Subject: Re: NetBSD plays .wav ultra fast
To: Nigel Reed <firstname.lastname@example.org>
From: Ignatios Souvatzis <email@example.com>
Date: 07/11/2001 22:22:01
On Wed, Jul 11, 2001 at 01:20:03PM -0500, Nigel Reed wrote:
> On Wed, Jul 11, 2001 at 01:52:12PM -0400, Lennart Augustsson wrote:
> > > Yes, it's most likely a bug in the driver for that soundchip (note the
> > > "variable rate ... not supported" message).
> > That means that the HARDWARE doesn't support variable rates.
> > To do it right you have to do sample rate conversion in software.
> > This is rather expensive to do if you want high quality.
> I have an 8bit mono .wav file at 8Khz. I don't think quality is an
> issue here, it's just that I don't want it playing back at the speed
> of light rather than the speed of sound. I'm surprised someone hasn't
> come up against this problem before.
Well, the driver should just refuse to play it at all at that speed, and
your playback application should do the conversion in userland.
(Same problem with the (currently Amiga-Only) TMS34010 driver, which is
44100 Hz only).