When I do "arecord -f cd -d 10 test.wav", it appears to record. When I do "aplay -t wav test.wav", I get: "Playing WAVE 'test.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo" no sound comes out. I know I'm very close to having this working right. Any idea what's wrong?
[EMAIL PROTECTED] root]# arecord -f cd -t raw -vv /dev/null
Recording raw data '/dev/null' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo
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 : 15052
period_size : 3763
period_time : 85333
tick_time : 10000
tstamp_mode : NONE
period_step : 1
sleep_min : 0
avail_min : 3763
xfer_align : 3763
start_threshold : 1
stop_threshold : 15052
silence_threshold: 0
silence_size : 0
boundary : 986447872
Slave: Hardware PCM card 0 'VIA 8235' 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 : 16384 period_size : 4096 period_time : 85333 tick_time : 10000 tstamp_mode : NONE period_step : 1 sleep_min : 0 avail_min : 4096 xfer_align : 4096 start_threshold : 1 stop_threshold : 16384 silence_threshold: 0 silence_size : 0 boundary : 1073741824 Max peak (7526 samples): 10503 (0x2907) ####### 32% Max peak (7526 samples): 09970 (0x26f2) ####### 30% Max peak (7526 samples): 10146 (0x27a2) ####### 31%
Clemens Ladisch wrote:
Chad Paavola wrote:
Can anyone tell me a quick way to test capture with alsa?
"arecord -f cd -d 10 test.wav" will record 10 seconds. "arecord -f cd -t raw -vv /dev/null" will show the input level. If you want to use 48 kHz instead of 44.1 kHz, use "-f dat".
HTH Clemens
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