Subject: Re: [linux-audio-dev] [ann] unmatched - a LADSPA amp tone
From: Steve Harris (S.W.Harris_AT_ecs.soton.ac.uk)
Date: Thu Oct 24 2002 - 12:38:56 EEST
On Thu, Oct 24, 2002 at 10:05:49 +0100, Lea Anthony wrote:
> Also, I must ask this, how much of the LAD stuff is designed with 32bit
> audio in mind? I ask because that's what I work in, then dither down to
> 16bit when mastering.
My code it is all at least 32bit internally (much is 64bit) and all the
I/O is 32bit. IMHO working with anything else on modern cpus is silly.
Dithering down can be done as the last step in a jack process (if you have
a 16bit card) and you have the choice of rectangular (crap, very fast)
triangular (OK, fast) or shaped w/ error feedback (expensive but good).
I strongly recommend some sort of dithering if you're monitoring or
recording offf a 16bit card. I'l commit some changes later today that make
it more efficient.
- Steve
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