[sdiy] Digital noise generation

Scott Gravenhorst music.maker at gte.net
Tue Mar 8 17:55:33 CET 2005


Yes, the 23 bit sample sounds popcorny.  24 sounds smoother.

I await the final determination from the list's brainiacs.

Antti Huovilainen <ajhuovil at cc.hut.fi> wrote:
>Hi again
>
>I partially solved the problem. Using any two tap noise generator sounded 
>quite bad, but testing with 24 bit 4 tap generator produced much better 
>results. If anyone has insight to why this is so, please tell.
>
>I have uploaded the matlab code and example wavs to
>http://www.acoustics.hut.fi/~ajhuovil/noise/
>
>goodnoise.wav = 24 bit 4 tap noise
>badnoise.wav = 23 bit 2 tap noise
>rand.wav = matlab's internal random number generator. This one still 
>sounds slightly smoother than goodnoise.wav.
>
>Antti
>
>"No boom today. Boom tomorrow. There's always a boom tomorrow"
>   -- Lt. Cmdr. Ivanova
>

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