I'm trying to record audio via a microphone, but I can't seem to get
alsa to see the sound input.
I try something like 'arecord -d5 test.wav' and I only get:
$ od test.wav
0000000 044522 043106 116144 000000 040527 042526 066546 020164
0000020 000020 000000 000001 000001 017500 000000 017500 000000
0000040 000001 000010 060544 060564 116100 000000 100200 100200
0000060 100200 100200 100200 100200 100200 100200 100200 100200
*
0116140 100200 100200 100200 100200 100200 100200
0116154
I can hear the microphone input via the speakers so the mic is working.
The HW looks like:
$ arecord -L
null
Discard all samples (playback) or generate zero samples (capture)
default:CARD=PCH
HDA Intel PCH, ALC1150 Analog
Default Audio Device
sysdefault:CARD=PCH
HDA Intel PCH, ALC1150 Analog
Default Audio Device
front:CARD=PCH,DEV=0
HDA Intel PCH, ALC1150 Analog
Front speakers
surround21:CARD=PCH,DEV=0
HDA Intel PCH, ALC1150 Analog
2.1 Surround output to Front and Subwoofer speakers
surround40:CARD=PCH,DEV=0
HDA Intel PCH, ALC1150 Analog
4.0 Surround output to Front and Rear speakers
surround41:CARD=PCH,DEV=0
HDA Intel PCH, ALC1150 Analog
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=PCH,DEV=0
HDA Intel PCH, ALC1150 Analog
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=PCH,DEV=0
HDA Intel PCH, ALC1150 Analog
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=PCH,DEV=0
HDA Intel PCH, ALC1150 Analog
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
$ arecord -l
**** List of CAPTURE Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC1150 Analog [ALC1150 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 2: ALC1150 Alt Analog [ALC1150 Alt
Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
I've tried the front and back mic jacks and have everything in alsamixer
up to 100% and not muted. aplay works fine.
I tried arecord on another LFS system and it works OK.
Any ideas?
-- Bruce
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