Radio bad signal effect?

djtoshi182's icon

Hello

I would like to create a noise and distortion like bad signal from the radio. I will connect itunes live radio streaming.
I am testing jittery static noise, but it is too clean still. Because it is live audio streaming, I am trying to trigger a Filtergraph~
Any idea to make this distorting live signal to be triggered more sofisticate way?

p.s what freq and filtered noise is more similar with actual radio's static sound?

Thanks

mr_mapes's icon

This is something I've pondered over before but using [groove~] instead of an audio input source. This patch isn't technically correct, but is capable of achieving radio-interference style results.

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djtoshi182's icon

A convolution sounds good. maybe I should mix some other variables for more subtle and condensed static distortion... Thank You.

AudioLemon's icon

It sounded like fun so I had a go. I used the hilbert~ transform for some nice ringmod, a bit of rand~ modulated with the inputs volume, add a few random clicks and a little AM modulation for ground hum kind of sound and generally messing it up. Probably overkill but it sounds like poorly tuned radio to me.

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FRid's icon
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I couldn't resist too...

djtoshi182's icon

wow distortion sounds very cool,
it seems like a real radio static sounds more like a wind-swirly sound? something like
http://www.youtube.com/watch?v=IiZhVDQdo6U
it does sounds more spatial whirlwind of lower frequency.. maybe because of radio case,
maybe should add some resonance and electronic scrachy sound..

jvkr's icon

> wow distortion sounds very cool

If you really think so, listen to this radio. It's built with maxmsp.
http://bit.ly/mtg6Ms
Anyway, I agree.

AudioLemon's icon

So I had a listen to the YouTube clip and I had another go. I think it's closer If I spent more time at it I could get it. There are a few presets but they are all with no music from sfplay~ just really about the noise.

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djtoshi182's icon

Sounds awsome. really love the hiss

bkshepard's icon