Giuliano Pochini wrote: > > On 01-Oct-2003 Nathaniel Gray wrote: >> My sound card uses different devices for capture (device 0) and playback >> (device 1). I have two issues with capture right now: >> >> 1. If I do something like: >> arecord -f dat -D hw:0,1 -d 5 foo.wav >> it seems to record for much longer than 5 seconds. In fact, "time >> arecord..." tells me that it goes for 10 seconds. If I then try to >> play back the result with aplay: > > Try aplay/arecord -v[vvvvvv] to see what parameters have been actually > set. You can also put printk()'s in the driver to check what's going > on.
Well before going to printk's here's the -v output: [EMAIL PROTECTED] alsa]$ arecord -f dat -D hw:0,1 -d 5 -v foo.wav Recording WAVE 'foo.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Stereo Hardware PCM card 0 'Intel 82801CA-ICH3' device 1 subdevice 0 Its setup is: stream : CAPTURE access : RW_INTERLEAVED format : S16_LE subformat : STD channels : 2 rate : 48000 exact rate : 48000 (48000/1) msbits : 16 buffer_size : 24000 period_size : 6000 period_time : 125000 tick_time : 10000 tstamp_mode : NONE period_step : 1 sleep_min : 0 avail_min : 6000 xfer_align : 6000 start_threshold : 1 stop_threshold : 24000 silence_threshold: 0 silence_size : 0 boundary : 1572864000 [EMAIL PROTECTED] alsa]$ aplay -v foo.wav Playing WAVE 'foo.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Stereo Plug PCM: Hardware PCM card 0 'Intel 82801CA-ICH3' device 0 subdevice 0 Its setup is: stream : PLAYBACK access : RW_INTERLEAVED format : S16_LE subformat : STD channels : 2 rate : 48000 exact rate : 48000 (48000/1) msbits : 16 buffer_size : 12000 period_size : 6000 period_time : 125000 tick_time : 10000 tstamp_mode : NONE period_step : 1 sleep_min : 0 avail_min : 6000 xfer_align : 6000 start_threshold : 12000 stop_threshold : 12000 silence_threshold: 0 silence_size : 0 boundary : 1572864000 Could it be possible that RW_INTERLEAVED is incorrect since playback and record are on different devices? > Why are you using different devices for capture and playback ? It's the way my card is designed. Recording from hw:0,0 doesn't work. > Perhaps it's a typo, but if capture is dev 0, you have to type > > arecord -D hw:0,0 Yes, that was a typo. Capture is device 1 and playback is device 0. Thanks, -Nathan -- >>>-- Nathaniel Gray -- Caltech Computer Science ------> >>>-- Mojave Project -- http://mojave.cs.caltech.edu --> ------------------------------------------------------- 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
