Hi Patrick, i found out an obvious bug there. i forgot to correct the offset value of capture destination after a minor modification. it's fixed on cvs. could you update the cvs and test whether it works?
Takashi At Wed, 03 Jul 2002 00:35:03 +0900, Patrick Shirkey wrote: > > Takashi Iwai wrote: > > Hi Patrick, > > > > At Tue, 02 Jul 2002 23:28:08 +0900, > > Patrick Shirkey wrote: > > > >>Thanks to your patch Takashi we have two people who have been able to > >>record through the quattro. > >> > >>We have both found that there is a constant repetitive peak in the > >>signal which reminds me of the problems I had with the cmipci for a > >>brief period. > >> > >>Thorsten Hass has recorded a perfect example for you which he did using > >>aplay and arecord. It is a sine wave so is easy on the ears. > >> > >>http://www.thorstenhaas.de/alsa/audio.file > > > > > > hmm, this sounds like the mismatching of packet size and copy > > destination. i heard your ogg file, and this was similar, too. > > > > under which condition were they recorded? > > with 24bit/96kHz/2ch? > > or does it happen generally on every condition? > > > > They were arecord -f cd > > > you can see the running status and condition on streamX proc file > > during playback/capture. > > > > ---- > # cat /proc/asound/card2/stream1 > M Audio USB AudioSport Quattro (tm) : USB Audio #1 > > Playback: > Status: Stop > Altset 3 > Format: S16_LE > Channels: 2 > Endpoint: 3 OUT (ADAPTIVE) > Rates: 11025, 22050, 44100, 48000 > Altset 2 > Format: S24_3LE > Channels: 2 > Endpoint: 3 OUT (ADAPTIVE) > Rates: 11025, 22050, 44100, 48000 > Altset 1 > Format: S24_3LE > Channels: 2 > Endpoint: 3 OUT (ADAPTIVE) > Rates: 88200, 96000 > > Capture: > Status: Running > Packets = 20 > URBs = 5 > Packet Size = 192 > Nominal freq = 44. 1682 Altset 3 > Format: S16_LE > Channels: 2 > Endpoint: 5 IN (SYNC) > Rates: 11025, 22050, 44100, 48000 > Altset 2 > Format: S24_3LE > Channels: 2 > Endpoint: 5 IN (SYNC) > Rates: 11025, 22050, 44100, 48000 > Altset 1 > Format: S24_3LE > Channels: 2 > Endpoint: 5 IN (SYNC) > Rates: 88200, 96000 > > ---- > > > > > > > >>He has also generated a jpeg plotted by an oscilloscope while recording > >>which I can send you if it will help. > > > > > > can you figure out how long the period of puls is? > > They are so regular you can set a use them as a metronome:) Would you > like me to have a look at the timing in an editor or is there an more > precise way to find out? > > > i guess this has relation between the status shown in the proc file > > above. > > > > > > Takashi > > > > > > > > -- > Patrick Shirkey - Boost Hardware Ltd. > For the discerning hardware connoisseur > Http://www.boosthardware.com > Http://www.boosthardware.com/LAU/guide/ > ======================================== > ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
