Re: [linux-audio-dev] acid, linux

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Subject: Re: [linux-audio-dev] acid, linux
From: Paul Barton-Davis (pbd_AT_Op.Net)
Date: to joulu  02 1999 - 10:06:24 EST


>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).

for those who don't know, one implementation of this is patented by
apogee ("softlimit"), but there i suspect that their patent covers (1)
a fairly h/w-based implementation and (2) probably only cover a particular
function.

the result is tape-like limiting. its very nice. you avoid
transient-induced clipping.

--p


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