On Mon, Mar 12, 2007 at 12:28:00PM +0100, Takashi Iwai wrote: > At Mon, 12 Mar 2007 00:24:36 +0100, > Rask Ingemann Lambertsen wrote: > > > I tried to include u-law support, but it doesn't sound right and playback > > speed is about one third of what it should be. I could really use some > > documentation here. I'll remove it before submitting a final patch if I > > don't get it to work. > > OK. I never got u-law or a-law to work. I tried various ADPCM formats which gave correct playback speed, but much noise. There seems to be a Media Vision ADPCM format, which is probably what the Jazz16 wants, but I have no information about that format. FWIW, the playback_format/capture_format values I've tried are: #define SB_DSP_ALAW_OUTPUT_AUTO 0x1F #define SB_DSP_ALAW_INPUT_AUTO 0x2F #define SB_DSP_ULAW_OUTPUT_AUTO 0x7f #define SB_DSP_ULAW_INPUT_AUTO 0x8f #define SB_DSP_ADPCM_OUTPUT_AUTO 0x7C+1 #define SB_DSP_ADPCM_INPUT_AUTO 0x8C+1 > > Setting the irq of the MPU-401 port requires the SB part to be active and > > even worse, DSP commands need to be sent. Would it be better to just use the > > MPU-401 port without an irq and avoid the complexity? > > Isn't SB part already active? It's fine with non-irq version (which > uses timer) if the code gets too complicated, of course. It turned out that I can't disable just the MPU port. -- Rask Ingemann Lambertsen _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
