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Unintelligible Radio Chatter

Overall rating (12 ratings)
unfa

August 27th, 2014

Follow
Sound effects > Experimental
Noise

It's my voice processed with Audacity's Nyquist prompt code:

return s * osc-pulse(10000, 0)

Whitch tries to FM-encode the voice using a square wave as the carrier.

Severe aliasing occurs, because the signal isn't bandlimited before encoding. And this aliasing is what makes this so cool.

Sound illegal or offensive? Flag it!
10kHz
aliasing
AM
Amplitude-Modulation
Audacity
chatter
distorted
distortion
incomprehensible
male
Nyquist
PAM
Pulse-Amplitude-Modulation
radio
speak
speaking
talk
talking
unintelligible
ZoomH2

Type

Flac (.flac)

Duration

0:43.072

File size

2.9 MB

Sample rate

48000.0 Hz

Bit depth

16 bit

Channels

Mono

Comments
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yakubova-studio

3 years, 11 months ago

Enjoyed the track, used it along two others here:
https://youtu.be/CBEgkhqH9Kg
The video is scheduled to appear on December 20, 2021, at 12pm.
Thank you!

T
the_Skywalker

6 years, 3 months ago

cool.

unfa

6 years, 6 months ago

I've listened to the original after 5 years. This is a fun way to actually "encrypt" an audio message. The encryption key is the frequency at which it was modulated. Though it's not a strong encryption, as the frequency can probably be deduced from the encrypted audio itself.

I am amazed that the original was revealed without any artifacts or problems.

A
aleckai

9 years, 10 months ago

Hey there, unfa! We used this great sound for our latest project, a Star Wars fan film! You'll definitely recognize it =D Thanks so much! Here’s the link: https://youtu.be/q7hbkH1CBfI

S
sonoide

10 years, 8 months ago

Gracias!

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  1. 630 downloads
  2. 8 comments
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