723 Royalty-Free Audio Tracks for "Frequency"

This is the sound of the fire alarm that is inside my graduate housing complex. It is very loud. Recorded on an edirol r-09.

Sweeping through frequencies of an old analogue radio, german radio stations. Recorded with tascam-dr40.

This is two soliton combs (sech pulses) with a beat frequency for half-bar oscillation at 130 bpm. Use it in techno. It was generated directly from python code.

Ableton. Snare rim + arp with multiple ping pong delays. Transpose form +47 to -47. I just told you my secrets.

This is an old glass bottle tilted from its vertical axis, so that it rocks back and forth with increasing frequency until it is still. Recorded on an iphone.

Little soundeffect which reminds of old videogame sounds. If you like this make sure to check my soundcloud: http://soundcloud. Com/beverlyhillsboy cheers!.

Section of am radio static with a high pitched sing in it, from the 580 kilohertz mark of the bandwidth.

Something for the acid generation. Loops perfectly, twisted in realtime, 113bpm, do what you want with it, enjoy ^_^.

You can use this music in your videos. This sound was created with layering and frequency processing. Bpm 110key f# maj.

Made from a tom drum i created with xfer serum in reaper. Rendered the instrument as audio, then, sampled a small section of the tom and looped it infinitely to create a static frequency. Then i added the reapitch vst and created a smooth automation curve down to -24 semitones. Lastly, i added a short fade in and long fade out.

Sound of a high speed train leaving lleida station. A kind of glissando or frequency sweep is produced when the train increases his speed.

Sweeping through frequencies with an old analog radio, german radio stations. Recorded with tascam dr-40.

A few notes from a flute were transformed using the hps model with frequency stretching. A sci-fi 'spaceship' sound is produced. The track is 44100 = fs, mono.

Ambience field-recording in windy forest. I've made pseudo windscreen from my t-shirt :). Some mic rumbles on low frequency. Hp filter may help.

A less harsh, almost tickling of static pops from the right-hand side of the fm radio dial, interspersed with harsh interference (source unknown). Recorded from a digital tuner.

Preset i made in reason for thor. This loop is an arpeggiated synthwith frequency modulation and somereverb. Hope you enjoy :).

Moving the ear piece of a phone, waiting for a number to be dialed, towards a microphone creating a shift in frequency.

Static from the 810 khz frequency of the am radio band recorded from a digital receiver. Has a sort of submarine suggestive hollow quality.

Frequency modulated diy oscillator, see https://youtu. Be/rpjbae6c3z0. Recorded using an iphone, through a cheap marshall ms-2c mini-amp. Cheap and smelly.

Tuning the radio at some stations, it contains hiss and noise characteristic of old radios when you search for available stations.

Shortwave wide-band digital emission recorded on july 15, 2014 at 15:17 utc in am mode using 2 instances of the online remote controllable short-wave receiver located at the amateur radio club etgd at the university of twente the netherlands. Left channel was recorded below the central frequency, at a frequency of 10187khz, right channel was recorded above the central frequency, at 10191khz. This was an experiment to see if selective fading would create stereo effects, as the lower frequency part of the transmission would be heard better in the left channel, and the higher frequency component would be heard better on the right. I used goldwave to put the separate recordings into 2 channels of the same file, after i synched the recordings by ear at 1/16 playback speed using a set of 2 particularly strong lightning static crashes as a guide, trimming off everything that came before the first strike in both original recordings, then inserting silence in the range of a few milliseconds until the stereo separation was as close to zero as i could get it. I wasn't as successful at that as i've been with experiments with voice recordings from simultaneous broadcasts on 2 wavelengths that i haven't posted here.

An old desktop computer running. Mic a bit too close to the ventilator and resting on the cabinet. High frequency hard drive noise clearly annoying.

The sound created when scanning radio channels that sounds of a high frequency tone who's pitch changes from low, to high, to low as you scan over it.

Here is some am radio sound recorded from my laptop's soundcard whilst surfing twente university websdr.

Pounding the back wall of a uhaul truck cab from the inside with my fist. Sounds great when you add reverb. Recorded with a tascam dr-40.

Recorded with original zoom h2, with high frequency boost.

Buzzy patch of static from the am band of the radio dial. Slight flipping of the dial through the area adjusts the sound.

A middle-frequency note that sounds like a swiss alpenhorn or person blowing into a conch shell. Made by blowing into a short section of pvc pipe.

*1 step in 17 equal temperament on C = D♭ (Easley Blackwood's notation). Equal-tempered: 21/17:1 = 70.59 cents. MIDI pitch bend: 75,54 17 tone equal temperament is the tempered scale derived by dividing the octave into 17 equal steps (equal frequency ratios). Each step represents a frequency ratio of 21/17, or 70.6 cents.

This sound is 50 ms, 2000 hz pure tone with double linear fadeout through it's whole length. Sampling rate of 8 khz is already an overkill (nyquist frequency is at 4 khz, while all energy of this sound is present in narrow 2 khz frequency range). Created with audacity for use with ardour 3, a free and opensource daw for linux and mac (http://ardour. Org).

Created by cranking a filter to max resonance, adding distortion, then slowly sweeping the frequency control on a bit crusher.

A very harsh section of static with periodic interference (source unknown) from the far right-hand side of the fm radio dial, at 106. 7 mhz. Recorded from a digital tuner.

This is a loop that i made with a homemade synth. It is an arpeggiation of a few chords. This onehas no frequency fading.

Synthesized soundit's a regular sine with a fast, chaotic pitch modulation9 notes, first note on each octavesurge xt synthesizer.

Part of a shortwave radio teletype recording, made with a dx394 high frequency receiver. The signal is civilian, but could be used as a military sound effect.

Ocean-like sub frequency information. Can be used as a layer for many purposes.

Hps model was used to transform a few notes from a flute. Frequency stretching was used without timbre preservation. Has an old analog cassette/lp vibe. Mono track at 44100 = fs.

This is the sound of wind as generated by my naturalnoisegen program. Naturalnoisegen uses several timed generators to produce complex natural noises. In this case, 80 low-frequency generators were used.

Could be used as moving sounds for something large or machine-like. Produced by manipulating this sound: http://www. Freesound. Org/people/soundcollectah/sounds/158479/.

4x4 pole allpass allows to have a strident sound and retro ranger allows to have a rounded up and parasitic effect. Caracteristics of retro ranger : average stall = 2,5 ms and flange frequency = 1hz.

Low pitch static which reminds me of 1950s sci-fi television. Created by filtering a static wave from an analog radio then slowing the pitch and adding a mechanization effect.

Handy h2 zoom 4ch recording of supermarket checkout line. Hum is from refrigerator units nearby. Try using eq to rolloff the low end frequency hum of the refrigerator.

Unknown local qrm in qth jn79ek. Frequency 3522 khz, day time. Strength: s9+20 db in peaks. It looks like a terrible spark-telegraph. . . Any traffic is impossible during this qrm.

Experimenting with reverb and frequency on my "meaty gunshot. Wav" sfx resulted in this; hopefully this conveys the audible sense that the gunshot is being fired underwater. Created and edited with audacity.

A bunch of birds (sparrows, blackbirds, swallows and some more) singing in glorious stereo. No low frequencies, just birds.

User name fmagrao's sound 80761__fmagrao__siren was stretched, put in a sampler and played as described but of varying duration and it would appear that there is an optimum frequency range for these sirens. I will create a lower frequency version in due course and a foghorn/siren hybrid. The sound features on the following track along with other uncredited sounds downloaded from this site and i am genuinely grateful for all those contributions. Https://soundcloud. Com/klaxonite/klaxonite-3-190415.

Field recording of a summer afternoon (28th june, ~20:30) in berlin lichtenberg. The recorder (edirol r-09rh) was set in a very high building, therefore the sound consists mainly of ambient noise, eventually with subtle concrete sounds (birds, childs, dogs, sirens,. . . ). The audio is unfiltered, so it's dominated by low-frequency energy. Filter as you wish :). (the web preview seems to have some high frequency artifacts. Download the wav file to get it on full quality).

Violet aka purple noise power density increases 6 db per octave with increasing frequency over the frequency range. It is also known as differentiated white noise, due to its being the result of the differentiation of a white noise signal. I created this by looping http://en. Wikipedia. Org/wiki/file:purple_noise. Ogg. Which is copylefted, however i claim that they can't be protected based on http://en. Wikipedia. Org/wiki/threshold_of_originality (check language sidebar on wikipedia page for other jurisdictions).

Two shots of a hollow-sounding high-frequency short-delay flanger on a synth chord. First is firmer, second has more of a suck to the attack.

An e50 morphing terrarium (digital) applying slow sweep filter/freq modulation of 8 voices. Cwejman vco-2rm (analog), synthesis technology e340 cloud generator (digital), and two lifewire audio frequency generators (analog). Mannequins three sisters vcf.