A NOTE has been added to this issue. ====================================================================== <https://bugtrack.alsa-project.org/alsa-bug/view.php?id=2076> ====================================================================== Reported By: jaime Assigned To: ====================================================================== Project: ALSA - driver Issue ID: 2076 Category: PCI - cs46xx Reproducibility: always Severity: minor Priority: normal Status: new Distribution: Kernel Version: ====================================================================== Date Submitted: 04-26-2006 16:28 CEST Last Modified: 06-29-2006 09:08 CEST ====================================================================== Summary: arecord gives silence Description: IBM Thinkpad T21 with Cirrus Logic CS 4614/22/24 [CrystalClear SoundFusion Audio Accelerator] (rev 01). alsamixer correctly mixes the inputs over to the line out (I can hear microphone in and line in successfully mixed) but arecord gives silence. I've tried using a usb soundcard on the same machine, and everything works fine there, so I think this is only the snd-cs46xx driver. I'm not sure what other info is useful - please let me know. Thank you. ====================================================================== ---------------------------------------------------------------------- Raymond - 06-29-06 03:30 ---------------------------------------------------------------------- cat /proc/asound/pcm Try the following test and post the output including the setup line output by arecord arecord -v -Dhw:0,0 -f cd test1.wav arecord -v -Dplughw:0,0 -f cd test2.wav arecord -v -f cd test3.wav ---------------------------------------------------------------------- atler - 06-29-06 09:08 ---------------------------------------------------------------------- First two methods work fine, third one fails. Here comes complete output: % cat /proc/asound/pcm 00-02: CS46xx - IEC958 : CS46xx - IEC958 : playback 1 00-01: CS46xx - Rear : CS46xx - Rear : playback 31 00-00: CS46xx : CS46xx : playback 31 : capture 1 % arecord -v -Dhw:0,0 -f cd test1.wav Recording WAVE 'test1.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo Hardware PCM card 0 'Sound Fusion CS46xx' device 0 subdevice 0 Its setup is: stream : CAPTURE access : RW_INTERLEAVED format : S16_LE subformat : STD channels : 2 rate : 44100 exact rate : 44100 (44100/1) msbits : 16 buffer_size : 16384 period_size : 512 period_time : 11609 tick_time : 4000 tstamp_mode : NONE period_step : 1 sleep_min : 0 avail_min : 512 xfer_align : 512 start_threshold : 1 start_threshold : 1 stop_threshold : 16384 silence_threshold: 0 silence_size : 0 boundary : 1073741824 % arecord -v -Dplughw:0,0 -f cd test2.wav Recording WAVE 'test2.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo Plug PCM: Hardware PCM card 0 'Sound Fusion CS46xx' device 0 subdevice 0 Its setup is: stream : CAPTURE access : RW_INTERLEAVED format : S16_LE subformat : STD channels : 2 rate : 44100 exact rate : 44100 (44100/1) msbits : 16 buffer_size : 16384 period_size : 512 period_time : 11609 tick_time : 4000 tstamp_mode : NONE period_step : 1 sleep_min : 0 avail_min : 512 xfer_align : 512 start_threshold : 1 stop_threshold : 16384 silence_threshold: 0 silence_size : 0 boundary : 1073741824 % arecord -v -f cd test3.wav Recording WAVE 'test3.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo Plug PCM: Rate conversion PCM (48000, sformat=S16_LE) Its setup is: Plug PCM: Rate conversion PCM (48000, sformat=S16_LE) Its setup is: stream : CAPTURE access : RW_INTERLEAVED format : S16_LE subformat : STD channels : 2 rate : 44100 exact rate : 44100 (44100/1) msbits : 16 buffer_size : 7526 period_size : 470 period_time : 10666 tick_time : 0 tstamp_mode : NONE period_step : 1 sleep_min : 0 avail_min : 470 xfer_align : 470 start_threshold : 1 stop_threshold : 7526 silence_threshold: 0 silence_size : 0 boundary : 986447872 Slave: Direct Snoop PCM Its setup is: stream : CAPTURE access : MMAP_INTERLEAVED format : S16_LE subformat : STD channels : 2 rate : 48000 exact rate : 48000 (48000/1) msbits : 16 buffer_size : 8192 period_size : 512 period_time : 10666 tick_time : 0 tstamp_mode : NONE period_step : 1 sleep_min : 0 avail_min : 512 xfer_align : 512 start_threshold : 1 stop_threshold : 8192 silence_threshold: 0 silence_size : 0 boundary : 1073741824 Hardware PCM card 0 'Sound Fusion CS46xx' device 0 subdevice 0 Its setup is: stream : CAPTURE access : MMAP_INTERLEAVED format : S16_LE subformat : STD channels : 2 rate : 48000 exact rate : 48000 (48000/1) msbits : 16 buffer_size : 8192 period_size : 512 period_time : 10666 tick_time : 4000 tstamp_mode : NONE period_step : 1 sleep_min : 0 avail_min : 512 xfer_align : 512 start_threshold : 1 stop_threshold : 1073741824 silence_threshold: 0 silence_size : 0 boundary : 1073741824 Issue History Date Modified Username Field Change ====================================================================== 04-26-06 16:28 jaime New Issue 05-02-06 18:11 tiwai Note Added: 0009568 05-04-06 12:11 jaime Note Added: 0009613 05-08-06 12:14 atler Note Added: 0009645 05-24-06 14:03 fuman Issue Monitored: fuman 06-29-06 03:29 Raymond Note Added: 0010638 06-29-06 03:30 Raymond Note Edited: 0010638 06-29-06 09:08 atler Note Added: 0010642 ====================================================================== Using Tomcat but need to do more? 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