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SubjectRe: Full duplex in sound driver?
Chris Wedgwood writes:
> On Tue, Aug 25, 1998 at 03:02:13PM +1000, Richard Gooch wrote:
>
> > Alan Cox writes:
>
> > Are you saying that the samples are limited to 8 bit one way and 16
> > the other way?
>
> Yes.
>
> > Or are you just saying that there are twice as many DMA cycles in one
> > direction?
>
> No.

OK, that makes it clear.

> > I had a quick play with 8 bit voice and there was a bit of
> > distortion.
>
> For voice - 8 bits is usually sufficient. Depending on your voice
> that is.

Must be the high information content of my voice ;-)
Anyway, like I said, I didn't have time to play further. Fiddling the
recording level may yield results. The distortion wasn't awful or
anything, but I could still hear it without much effort.

As someone else said, having the DMA stream pre-encoded to 8bit ulaw
would be great.

Regards,

Richard....

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