On Mon, Dec 01, 2008 at 12:38:46PM +0000, James Courtier-Dutton wrote: > It is a levels problem. > Mic captures at 24bits. > The DSP handles 24bits fine. > When the sound is passed from the DSP to the CPU only the top 16bits of > the 24bit value are passed. This accounts for the low capture levels. > The "snd_ac97_write_cache(emu->ac97, AC97_REC_GAIN, 0x0f0f);" reduces > the analogue capture headroom so is not ideal. > I think a better fix would be to add DSP code to adjust the 24bit value > into 16bits. > The current 24bit to 16bit conversion introduces about 48 dB loss. Yes, I read the similar explaining almost one and half year ago. It's very likely, that exactly you wrote to me at that time. My current point is: when nobody's going to make it "better way", perhaps could be possible to apply that "worse fix", which - actually - immediately makes the living of Audigy owner a bit easier? It seems to me, that it doesn't really make much sense "to do nothing at all - because (perhaps) one day we'll make it better". It can be fixed instantly by inserting this just one line - and then, some day, it can be improved further. What's the problem? -- pozdrawiam / regards Zbigniew Baniewski ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
