349 Royalty-Free Audio Tracks for "Frequency Spectrum"

Static with pops from dead air on a radio station. Starts with a drone which fades from the background.

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.

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.

High-pitched flip across the am radio dial. Good intro-type recording.

A metal key attached to a magnet with its handle only. The key bounces back and forth, when pulled back and released, and produces a nice metallic sound.

A modulated bass guitar sound.

A modulated high frequency synth created using eq and vol automation un-filtered.

High frequencies repeted sound (sound design in protools).

A simple sine wav with frequency changing according to a parabola.

Frequency modulation tone of a modular synthesizer.

Static from a radio station wireless remote.

Very strange sounds from a very high frequency.

Here is a sound that i produced in audacity by generating a tone and making the frequency very low. It sounds rather like a humming of a machine or electrical appliance! good for looping and such. Enjoy !.

A sound made for a project a few years back to sound like the whirring sound of a wind turbine.

Something i accidentally got while messing around with voxal voice changer by nch software. It was a background noise of my mom closing a door, and i decided to put it in reverse and i couldn't help but notice that it sounded like a low "whoosh" transition. So i opened it in wavepad and added echo + reverb and voila.

This is a transformation of the original recording https://freesound. Org/people/pinehadmz/sounds/369501/. For week 10 "musical piece" assignment for the audio signal processing for music applications online class. There are three layers, panned in stereo. Each syllable of each layer was randomly pitch shifted to a note in the minor scale using the harmonic plus stochastic model. Each harmonic track was thickened with extra harmonics during the synthesis process too to make it extra weird.

A wet finger rubbing on the outside edge of a crystal wine glass.

Crackle and popping from an ego one vapor cigarette device.

My heartbeat, recording with low eqing and a shure sm58. There's some moving of a microphone and a little bit of breathing. Towards the end i take a sample of my computer.

Interference is a interesting phenomenon. I blow a bass tone and add my own voice, first i adjust my voice to same wavelength as the instrument, then i change my voice linearily, and you can follow how you get a 3rd tone, which is either a+b or a-b.

These sci-fi synth sweeps were created by manipulating white noise with filter sweeps and other effects and then using noise reduction to remove the underlying white noise. You would need to pick through them and cut them up, but they can be useful for sound designing light graphic elements that move around and animate on and off.

Poorly tuned am station with several signals battling to come through at the 1600 khz setting.

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.

A short sound sample of keys being handled causing it to rustle.

Abstract, ascending "tone"- one oscillator frequency modulated by a sample and hold module- done using synfactory/studiofactory software.

Recording of an empty radio frequency.

Nighttime radio static at the am radio band setting 1400.

The jumble of competing distant signals at night at 1290 on the am radio dial.

Low frequency waveform.

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.

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.

The sound effect of 75 hz on a yamaha keyboard.

This kind of noise generates linearly interpolated random values at a certain frequency. In this example the frequency is 100hz. The algorithm for this noise was created two years ago by myself in c++, as an imitation of noise generators in supercollider 2.

As a homage to freesound. Org for being a member for over 7 years under the name "djeuphoria", i present the freesound community with some unique sounds i've created recently using loads of different plugins and synthesizers that i've been acquiring over the years that has slowly turned into a massive collection. So with that being said i'm going to be periodically adding sounds to my "dream sample pack" so you can all hear the sounds i've been creating under my new nickname "dream", thank you all for the downloads, its awesome to see how terrible my sound quality was and how much i've improved from that, enjoy these awesome synth sounds i've engineered, cheers. -dreamp. S, most of the melodic sounds are recorded in the key of c for convenience and all foley sounds are recorded with a zoom h4 at 44khz.