Subject: Re: [linux-audio-dev] acid, linux
From: Paul Winkler (slinkp_AT_ulster.net)
Date: to joulu 02 1999 - 12:27:56 EST
Paul Barton-Davis wrote:
>
> >2) When recording, I can use the -eaw effect (amplify w/ clip-control)
> > in the recording chain to warn about clipping.
>
> someone should implement a logarithmic/exponential clipping function
> that asymptotically approaches ((2^bits_per_sample)-1) once the sample
> amplitude exceeds ((2^bits_per_sample)-some_threshold).
Couldn't you just do this with waveshaping, using a table lookup?
Use the input as the index, and fill the table with a straight line
up to the threshold level, then some sort of curve beyond that (but
what sort of curve I guess would be the question). I know some
people are doing this in csound, though I don't know what gen
routine they use for making the table.
-- ................ paul winkler .................. slinkP arts: music, sound, illustration, design, etc. A member of ARMS -----> http://www.reacharms.com or http://www.mp3.com/arms or http://www.amp3.com/arms personal page ----> http://www.ulster.net/~abigoo
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