2,322 Royalty-Free Audio Tracks for "Background Sound"

00:00
03:13
A peaceful, droning, relaxing summer soundscape of the midwestern forest. For starters, in the background you hear a river of wind steadily swirling around the oaks, and the maples and the sycamore trees. A blessed northeast wind-friend. The insects take over, and on top of that, a single, solitary bird, i think a flycatcher, softly calls his one-note. Even though this is the time of year that the visitors, those beautiful neo-tropical migrants, fill the woods, after several months of raising of raising a family, they are quiet, resting now. . . Letting the insects signify the passage of time and the slow march to autumn. In about 6 weeks from now, most of our visitors will have left. . . Back down south, their job of raising the next crop of insect-eaters done. . . And the woods, the forest, the nearly-dry creekbed will be packing it in. Recording done on saturday july 29th, 2017 at 11:30am in the forest near a creek with sound devices 702 and a rode ntg-2 shotgun microphone pointed straight up into the trees.
Author: Kvgarlic
00:00
05:12
Recorded with tascam dr-07mkii. While on holiday staying in a country cottage near some cow fields, there was a mother cow and what must have been her 2 calves which had been put into separate fields either side of a road. This was obviously pretty distressing for the cows and so they were constantly mooing at each other and being the kind of guy i am, of course i recorded it!. I have done as much as i can to reduce wind and other background noises (the windshield i have for my dr-07 doesn't seem to do a lot except make it look like it's got a 70s afro) and have trimmed all the cow sounds out and put them together into this one file. Some are better than others, it was hard to know which cow was gonna make a noise next. Free to use for anything, if you use it, would be cool if you let us know where in the comments, be interesting to see where they end up :).
Author: Lolamadeus
00:00
05:03
Handing out 2018 christmas gifts after lunch, launceston, tasmania. 11 adults, 6 children, 1 baby. Recorded on a pmd661 with a rode nt4 stereo mic. Six takes, separated by 1-second silence. 0. 00 - 0. 41: general ambience, washing-up sounds in background. “is this a trick present?”. 0. 42 - 1. 45: no washing up. “this is so exciting”, “which anna is this for?”. 1. 46 - 2. 20: “sam, where’d you get all that money?” “probably my best christmas ever”. “is it. Oh, that’s lovely to hear. ”. 2. 21 - 3. 48: “who calls me suzie?” “you’ll love it”. Exclamations and laughter. “from england”. “pickled onions”. 3. 49 - 4. 22: “what takes your fancy?” “anything that you don’t like”. “do you want something auntie jenny? it’s for the extended family”. Piano notes. 4. 23 - 5. 02: baby trying to cry, unhappy. “look at you. Such a big girl now”.
Author: Guyburns
00:00
00:11
Sound file of opening bars of "Adelaide" by Beethoven (piano reduction). Digital recording made with an acoustic piano and Audacity software by Opus33. This music is in the public domain. The recording is not copyrighted, and it is hereby released by Opus33 into the public domain. .mw-parser-output .commons-creator-table{background-color:#f0f0ff;box-sizing:border-box;font-size:95%;text-align:start}.mw-parser-output .commons-creator-table>tbody>tr{vertical-align:top}.mw-parser-output .commons-creator-table>tbody>tr>th{background-color:#e0e0ee;font-weight:bold;text-align:start}@media(max-width:719px){.mw-parser-output .commons-creator-table,.mw-parser-output .commons-creator-table>tbody{display:block;width:100%}.mw-parser-output .commons-creator-table>tbody{border-right:1px solid #aaa;border-bottom:1px solid #aaa}.mw-parser-output .commons-creator-table>tbody>tr{border-top:1px solid #aaa;display:flex;flex-wrap:wrap}.mw-parser-output .commons-creator-table>tbody>tr>th{border-left:1px solid #aaa;padding:2px;flex:1 1 100%}.mw-parser-output .commons-creator-table>tbody>tr>td{border-left:1px solid #aaa;padding:2px;flex:1 1}}@media(min-width:720px){.mw-parser-output .commons-creator-table{border:1px solid #aaa;border-collapse:collapse;border-spacing:0;padding:5px}.mw-parser-output .commons-creator-table>tbody>tr>th,.mw-parser-output .commons-creator-table>tbody>tr>td{border:1px solid #aaa;padding:2px}.mw-parser-output .commons-creator-table>tbody>tr>.halfwidth{max-width:10em}.mw-parser-output .commons-creator-table>tbody>tr>.fullwidth{max-width:20em}} Ludwig van Beethoven  (1770–1827)      
Author: Untitled
00:00
00:03
Sound file of passage from "Adelaide" by Beethoven, the first bars of the allegro molto section. Digital recording made with an acoustic piano and Audacity software by Opus33. This music is in the public domain. The recording is not copyrighted, and it is hereby released by Opus33 into the public domain. .mw-parser-output .commons-creator-table{background-color:#f0f0ff;box-sizing:border-box;font-size:95%;text-align:start}.mw-parser-output .commons-creator-table>tbody>tr{vertical-align:top}.mw-parser-output .commons-creator-table>tbody>tr>th{background-color:#e0e0ee;font-weight:bold;text-align:start}@media(max-width:719px){.mw-parser-output .commons-creator-table,.mw-parser-output .commons-creator-table>tbody{display:block;width:100%}.mw-parser-output .commons-creator-table>tbody{border-right:1px solid #aaa;border-bottom:1px solid #aaa}.mw-parser-output .commons-creator-table>tbody>tr{border-top:1px solid #aaa;display:flex;flex-wrap:wrap}.mw-parser-output .commons-creator-table>tbody>tr>th{border-left:1px solid #aaa;padding:2px;flex:1 1 100%}.mw-parser-output .commons-creator-table>tbody>tr>td{border-left:1px solid #aaa;padding:2px;flex:1 1}}@media(min-width:720px){.mw-parser-output .commons-creator-table{border:1px solid #aaa;border-collapse:collapse;border-spacing:0;padding:5px}.mw-parser-output .commons-creator-table>tbody>tr>th,.mw-parser-output .commons-creator-table>tbody>tr>td{border:1px solid #aaa;padding:2px}.mw-parser-output .commons-creator-table>tbody>tr>.halfwidth{max-width:10em}.mw-parser-output .commons-creator-table>tbody>tr>.fullwidth{max-width:20em}} Ludwig van Beethoven  (1770–1827)      
Author: Opus33 at English Wikipedia
00:00
00:05
Sound file of a brief passage from Mozart's Piano Sonata in G, K. 283 Third movement, starting measure 247. .mw-parser-output .commons-creator-table{background-color:#f0f0ff;box-sizing:border-box;font-size:95%;text-align:start}.mw-parser-output .commons-creator-table>tbody>tr{vertical-align:top}.mw-parser-output .commons-creator-table>tbody>tr>th{background-color:#e0e0ee;font-weight:bold;text-align:start}@media(max-width:719px){.mw-parser-output .commons-creator-table,.mw-parser-output .commons-creator-table>tbody{display:block;width:100%}.mw-parser-output .commons-creator-table>tbody{border-right:1px solid #aaa;border-bottom:1px solid #aaa}.mw-parser-output .commons-creator-table>tbody>tr{border-top:1px solid #aaa;display:flex;flex-wrap:wrap}.mw-parser-output .commons-creator-table>tbody>tr>th{border-left:1px solid #aaa;padding:2px;flex:1 1 100%}.mw-parser-output .commons-creator-table>tbody>tr>td{border-left:1px solid #aaa;padding:2px;flex:1 1}}@media(min-width:720px){.mw-parser-output .commons-creator-table{border:1px solid #aaa;border-collapse:collapse;border-spacing:0;padding:5px}.mw-parser-output .commons-creator-table>tbody>tr>th,.mw-parser-output .commons-creator-table>tbody>tr>td{border:1px solid #aaa;padding:2px}.mw-parser-output .commons-creator-table>tbody>tr>.halfwidth{max-width:10em}.mw-parser-output .commons-creator-table>tbody>tr>.fullwidth{max-width:20em}} Wolfgang Amadeus Mozart  (1756–1791)      
Author: Opus33 at English Wikipedia
00:00
07:17
Performance Conductor: Simon Schindler Ensemble: Fulda Symphonic Orchestra Location: Grosser Saal der Orangerie Fulda Work Composer: .mw-parser-output .commons-creator-table{background-color:#f0f0ff;box-sizing:border-box;font-size:95%;text-align:start}.mw-parser-output .commons-creator-table>tbody>tr{vertical-align:top}.mw-parser-output .commons-creator-table>tbody>tr>th{background-color:#e0e0ee;font-weight:bold;text-align:start}@media(max-width:719px){.mw-parser-output .commons-creator-table,.mw-parser-output .commons-creator-table>tbody{display:block;width:100%}.mw-parser-output .commons-creator-table>tbody{border-right:1px solid #aaa;border-bottom:1px solid #aaa}.mw-parser-output .commons-creator-table>tbody>tr{border-top:1px solid #aaa;display:flex;flex-wrap:wrap}.mw-parser-output .commons-creator-table>tbody>tr>th{border-left:1px solid #aaa;padding:2px;flex:1 1 100%}.mw-parser-output .commons-creator-table>tbody>tr>td{border-left:1px solid #aaa;padding:2px;flex:1 1}}@media(min-width:720px){.mw-parser-output .commons-creator-table{border:1px solid #aaa;border-collapse:collapse;border-spacing:0;padding:5px}.mw-parser-output .commons-creator-table>tbody>tr>th,.mw-parser-output .commons-creator-table>tbody>tr>td{border:1px solid #aaa;padding:2px}.mw-parser-output .commons-creator-table>tbody>tr>.halfwidth{max-width:10em}.mw-parser-output .commons-creator-table>tbody>tr>.fullwidth{max-width:20em}} Ludwig van Beethoven  (1770–1827)      
Author: user:OldakQuill
00:00
01:32
A stockholm, sweden commuter rail x60 train (alstom coradia nordic) on the then j35 (bålsta - nynäshamn) line arriving at and leaving from the älvsjö station. It was a cold day, if i recall correctly between -10 to -20°c (-5 to 15°f) and there was about 1 or 2 centimeters (1/4 to 1/2 inch) of powdery snow. 00:00 warning signal at crossing (for commuter train employees only) with train arriving in background. 00:21 footsteps in cold thin snow layer00:25 squealing as the train comes to a stop00:36 doors opening00:41 driver announcing that the train will depart for stockholm central station and bålsta station00:55 warning sound before doors are closing and more footsteps00:58 doors closing01:11 squealing as the train start to roll. Recorded friday december 18, 2009, 10:01 am (utc + 1 h), with the built in mic of a canon digital ixus 950 is camera (which could be used to record audio only). File straight off from the camera with the exception of id3 tags added with foobar2000 v1. 3. 4.
Author: Johan G
00:00
05:00
I combined an ambient bar crowd recording that i found here with a funky little back beat that i also found on this site and made a great cubicle noise blocker / filter. I use this at work with headphones on when i'm trying to concentrate and drown out conversations in the office. Also good for when i work from home and i'm trying to drown out the tv and other distractions. The crowd noise is excellent at diffusing regular office conversation and the little funky back beat keeps the crowd noise from getting boring. This works really well even at fairly low volume i. E. You dont have to crank it loud to drown out the distractions. Hope you like it and thanks to everyone for the great sounds on this site. Combination of the following two files - yet another bar crowd - june 2007. Wav (lonemonk)hip hop. Wav(ls)ps - i purposely let the crowd noise run out for a few seconds at the end so that you can appreciate the full groove of the hip hop. Wav. Has a nice effect when you loop the whole thing, gives you a little break from the crowd noise. Almost like you're stepping out of the room for a second.
Author: Chuckycheetos
00:00
05:08
What i hear in this sound is a crashing starship as you regain consciousness surrounded by chaos of the crew and emergency systems. At 00:52 there's a really cool explosion hit that fits the starship in danger vibe. Created from roughly 230 sounds in reaper by looping, batch actions and modulated filtering. All sounds came from a folder of freesound cc0 sounds i've been collecting. Here is the file list if you are curious:. 103117__geronimo83__elephant. Mp3107216__keithpeter__birmingham-botanical-gardens-mains-hum-from-tannoy. Wav110456__sagetyrtle__wings-121110. Wav116395__dean-raul-diarchangeli__tv-static. Wav120107__toc1__bird-wings. Aiff132843__cactus2003__creepy-ambience-background. Wav135506__chriddof__heavenly-computer. Wav138156__triad__hair-clippers-2. Wav14102__adcbicycle__15. Wav145094__crashoverride61088__whoosh-and-vacuum. Wav146957__zabuhailo__systemload. Wav151641__jamesmontour__8mm-film-camera. Aiff152317__logos-chroma__arp-odyssey-wind. Flac152455__dayvonjersen__long-sweep. Wav153277__gerardcatala__beating-wings-of-a-pigeon. Wav155800__mario1298__elevator-the-sixth-floor. Wav162493__tasmanianpower__vinyl-rewind. Wav165486__venaportae__wild-bees. Wav170761__esperar__bees. Mp3174278__voluntaryzonkey__horror-film-beep-sound. Mp3174718__paespedro__single-water-drop. Wav178995__beatproduction__emotional-string. Wav182110__qubodup__film-countdown. Flac187373__shapeshifterd__wee. Wav188197__splicesound__tv-television-on-off. Wav188388__wubitog__mid-high-tone-button-click. Wav192155__hitrison__picking-at-a-giant-fan. Flac194304__jmbphilmes__factory-machine-01. Wav19433__heigh-hoo__drumroll. Aiff195260__kayceemixer__fx-drone-kc-low-tone-mech-drone-pulse-tlspc-02. Wav198818__yuval__butterfly-wings. Wav202876__augustsandberg__african-savanna-2. Wav204725__dneproman__trailer-end-4. Wav211870__tubbers__airplane-flyover. Mp3234524__foolboymedia__notification-up-1. Wav235845__hermengarde__cartoon-spin. Mp3238251__steaq__dark-ambient-backgrounding-001. Wav240134__richerlandtv__factory-atmosphere. Mp3240476__godowan__wings. Wav242048__turrus__lightning-strike. Wav243011__tom-woysky__bees-in-hive-beehive. Wav243728__jarredgibb__drone-010. Wav244980__ani-music__wing-flap-flag-flapping-7a. Wav245381__davidthegreat14__film-score. Mp324795__reinsamba__scissors1. Wav248021__sophiehall3535__rusty-creak. Wav248121__wjoojoo__lightning. Flac249707__brunoboselli__paddles-rowing-on-a-calm-water-stream. Wav253567__schafferdavid__cartoon-4. Wav253638__wolfey1923__scuttling-across-wood-floor-w-reverb. Wav255883__dontgothere__funny-cartoon-robot. Wav259706__davidbain__fm-radio-tuning-sweep. Wav262755__bigpickle51__stereo-jet-landing-sample-2. Wav263892__jarredgibb__sub-rush-1. Wav263967__scotcampbell__funny-evil-cartoon-voice-with-laugh. Wav264442__geerose__harmonium-drone2. Flac264593__vacuumfan7072__cheap-tv-static. Mp3267584__schafferdavid__cartoon-8. Wav26785__walter-odington__hair-dressers-vision-london. Wav267899__chemicatz__air-rush. Wav269003__lwdickens__water-splash-2. Wav271531__rodincoil__disembarking-riverboat-crowd. Wav272037__aldenroth2__sipping-coffee. Wav277279__thiagoassis82terror__metal-gate. Wav277606__limitsnap-creations__phantom-train-lost-in-tunnel. Wav315768__benjaminharveydesign__dragon-growl-sad. Aiff315941__benjaminharveydesign__intercom-in. Aiff316744__bird-man__big-splash. Wav321905__bruce965__walkie-talkie-transmission-start. Flac329033__humanoide9000__coin-rolling-1. Wav330638__leonelmail__cloth-flapping-on-a-clothesline-thickly. Mp3330639__leonelmail__cloth-flapping-on-a-clothesline-gently. Mp3330644__devlab__rain-thunder-02. Wav331134__maurolupo__rolling-coin. Wav332711__amicasys__glitch. Wav334980__paulocorona__office-ambient-sound. Wav335727__rolar-dnb__a-rain-thunder-lightning-close-cars-sirens-loop. Wav335889__yoyodaman234__wind-through-trees. Mp3337813__blukotek__hammer-v4. Wav341612__pureaudioninja__electricity-4. Wav341666__sharesynth__electricity00. Wav345846__pcwvdmark__inside-a-traditional-dutch-windmill-2. Wav349693__drmaysta__cartoon-arrow-hit. Wav350960__nycct-sounddesign__printer-ja. Wav353416__squashy555__seagull-on-beach. Mp3353849__dtmp__alien-voice. Aiff353878__oldpueblo__beach-assorted-scenes-including-college-students-organizing-a-game-chattering. Flac353976__tec-studio__drone. Wav360775__dnlburnett__ambience-urban-park-evening-windy-trees. Wav369859__splicesound__digital-computer-blips-and-pops. Wav369910__germanio__mug-hit. Wav371290__mlppeace__foghorn. Mp3371603__jacksonmiller0__odd-glitch. Wav372181__amholma__ocean-noise-surf. Wav376708__fthgurdy__crinkling-dried-flowers. Wav377329__mystikuum__water-drops. Wav37732__longhairman__1khz-1ds-peep. Wav380124__mia28portman__eagle. Ogg380397__avantdebris__botanical-gardens. Wav380730__semenov-nick__00-car-across. Wav382444__omarie__waiting-4. Mp3382944__alancat__deepbreakers1a. Mp3382948__prim-ordial__blips-and-bloops. Wav383654__deleted-user-7146007__electricity. Wav386706__tommy-mooney__wings-flapping. Wav387551__stair__sweep. Wav387904__bajko__sfx-water-drops. Wav389633__stubb__wing-flap-2 (1). Wav389633__stubb__wing-flap-2. Wav389634__stubb__wing-flap-1 (1). Wav389634__stubb__wing-flap-1. Wav394673__ihitokage__scary-old-rusty-gate-squeaking. Ogg395242__digpro120__wings-flapping. Mp3396678__dbspin__quiet-berlin-cafe-1. Wav397082__relwin__digitalradio-noise1. Wav398274__flashtrauma__electricity. Wav402781__funwithsound__butterfly-wings-fluttering-1. Wav403934__mastermind76__car-indicator-toyota-aygo. Wav406924__kyles__botanical-gardens-park-tropical-jungle-birds-crickets-flies-open-air-tone-entebbe-uganda-africa-2016. Wav408592__miguelab1998__2-beating-of-wings. Wav411651__evanjones4__film-for-a-music. Wav412025__zachrau__typing-message-on-a-mobile-phone. Wav412145__stefan021__film-projector-long-run-with-finish. Wav412429__florianreichelt__mysterious-accoustic-guitar-film-sound. Wav414671__zouzmusic__short-pigeon-wing-flap. Wav414818__bokal__office-chair-rolling. Mp3416873__simonlabelle__delicate-horse. Wav420728__claypipe__realitycoming. Mp3425090__neospica__pressurized-door-opening. Wav425787__thatkellytrna__wrinkle-bag. Wav427822__asaphelps__filmsocialisme. Mp3432291__schmaddio__rusty-spring. Wav432817__harlemdaw__happy-tune. Mp3433584__jackmurrayofficial__car-starting-and-accelerating. Wav433977__joedozer__rusty-fan. Wav435082__piwikiwi__film-tape. Wav437968__craigsmith__g12-35a-eagle-cries. Wav438620__craigsmith__g39-03-cartoon-boings. Wav441622__danielajq__6-2-aleteo. Wav441966__detringer__glitch-1. Wav442773__qubodup__big-water-splash. Wav443061__schoggimousse__water-cave. Wav445048__bassboybg__touchscreen-keyboard. Wav445958__breviceps__cartoon-bat-mouse-squeak. Wav445960__breviceps__cartoon-duck-quack. Wav446930__sofial1224__20-suspiro-consolidated. Wav447458__florianreichelt__paper-money-sound. Wav448375__audionauten__robot-moves-his-arm. Wav448621__neilsher__ambient-creepy-soundscape. Mp3450042__kyles__phone-telephone-ring-office-nice-iconic-close-to-speaker. Wav452795__cloe-king__sweeping-on-carpet. Wav452931__kyles__crowd-int-crowded-small-theater-lobby-ifc1-nyc-usa. Flac454259__kyles__tv-channel-change-static-blips-scanner-cb-radio-tuning-static-blips-static-sharp-scanner-cb-radio-blips-on-off-good2. Flac455309__free-rush__empty-coffee-machine. Wav455385__thomasomas__recharge-sound. Wav456246__tc630__terminal-velosity. Flac456761__sieuamthanh__ai-bang-con. Wav457043__breviceps__busy-room-ambience-small-crowd-people-talking-in-background. Wav457438__samwd__flourescent-light. Wav458461__prometheus888__carengine. Wav458627__tetrisrocker__clock. Wav458711__fabrizio84__waterfall. Mp3459409__pfannkuchn__small-river-1-slow-close. Wav459573__dougbarrett123__cafe-recording-take-1-zoom0047-lr. Wav459983__florianreichelt__rain-water-dripping-softly. Mp3462462__soojay__seagulls-gaviotas-clean-wildtrack. Wav462889__mycompasstv__frogs-croaking-crickets-at-night-in-jungle-swamp-africa. Mp3462958__bastianhallo__cartoon-jump. Wav462959__lizapenelope__cafe-sounds. M4a464496__kaygrum__river. Wav468164__wintuh__36-corriendomadera. Wav468240__cristian-vogel__bees-around-flowers. Aiff477643__richwise__foggy-morning-at-weston-shore. Wav478306__magmi-soundtracks__creepy-classical-music-01. Wav479050__nuncaconoci__rusty-hatch. Wav484157__tempermode__fluorescent-light-flickering-1. Wav489999__deleted-user-8803593__elevator-music. Wav492378__nicknamelarry__spaceship-take-off-sound-effect. Wav494497__pianofarm__farm-summer-ambience-07-09-2019. M4a495656__aunrea__dog-whimper-1. Wav495711__tosha73__strange-digital-noise-003. Wav495712__tosha73__strange-digital-noise-002. Wav495713__tosha73__strange-digital-noise-001. Wav495795__priesjensen__car-driving-ambience. Wav500146__phonoflora__foghorn. Wav502657__justfornoise__old-film-projector. M4a502680__fission9__train-station-3. Wav503815__neezen__sweep. Wav506157__sifujordan__big-splash. Wav507081__paulprit__einarrson-fast-retrieve. Wav507088__paulprit__einarrson-slow-retrieve. Wav507471__danjocross__long-distant-foghorn. Aiff507472__danjocross__great-echoing-foghorn. Aiff509440__claudiachaveslopes__teclado-sms. M4a510917__lydmakeren__seagulls-short. Wav511485__mattleschuck__cartoon-wink-magic-sparkle. Wav514234__nicknamelarry__sound-effect-flight. Wav514486__whammy__office-stamp. Wav515164__stuntstudio__1920s-style-cartoon-motif. Wav515293__breviceps__propeller-plane. Wav516928__mariethompson__waterfall4. Mp3518037__rvgerxini__fan-motor. Mp3521967__kastenfrosch__megaphone-radio-gibberish-4. Ogg523016__tripjazz__lightning-discharge. Wav523399__cyoung510__waves-lapping. Wav524205__dylanh-sound__radio-sign-off. Wav524934__mc5__electrical-noise. Wav52780__guitarguy1985__data. Wav527845__d-jones__elephant-trumpets-growls. Flac529031__szegvari__storm-cave-reverb-fantasy-field-recording-200726-0021-01-01. Wav530078__snail-legs__flapping. Ogg531482__nataliabm09__oven. Wav533146__mattfinarelli__drop-water. Mp3535211__anaponce__typing. M4a541506__se2001__cartoon-quick-zip. Wav541606__d4xx__stir-mug. Wav541664__mamie-wilhelm__mamie-gibberish-2. M4a541796__zoshp__telephone-ringing-digital. Wav543111__clusman__bird-flapping-5. Wav544260__walthamstow-walker__a-bit-like-a-film-projector. Wav545611__bandslam33__wings-03. Wav545613__bandslam33__wings-04. Wav547016__neopolitansixth__classic-computing-sound. Wav551748__jpbillingsleyjr__finger-banging. Aiff65428__gumballrimpoche__glitchys. Wav69570__bidone__lion-loud. Mp382610__indigosierra__scribble. Mp385568__joelaudio__dragon-roar. Wav87785__graygaffer__ferry. Wav91555__polymorpheva__inside-tangara-syd. Mp391919__filipe-chagas__water-lapping-rocky-beach-ambiance. Wav93337__polymorpheva__cicadas-rbg. Wav.
Author: Aemyn
00:00
14:14
Cathedral bells for ukraine. Church bells for peace and justice. The dutch make all church bells ring for the ukraine. Freedom for the ukrainians. The bells from sint jan’s kathedraal (saint john’s cathedral) and in the background the bell from the grote kerk (large church) in 's-hertogenbosch, netherlands march 2 at 2022. 5. 15 pm. Голландці дзвонять у всі церковні дзвони за україну. Свобода для українців. Хертогенбос, 2 березня 2022 року, 17:15. Except that the dutch are collecting money and goods for the people of ukraine, all churches will ring the bells for fifteen minutes today, march 2, 2022 at 5. 15 pm. The first refugees have arrived in our country. Welcome. Hopefully these church bells will go virtual viral, and i hoop that people will help where they can. Date/time: march 2nd 2021, 5:15 pm. Weather: 8c, sun, wind e 2 bft with gusts to 14 km/h, 1021 hpa, humidity 48%. Location; parade, ‘s-hertogenbosch (den bosch), noord-brabant, netherlands (holland), europe. Gps 51. 687467 5. 308463. Gear chain: sennheiser mkh30/50 ms, in rycote cyclone small, windjammer > sound devices 302 >tascam dr-100 mk2. Decoded mid-side to stereo.
Author: Klankbeeld
00:00
62:35
This is my recreation of the noise in the background of a video shot on a consumer grade minidv camcorder (a well used one). I haven't had a minidv camcorder on hand for a few years and nobody i knew would give me a recording of just tape motor noise so i went to create the noise myself. This sound is a combination of a very badly pressed dvd in my computer's drive mixed with a tone made in audacity (up one octave from the tone that the disc ended up creating), all mixed down and brought down in volume. I know it's not a prefect recreation, but i don't have a minidv camcorder on hand so this is about as good as i can get it. If anyone has access to an anechoic chamber, a fresh tape, and a well used consumer grade minidv camcorder, please get in touch with me. I'd like the real deal better than my recreation that i did in my spare time. Note on recreating the noise out of hdv camcorders. They have slightly different hardware and as such will create different bearing noise (most times, there's an extra whine on top of the familiar bearing whine heard from standard dv camcorders). I forget the exact frequency, but it's somewhere in the neighborhood of 840hz-860hz and it's a sort of sine wave, but a modest bit more jagged. You'll have to provide your own stock camcorder mic hiss as each camcorder is different (not for definite sure on sony camcorders, but canon camcorders have a pink-ish white noise in about that era).
Author: Bakonfreek
00:00
02:34
A late summer soundscape that is a favorite of mine. . Microphones set up in some mature woods about 60 feet from a large lake on labor day weekend. Most of the background is the insects, which are very obvious during this time of year. The swelling of their volume is nap-inducing (*at least to me in my opinion. )here is the midwest this swelling and subsiding of the insect wave tells me that summer is just about starting to go back downhill, after a feverish peak. Despite the covid-19 of the year, nature does not seem to have changed her soundscape. Life goes on in the forests. The birds, whose job of raising young is over, are still there. . . They're just resting and relaxing and listening to the insects as well i'm sure. Now of course you will hear a few prominent birds in this captured moment:(1) a great blue heron squawks out starting at 1:17 into this piece. (2) the alarm call of a red-headed woodpecker can be heard at 2:14. Other than that, just the insects singing their hearts out and the assortment of birds taking secondary place during this time of year. This was recorded on sunday september 6th 2020 at 8:30 in the morning in the forest in southern illinois. Equipment: zoom f4, microphone: sennheiser mkh 8060. Enjoy this audio snapshot of the subdued -- yet vibrant - sound color of late summer, finding comfort in the fact that, within four weeks, the colors of the leaves will be changing to oranges and reds and yellows. But, for now, there is still life to live in the insect and bird world.
Author: Kvgarlic
00:00
01:08
This is the audible annunciation found at all intersections with traffic lights in paris, france. It announces the condition of the traffic lights for pedestrians who are blind or with impaired vision. The annunciation is turned on by pressing a button on the traffic light pole. When the crosswalk sign is red (do not cross), the recorded annunciation is always "rouge piéton" ("red light, pedestrian"), followed by the name of the street that the crosswalk crosses (in this case "rue d'antin," the quiet side street where i recorded this). This repeats over and over until the crosswalk changes to green, at which point there is a two-second trill tone followed by a repeating bell tone. The bell tone is one bell, followed by two bells, repeated four times, followed by a very brief pause, and then the sequence is repeated again. This continues until the crosswalk changes back to red, at which point the "rouge piéton" message resumes. The annunciation continues for at least one cycle of the traffic lights and then stops, unless the button is pressed again. The audio quality of the annunciation is very poor even in real life (it sounds like a wax cylinder recording or something), and can be difficult to understand. This recording accurately captures the poor quality of the annunciation. The volume of the annunciation is also adjusted dynamically based on ambient noise, so there is a slight change in volume on this recording as the system apparently reacts to noise from traffic or something. There is a weak background noise that sounds like some sort of machine, but it wasn't coming from the traffic light and i don't know the source. The recording starts with the crosswalk red, then at about 18. 3 seconds it changes to green, then it changes back to red at about 53 seconds. A car passes at around 48 seconds. Recorded with a zoom h4n, stereo 96 khz / 24 bits, built-in mics, from about ten inches below the tiny speaker in the crosswalk sign housing.
Author: Mxsmanic
00:00
00:03
We develop iphone app that perform musical analysis on recorded audio from the iphone. Our app implementation make use of the audio queue service to receive raw audio buffers from the audio queue callback. In the first version of our app we had the problem of too much clipping on the recording which degrade the accuracy of our analysis. We also suspected that the noise canceling algorithm in iphone 5 produce distorted sound, which is not much noticeable by human ear but distorted enough to affect our sensitive algorithm. We found that the solution to our problem is to set the audio session mode to kaudiosessionmode_measurement. This session mode is supposed to give maximum freedom for us to control the microphone input, which include turning off the automatic gain control and probably noise canceling as well. The solution works very well except that it introduce a strange waveform pattern in the beginning of all recordings in iphone 5. It is very hard to explain the waveform we get, so i made two recordings at freesound so that you can see it visually. The first recording is made in an almost quite environment, and you can see the weird spike in the beginning of the recording. The second recording (this recording) is made with constant background noise, and you can see that the actual sound wave is offset from the strange curve and gradually increase to its original volume. This waveform only happens on iphone 5 devices that we tested, and there is no problem at all for iphone 4s and older generations. We have tried various settings and the glitch is still unavoidable as long as we set the audio session mode to kaudiosessionmode_measurement. We also find similar glitch in one of our iphone 5 devices, in which the glitch happens even if we try to set just the input gain level without changing the session mode. We are not sure if this is a hardware-related bug in iphone 5, or if it is fixable software glitch in the future version of ios. For the moment we are looking for workaround that can avoid this glitch while automatic gain control and noise canceling are disabled.
Author: Soareschen
00:00
04:15
Favorite airs from The Mikado (music by Gilbert and Sullivan, 1885) was a 1914 production by Edison Records, performed by the Edison Light Opera Company. This was one of several phonograph cylinders put out by Edison Records (and, no doubt, others) that attempted to encapsulate an entire opera or musical in about four minutes generally, they consisted of a bit of the opening chorus, a verse or two from one or two of the songs, then a bit of the Act II finale. This one is not atypical. The cast is not given, but in the 1913 recording of Pinafore, also by the Edison Light Opera Company, the following singers were featured: Elizabeth Spencer, Mary Jordan, Harry Anthony, Walter Van Brunt, James F. Harrison, and William F. Hooley The only copy of the recording I had to work from was not particularly high quality, and, though I think I managed to clean it up fairly well, I had to leave some of the background noise in, or the singers start to sound unnatural since cleanup of static does, by necessity, remove some information as well. By removing clicks and pops, then blending a noise-reduced track with the one just cleaned of the clicks and pops, good results can be achieved. Notes This was Edison Blue Amberol #2179, which was a reissue of Edison 4-minute Amberol #465. Songs All songs are heavily abridged: Overture (first few seconds) A wand'ring minstrel I Three little maids from school are we Tit-willow (On a tree by a river) Act II Finale: "For he's gone and married Yum-Yum" and "The threatened cloud has passed away" The full text of The Mikado is available on English Wikisource: s:The Mikado.
Author: Gilbert and Sullivan; Edison Light Opera Company
00:00
04:16
Favorite airs from The Mikado (music by Gilbert and Sullivan, 1885) was a 1914 production by Edison Records, performed by the Edison Light Opera Company. This was one of several phonograph cylinders put out by Edison Records (and, no doubt, others) that attempted to encapsulate an entire opera or musical in about four minutes generally, they consisted of a bit of the opening chorus, a verse or two from one or two of the songs, then a bit of the Act II finale. This one is not atypical. The cast is not given, but in the 1913 recording of Pinafore, also by the Edison Light Opera Company, the following singers were featured: Elizabeth Spencer, Mary Jordan, Harry Anthony, Walter Van Brunt, James F. Harrison, and William F. Hooley The only copy of the recording I had to work from was not particularly high quality, and, though I think I managed to clean it up fairly well, I had to leave some of the background noise in, or the singers start to sound unnatural since cleanup of static does, by necessity, remove some information as well. By removing clicks and pops, then blending a noise-reduced track with the one just cleaned of the clicks and pops, good results can be achieved. Notes This was Edison Blue Amberol #2179, which was a reissue of Edison 4-minute Amberol #465. Songs All songs are heavily abridged: Overture (first few seconds) A wand'ring minstrel I Three little maids from school are we Tit-willow (On a tree by a river) Act II Finale: "For he's gone and married Yum-Yum" and "The threatened cloud has passed away" The full text of The Mikado is available on English Wikisource: s:The Mikado.
Author: Gilbert and Sullivan; Edison Light Opera Company
00:00
07:13
Created from roughly 256 sounds in reaper by looping and batch actions. All sounds came from a folder of freesound cc0 sounds i've been collecting. Here is the file list if you are curious:. 103117__geronimo83__elephant. Mp3107216__keithpeter__birmingham-botanical-gardens-mains-hum-from-tannoy. Wav110456__sagetyrtle__wings-121110. Wav119161__reinsamba__110419-000-sheep-bleating. Wav120107__toc1__bird-wings. Aiff134025__danielrutterfilms__necksnap-build. Wav135506__chriddof__heavenly-computer. Wav14102__adcbicycle__15. Wav146558__john129pats__hybrid-monster-growl. Wav146957__zabuhailo__systemload. Wav151641__jamesmontour__8mm-film-camera. Aiff152317__logos-chroma__arp-odyssey-wind. Flac155800__mario1298__elevator-the-sixth-floor. Wav156522__timbre__retro-video-game-sweep. Flac165486__venaportae__wild-bees. Wav16793__pushtobreak__earth1. Aiff170761__esperar__bees. Mp3178995__beatproduction__emotional-string. Wav182110__qubodup__film-countdown. Flac184700__lloydevans09__spooky-love. Wav187373__shapeshifterd__wee. Wav188388__wubitog__mid-high-tone-button-click. Wav190504__fk-prod__baby-dinosaur. Mp3192155__hitrison__picking-at-a-giant-fan. Flac19433__heigh-hoo__drumroll. Aiff198367__blumo__beam-sequence. Wav200813__jotliner__quindar-tone. Mp3202876__augustsandberg__african-savanna-2. Wav204725__dneproman__trailer-end-4. Wav211870__tubbers__airplane-flyover. Mp3219943__qubodup__dragon-scream. Flac222528__queen-westeros__woman-scream. Wav234681__odilonmarcenaro__nash-point-foghorn. Wav235845__hermengarde__cartoon-spin. Mp3240134__richerlandtv__factory-atmosphere. Mp3240715__deleted-user-2906614__dragon-roar. Flac245381__davidthegreat14__film-score. Mp3248121__wjoojoo__lightning. Flac249686__cylon8472__cthulhu-growl. Wav253567__schafferdavid__cartoon-4. Wav253638__wolfey1923__scuttling-across-wood-floor-w-reverb. Wav255883__dontgothere__funny-cartoon-robot. Wav262755__bigpickle51__stereo-jet-landing-sample-2. 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Wav389633__stubb__wing-flap-2. Wav389634__stubb__wing-flap-1 (1). Wav389634__stubb__wing-flap-1. Wav393067__wakerone__electric-zap-electricity. Wav394592__asteroiderer__noise-cache. Wav394673__ihitokage__scary-old-rusty-gate-squeaking. Ogg395242__digpro120__wings-flapping. Mp3396678__dbspin__quiet-berlin-cafe-1. Wav397082__relwin__digitalradio-noise1. Wav398274__flashtrauma__electricity. Wav399272__cetsoundcrew__catapulted-animals. Wav399273__cetsoundcrew__cow-and-catapult. Wav406924__kyles__botanical-gardens-park-tropical-jungle-birds-crickets-flies-open-air-tone-entebbe-uganda-africa-2016. Wav409391__asteroiderer__wave-sequence. Wav411651__evanjones4__film-for-a-music. Wav411926__asteroiderer__sacrificial-summons. Wav412145__stefan021__film-projector-long-run-with-finish. Wav412429__florianreichelt__mysterious-accoustic-guitar-film-sound. Wav413680__asteroiderer__fidget-prop. Wav414818__bokal__office-chair-rolling. Mp3416873__simonlabelle__delicate-horse. Wav420728__claypipe__realitycoming. Mp3425787__thatkellytrna__wrinkle-bag. Wav428076__pschrandt__sad-blub. Wav432817__harlemdaw__happy-tune. Mp3435082__piwikiwi__film-tape. Wav435692__samsterbirdies__bbang. Ogg437968__craigsmith__g12-35a-eagle-cries. Wav438620__craigsmith__g39-03-cartoon-boings. Wav438932__vykroft__large-creature-vocals. Wav441966__detringer__glitch-1. Wav442773__qubodup__big-water-splash. Wav444241__asteroiderer__last-out. Wav44429__thecheeseman__hurt2. Wav444494__breviceps__cartoon-smoochy-squeak-plop. Wav445048__bassboybg__touchscreen-keyboard. Wav445117__breviceps__cartoon-splat. Wav445958__breviceps__cartoon-bat-mouse-squeak. Wav445960__breviceps__cartoon-duck-quack. Wav446930__sofial1224__20-suspiro-consolidated. Wav447458__florianreichelt__paper-money-sound. Wav448089__breviceps__zombies-eating. Wav448090__breviceps__theremin-horse. Wav448375__audionauten__robot-moves-his-arm. Wav448621__neilsher__ambient-creepy-soundscape. Mp3453388__breviceps__drifting-into-dreamland. Wav454259__kyles__tv-channel-change-static-blips-scanner-cb-radio-tuning-static-blips-static-sharp-scanner-cb-radio-blips-on-off-good2. Flac454476__asteroiderer__alduin-s-face. Wav454477__asteroiderer__alien-stalker. Wav454478__asteroiderer__tri-sci-fi. Wav454886__asteroiderer__longest-word. Wav455309__the-sacha-rush__empty-coffee-machine. Wav455906__jhennaside__dinosaur. Wav456246__tc630__terminal-velosity. Flac456761__sieuamthanh__ai-bang-con. Wav458627__tetrisrocker__clock. Wav458711__fabrizio84__waterfall. Mp3459573__dougbarrett123__cafe-recording-take-1-zoom0047-lr. Wav459983__florianreichelt__rain-water-dripping-softly. Mp3462889__mycompasstv__frogs-croaking-crickets-at-night-in-jungle-swamp-africa. Mp3462958__bastianhallo__cartoon-jump. Wav467882__samsterbirdies__beep-warning. Ogg468080__kinoton__seagull-swarm-at-port. Wav477643__richwise__foggy-morning-at-weston-shore. Wav479380__breviceps__dragon-several-roars-growls-and-snarls. Wav483473__nfsmaster821__owo. Wav483883__samsterbirdies__charge-up. Ogg485802__grez1__scream14. Mp3489999__deleted-user-8803593__elevator-music. Wav491407__samsterbirdies__jet-engine-startup. Flac492378__nicknamelarry__spaceship-take-off-sound-effect. Wav494497__pianofarm__farm-summer-ambience-07-09-2019. M4a495656__aunrea__dog-whimper-1. Wav495711__tosha73__strange-digital-noise-003. Wav495712__tosha73__strange-digital-noise-002. Wav495713__tosha73__strange-digital-noise-001. Wav500146__phonoflora__foghorn. Wav501328__asteroiderer__ballistic-travel. Wav502889__d592677__power-star-rumble. Wav504571__thebluerat__glinting-pitch. Wav504574__thebluerat__tone-sequence. Wav504575__thebluerat__polar-bell. Wav504598__thebluerat__effect1. Wav504600__thebluerat__erika-s-foot. Wav504608__thebluerat__liar-synth-black-background. Wav506157__sifujordan__big-splash. Wav507471__danjocross__long-distant-foghorn. Aiff507472__danjocross__great-echoing-foghorn. Aiff509440__claudiachaveslopes__teclado-sms. M4a511485__mlaudio__cartoon-wink-magic-sparkle. Wav512370__asdfgort__siren-2. Aiff512450__aemyn__empty-soda-can. Flac514234__nicknamelarry__sound-effect-flight. Wav514486__whammy__office-stamp. Wav515164__stuntstudio__1920s-style-cartoon-motif. Wav515293__breviceps__propeller-plane. Wav516895__shortrecord__horror-ambient-factory-2. Mp3516928__mariethompson__waterfall4. Mp3518037__rvgerxini__fan-motor. Mp3521967__kastenfrosch__megaphone-radio-gibberish-4. Ogg522567__samsterbirdies__horror-sting. Flac52284__trip2000__gun-shot. Aiff52760__heigh-hoo__drumroll-for-ceremony-long. Mp352780__guitarguy1985__data. Wav527845__d-jones__elephant-trumpets-growls. Flac529031__szegvari__storm-cave-reverb-fantasy-field-recording-200726-0021-01-01. Wav530078__snail-legs__flapping. Ogg531482__nataliabm09__oven. Wav533146__mattfinarelli__drop-water. Mp3535211__anaponce__typing. M4a537591__dauzkobza__beeps. M4a541506__se2001__cartoon-quick-zip. Wav541606__d4xx__stir-mug. Wav541664__mamie-wilhelm__mamie-gibberish-2. M4a541796__zoshp__telephone-ringing-digital. Wav544260__walthamstow-walker__a-bit-like-a-film-projector. Wav546391__dreeme__dragon-roar. Wav547016__neopolitansixth__classic-computing-sound. Wav556627__cookies-policy__power-switch-on. Wav563021__cookies-policy__water-puddle-splash. Wav564166__aemyn__crashing-starship. Flac565404__vineorange4__kskq. Aiff565405__vineorange4__falling-down. Aiff565411__vineorange4__mmcdona1-sound-17. Aiff565562__vineorange4__clap. Aiff565569__vineorange4__i-m-not-playing. Aiff565579__vineorange4__weirdsirentest. Aiff565580__vineorange4__eows612-1. Aiff565837__vineorange4__project2929. Wav568034__krotlitn__broken-radar. Wav569326__gosiives__pier-jismein-1. Wav569590__gosiives__siren-non-functional. Wav569598__gosiives__siren-start-deal. Wav569667__gosiives__untitled-327. Aiff569668__gosiives__untitled-326. Aiff569809__gosiives__. Aiff569811__gosiives__untitled-285-3. 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Wav69570__bidone__lion-loud. Mp378674__joe93barlow__on0. Wav80401__steveygos93__explosion2. Wav81874__stevebob69__foghorn2. Wav82610__indigosierra__scribble. Mp385568__joelaudio__dragon-roar. Wav87785__graygaffer__ferry. Wav91555__polymorpheva__inside-tangara-syd. Mp393337__polymorpheva__cicadas-rbg. Wav.
Author: Brazilio
00:00
01:59
Thank you for listening. If you enjoyed this music, please subscribe to my youtube-channel. About this release:download available at https://freesound. Org/people/kjartan_abel/sounds/608392/ and soundcloud. Usage rights and limitationsthis release is licensed under the creative commons attribution-sharealike 4. 0 license, which allows you it freely in your own projects (commercial or otherwise) as long as provide proper credit:. ————————————————————–april showers by kjartan abel. Visit https://kjartan-abel. Com/library to download royalty-free music for your next project. Cc by-sa 4. 0 attribution-sharealike 4. 0 international. ————————————————————–. About the artist:best known for his immersive musical journeys, kjartan abel composes original music and soundscapes for a variety of media projects, including youtube videos, podcasts, television shows, games, art installations and for feature films. Creatively influenced by the likes of vangelis, jean michel jarre, koto, laserdance, and røyksopp, tangerine dream and kraftwerk to name a few. Please subscribe to kjartan abel on youtube: https://kjartan-abel. Com/youtube. Listen to kjartan abel:spotify: https://kjartan-abel. Com/spotifyapple music: https://kjartan-abel. Com/applemusicamazon music: https://kjartan-abel. Com/amazonmusicsoundcloud: https://kjartan-abel. Com/soundcloudyoutube music: https://kjartan-abel. Com/ytmusic. Follow kjartan abel:instagram https://kjartan-abel. Com/instagramfacebook https://kjartan-abel. Com/facebooktwitter https://kjartan-abel. Com/twitterpinterest https://kjartan-abel. Com/pinterest. This track was supported by generous patreons:want more royalty free music? consider supporting me on patreon: https://kjartan-abel. Com/patreon. Copyright issues:none of my music has been uploaded to content id so there should be no copyright issues if you use it on youtube or any other service, but copyright claims against user-generated videos on youtube do arise from time to time. To learn more about any copyright issues, please visit https://kjartan-abel. Com/copyright-issues/. Usage rights and limitations:simply put – music in the music library is free, even for commercial use, as long as attribution is given! downloadable files are licensed under the creative commons attribution by-sa 4. 0 international license (cc by sa 4. 0) unless stated otherwise. To learn more about your usage rights and limitations, please visit https://kjartan-abel. Com/usage/. Please use the contact form at https://kjartan-abel. Com/contact/ for inquiries!. Thank you for your cooperation. Take care and enjoy this composition!.
Author: Kjartan Abel
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00:03
88 piano keys, long natural reverb: up to 13 seconds per note. This is me giving back. I love freesound. You guys saved my bacon back in the day. Recently i searched for free piano notes for a game i'm making, but the only ones i could find ended too quickly. I need long reverb! luckily i have an old piano, so i made my own. So this is me giving back. This is an old piano!!!. We had the piano tuned a year ago, but it is well over 60 years old, so be warned! these notes have character! if you want perfect tone, either edit them individually, generate something artificially, or buy a professional set. But if you want a piano with personality, this is for you. Being an old piano, it only has 85 keys. So i created the highest 3 notes by speeding up previous notes, to make the modern standard 88 keys. How the notes were created. The notes are created on an old (well over 50 years) steinhoff upright piano. It only has 85 keys, so i faked the highest 3 keys by taking previous keys and changing their pitch. I opened the top, balanced my trusty everesta bm-800 condenser microphone across the top near the high note end, and held down the "loud" pedal. Each note was then hit and kept pressed down until i could no longer hear any reverb. Notes were saved as mp3 using my laptop, using free sound recorder on the highest quality settings. Yeah, i know it isn't flac, but i am strictly amateur with budget to match, and that was the best i could do. After that, all editing was of course uncomopressed until the final save. How the notes were edited. Editing was kept to a minimum, mainly to enhance the reverberation. All editing took place on audacity on linux mint. First i cropped any silence from the start. Next, used the envelope function to gradually increae volume to 200% over a couple of seconds. That is, the quietest part of the reverb is twice as loud as you might expect. Because for my game i sometimes need a single piano key to last ten seconds. Next i maximised the volume. If there was just a single stray waveform that stuck out then i reduced that by 2db or so then maximised again. Because like i said, i want to hear that reverb! i then found the part where background noise starts to be noticeable, and faded out over 1 second or so. This meant that the lowest notes had as much as 13 seconds of reverb, whereas the highest notes might only have 2 or so. Finally i checked the result, and edited three or four notes that i felt were just too ugly (badly tuned, or for some reason the software suddenly got hissy when the note became too quiet. Weird. ) i also slightly changed the pitch of a couple of notes that were slightly out of tune but otherwise ok. No doubt a better ear than mine could teak all of the notes. But as i said, it's an old piano and we're keeping it real. Finally, files were compressed to ogg at the highest quality setting, using soundkonverter. Why not flac?. I live in the countryside with very slow broadband, so i apologise for including more of the original files. But as it was, uploading this zip file took about an hour. Enjoy. Legal. Use this for anything you want, commercial or not, credit me or not. Consider it public domain. My main concern is that i had completely legal sound for my game, with nice long reverb and character. Uploading it here provides proof that i created it first, just in case anybody comes back and says "those are mine" (it happens).
Author: Tedagame
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00:37
A few cycles of my dad's home oxygen machine with a ticking battery operated clock in the background recorded in the early morning in the living room with lifecam hd3000 webcam at the end of about 16 feet of usb cable dragged out of my bedroom. He's about 6 feet away, i was with my back to the room with my camera pointed at my chest so he wouldn't think i was filming. It would seem this is the first and only oxygen machine on freesound. A full cycle seems to last from between 7 to 10 seconds. From wikipediaoxygen concentrators typically use pressure swing adsorption technology and are used very widely for oxygen provision in healthcare applications, especially where liquid or pressurised oxygen is too dangerous or inconvenient, such as in homes or in portable clinics. Oxygen concentrators are also used to provide an economical source of oxygen in industrial processes, where they are also known as oxygen gas generators or oxygen generation plants. Oxygen concentrators utilize a molecular sieve to adsorb gasses and operate on the principle of rapid pressure swing adsorption of atmospheric nitrogen onto zeolite minerals and then venting the nitrogen. This type of adsorption system is therefore functionally a nitrogen scrubber leaving the other atmospheric gasses to pass through. This leaves oxygen as the primary gas remaining. Psa technology is a reliable and economical technique for small to mid-scale oxygen generation, with cryogenic separation more suitable at higher volumes and external delivery generally more suitable for small volumes. [1]at high pressure, the porous zeolite adsorbs large quantities of nitrogen, due to its large surface area and chemical character. After the oxygen and other free components are collected the pressure drops which allows nitrogen to desorb. An oxygen concentrator has an air compressor, two cylinders filled with zeolite pellets, a pressure equalizing reservoir, and some valves and tubes. In the first half-cycle the first cylinder receives air from the compressor, which lasts about 3 seconds. During that time the pressure in the first cylinder rises from atmospheric to about 1. 5 times normal atmospheric pressure (typically 20 psi/138 kpa gauge, or 1. 36 atmospheres absolute) and the zeolite becomes saturated with nitrogen. As the first cylinder reaches near pure oxygen (there are small amounts of argon, co2, water vapour, radon and other minor atmospheric components) in the first half-cycle, a valve opens and the oxygen enriched gas flows to the pressure equalizing reservoir, which connects to the patient's oxygen hose. At the end of the first half of the cycle, there is another valve position change so that the air from the compressor is directed to the 2nd cylinder. Pressure in the first cylinder drops as the enriched oxygen moves into the reservoir, allowing the nitrogen to be desorbed back into gas. Part way through the second half of the cycle there is another valve position change to vent the gas in the first cylinder back into the ambient atmosphere, keeping the concentration of oxygen in the pressure equalizing reservoir from falling below about 90%. The pressure in the hose delivering oxygen from the equalizing reservoir is kept steady by a pressure reducing valve. Older units cycled with a period of about 20 seconds, and supplied up to 5 litres per minute of 90+% oxygen. Since about 1999, units capable of supplying up to 10 lpm have been available.
Author: Kbclx
00:00
07:20
Recorded in my dad's bedroom with lifecam hd3000 webcam. This is a much better recording than my previous oxygen concentrator file, as i hauled my desktop into the bedroom at the other end of the apartment where the machine now is, when i was home alone. The webcam is on the bed about 3 or 4 feet from the machineat the beginning of the file you hear me flip the big switch and the machine comes on with a long on beep and thumps. I edited it to start then. At 00:1. 8 what i suspect is the water pump comes on, though i may be wrong. That's when the gurgling starts though. The machine has a small reservoir for distilled water to moisten the airflow. A cup or two lasts several daysyou'll hear various hisses and thumps in a 15. 6 second cycle as it runs. At 03:03 i flip the big switch to shut the machine off, and it bubbles and gurgles away for the rest of the file, as water i assume slowly perculates back into the reservoir, the bubbling getting quieter and quieter until it doesn't even sound like bubbling anymore, until it finally ticks to a stop. At 03:16 you hear me step as i get my foot loose from the mic cord lol. At 04:13 the furnace shuts down as a car finishes going by outside in the bass register, faint traffic noises and the furnace being the only background noises you'll hear aside from my moving around a couple times, and a faint bluejay at the end. At about 07:00 you can barely hear the machine anymore, but i could hear a faint ticking with my own ears. At 07:04 the furnace comes back on. At 07:08 you'll hear a bluejay faintly calling outside and a car going by outside after, which finishes the file at 07:20. I edited out my walking to the computer to shut the recording down. From wikipediaoxygen concentrators typically use pressure swing adsorption technology and are used very widely for oxygen provision in healthcare applications, especially where liquid or pressurised oxygen is too dangerous or inconvenient, such as in homes or in portable clinics. Oxygen concentrators are also used to provide an economical source of oxygen in industrial processes, where they are also known as oxygen gas generators or oxygen generation plants. Oxygen concentrators utilize a molecular sieve to adsorb gasses and operate on the principle of rapid pressure swing adsorption of atmospheric nitrogen onto zeolite minerals and then venting the nitrogen. This type of adsorption system is therefore functionally a nitrogen scrubber leaving the other atmospheric gasses to pass through. This leaves oxygen as the primary gas remaining. Psa technology is a reliable and economical technique for small to mid-scale oxygen generation, with cryogenic separation more suitable at higher volumes and external delivery generally more suitable for small volumes. [1]at high pressure, the porous zeolite adsorbs large quantities of nitrogen, due to its large surface area and chemical character. After the oxygen and other free components are collected the pressure drops which allows nitrogen to desorb. An oxygen concentrator has an air compressor, two cylinders filled with zeolite pellets, a pressure equalizing reservoir, and some valves and tubes. In the first half-cycle the first cylinder receives air from the compressor, which lasts about 3 seconds. During that time the pressure in the first cylinder rises from atmospheric to about 1. 5 times normal atmospheric pressure (typically 20 psi/138 kpa gauge, or 1. 36 atmospheres absolute) and the zeolite becomes saturated with nitrogen. As the first cylinder reaches near pure oxygen (there are small amounts of argon, co2, water vapour, radon and other minor atmospheric components) in the first half-cycle, a valve opens and the oxygen enriched gas flows to the pressure equalizing reservoir, which connects to the patient's oxygen hose. At the end of the first half of the cycle, there is another valve position change so that the air from the compressor is directed to the 2nd cylinder. Pressure in the first cylinder drops as the enriched oxygen moves into the reservoir, allowing the nitrogen to be desorbed back into gas. Part way through the second half of the cycle there is another valve position change to vent the gas in the first cylinder back into the ambient atmosphere, keeping the concentration of oxygen in the pressure equalizing reservoir from falling below about 90%. The pressure in the hose delivering oxygen from the equalizing reservoir is kept steady by a pressure reducing valve. Older units cycled with a period of about 20 seconds, and supplied up to 5 litres per minute of 90+% oxygen. Since about 1999, units capable of supplying up to 10 lpm have been available.
Author: Kbclx
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