125 Royalty-Free Audio Tracks for "Radio Frequency"

The A440 (A above middle C) tone, which is used as a general tuning standard for musical pitch. It is also broadcast by WWV, the radio station of the National Institute of Standards and Technology.

Radio scanner. Sfx conversion edited: adobe + fxs + mastered. Sound and loops freesound. Org/people/szegvari/. Musichttps://soundcloud. Com/user-174290723.

Message 1-3 are captured by nasa, but recently even other countries have registered very strong, but short signals. The receivers are masers and the frequencies are in the higher gigahz range. Message4 was from russia.

2 oscilators. One panned to the left the other to the right. Random pitch lfo bent on different rate speeds. With a bit cusher set to a certain amount, and mix to give both the crush and the original.

Sound / noise from the electromagnetic frequencies of a wifi extender. There seems to be a lot of radiation and interference from the device. Recorded with a micbooster electromagnetic pick-up into a zoom h6.

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.

Sound / noise from the electromagnetic frequencies of an iphone. There seems to be a lot of radiation and interference from such a small device. Recorded with a micbooster electromagnetic pick-up into a zoom h6.

Free! really high annoying white noise. Use it for tv and/or high disturbed signal or whatever. Ripped, recorded, worked and mixed with audacity. (mp3 - 11:39 mins).

Sound / noise from the electromagnetic frequencies of a wifi modem / router while streaming music on youtube. There seems to be a lot of radiation and interference from the device. Recorded with a micbooster electromagnetic pick-up into a zoom h6.

Sound / noise from the electromagnetic frequencies of a macbook computer while streaming music on youtube. There seems to be a lot of radiation and interference from the device. Recorded with a micbooster electromagnetic pick-up into a zoom h6.

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.

I have literally no clue what anyone would use this for, but man does it sound weird. I forgot to check which frequency i was recording at, but i was using websdr. Url here: http://websdr. Ewi. Utwente. Nl:8901/. I'd love to know what you do with this!!! no attribution needed but it'd be neat if you sent the finished product my way.

This sound is an audio file that slowly breaks up the further it is played. I recorded this with an in-built microphone, no idea what make though. I recorded this on audacity, and added gradual distortion. Warning: you may need to turn down the volume for the last 6 seconds!.

This is static actually coming from my radio but its plugged into the same cord as my tv & they are very close together. So it's actually interference. Also the proximity of my phone gives more sound (ringy static). That really awesome modulating sound is the moment between clicking the on button & the picture coming on the screen. 2nd try was better after i adjusted the tuner a bit.

The end result of plugging your tascam dr-05 recorder into the auxiliary output of my chevrolet aveo's car stereo: pure auditory madness!. Feel free to use this sound for whatever projects or pure enjoyment that you see fit. Have a blessed day!.

I like to listen to static (often actually) and it actually shifts a lot through out the day. So i heard some cool ringy stuff. . & decided to sweep through the am band. . . And actually touching the screen of my cell made the static louder. Sounds like a synth.

Two sennheiser g3 transmitters were set for the same frequency; one of them was transmitting a previous interference recording from my macbook p2 phone output, the other one had no input;the receptor was connected to loudspeakers; the interference would vary as i moved each transmitter around. I recorded the loudpeakers output through the macbook built-in microphone, on audacity. This is a specially noisy part i exported. Not a pretty sound, but may be useful.

Qrm listened in am mode on 80 m band in my qth jn79ek. If i use cw mode listening and narrow filter, the qrm is mostly worse. Strength: peaks s9+40 db. Sometimes any traffic impossible. From -41st sec. Of record is possible to heard my tuning around frequency.

This is the companion audio to the article "modify your monitor audio" appearing on w1zy's substack account. In it, we hear what happens when you mix through a soundboard the audio from a ham radio transmitter's "monitor" output and a second receiver dialed onto the transmitter's output frequency. When the two are mixed, we hear a heterodyning between the external receiver and the transmitter monitor audio sources. By adjusting the receiver's frequency to that of the transmitted signal, we can zero-beat the two audio sources together producing a "flange" effect derived from analog devices. Non-ham audio enthusiasts might find this clip interesting since it is producing this artifact not through some plug-in, but through use of "legacy" analog equipment.

Playing around with the excellent tuner at http://websdr. Ewi. Utwente. Nl:8901/. The website even has a recording button! this version is the same as "shortwave-sweep-and-beeps. Wav" except here i have limited it with a threshold of 10db, which decreases dynamic range but also makes it louder overall.

10119 khz 2011-oct-27-1400-utc station clicking over the band. Clicks noted in 10114-10123 khz range. His equipment was old czechoslovak army transmitter rs-41 (about 1965 year). Added frequency marks at -45, -27 and -10 sec. Of the record. I know that rs-41 is clicking because i have the same transmitter at home. But later found that also ft-897 receiver is often the source of phantom clicks. . .

Remix of wierd chimes. Wavhttp://freesound. Org/people/kwahmah_02/sounds/250253/which was a recording of a shortwave broadcast in am mode received in usb mode 1khz off frequency. I used goldwave's mechanize feature at 10000khz, then applied low pass filter at 10000 khz to filter out the newly created upper sideband, then i used mechanize again at 9000 khz, which tuned in the recording just like if i had a tuneable receiver.

Ringmodulated inversion of my speech from the file https://freesound. Org/people/kb7clx/sounds/648443/ invertedspeechcq. Wav. I took the raw recording and used goldwave's mechanize effect to translate my voice to a center frequency of 14khz. I then demodulated it first at 10. 6 and then 10. 2khz meaning that what comes out is essentially the opposite sideband, offset by 3. 4 and 3. 8khz respectively. 3khz just didn't sound as good. The first i filtered with a low pass of 2. 9khz, the second was filtered to below 3. 4khz to emulate a communications receiver passband. I am speaking upside down as described in this video. Https://www. Youtube. Com/watch?v=q_ykxzcbh-g beginning at 00:03:16. Being blind i can't see their diagram, but i've got my own by ear intuitive method, keeping in mind that oo and ee are farthest from each other, all other vowells get closer the closer they are to the middle of the human voice frequency range. I say: huhlay sue quee, sue quee, sue quee do ux. Cahlloong sue quee sue quee sue quee do ux. The ay in huhllay is like when a spanish speaker says béisbol (baseball). The a in cahlloong is like the a in cat if you're opening wide for the doctor. The oo is like the oo in book. Listen to the other file and you'll hear: hello cq cq cq dx. Calling cq cq cq dx.

Non-functional tube radio warming up, making a loud 60hz hum with lots of harmonics. As a bonus it clicks off at the end. Zenith consoltone. Only because the faq says so: electro voice n/d 257a through impedance transformer into crappy gigabyte motherboard realtek high definition audio. 16bits, processed at 32bits. Audacity sound editor and/or driver wouldn't record mic level so it was very noisy after amplification. Filtered with a (mathematically equivalent) fft constructed whopping 64k length zero phase filter (blackman window) with 5 wavelength width bandpass at each harmonic from 60hz to 5,520hz. For some reason a fraction of some of the harmonics didn't get through so did another pass on the residual noise and mixed that in. Near the beginning there was a sort of brief duplicate signal that descended in pitch so it didn't make it through the filter. I added that bit in. Attenuated frequencies above 3. 6khz because they are pretty much noise, but removing them didn't sound right. Cleaned up the beginning a bit in various ways, cut it down to 15 sec and carefully appended the unfiltered "click" onto the end, which i denoised 12db with audacity's noise reduction.

This is an updated (improved is debatable) version of my previous electric contact stun gun firing sound, except longer and without peaking. Oh and higher sampling rate so you can hear all the higher frequencies better when you pitch it down. You'll immediately notice it sounds like the boring buzz of a bee. Oh well, not like you'll get a lightning storm. That's about it. Don't forget to have fun. Copy pasta---also commonly and incorrectly referred to as a "taser" which is on the same level as calling a magazine a "clip". See google for more info. I can't help that it sounds like a bee. Also if it's too short, you'll have to make it longer in your daw. Uses (apart from videos that involve a stun gun or maybe a real taser brand taser): magic lighting zaps? a game show buzzer?. Possible vst modifications. Reverb: sound impulses for speakers. Distortion (guitar style): military style radio noise. Chorus/flange: science sounding things. Pitch: at -30 semitones you get some low pitched sound similar to a airsoft aeg which may be ideal for montage airsoft videos where piles of tokyo marui m4s traditionally muffled by the gopro waterproof case. // at -45 semitones you resemble gun fire at a distance. Mathematically at 10 rps (600 rpm) you could use this as a sit in for a distant fired ak-47 rifle ideal for video games, war movies, mods, etc. Apply a resonant filter and some reverb for appropriate outdoor acoustics. And nobody will know your distant machine gun sound was a civilian stun gun except for us semi colon right parenthesis. Or you could also apply ringmod at ~9000 hz to simulate ear ringing for those ptsd scenes. Or some gau-8 avenger. Trimming + looping + pitch: if you can loop this properly in a daw you could even create a saw style bass for electronic dance music.