Messages in this thread | | | Date | Tue, 25 Aug 1998 17:12:14 +1000 | From | Richard Gooch <> | Subject | Re: Full duplex in sound driver? |
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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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