On an Audigy 2 Value SB0400 I'm unable to record from the microphone.

Sound output is working fine. I plugged the microphone into the red jack
and tried to record using audacity,
but get no response.

# arecord -l
**** List of CAPTURE Hardware Devices ****
card 0: Audigy2 [Audigy 2 Value [SB0400]], device 0: emu10k1 [ADC
Capture/Standard PCM Playback]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: Audigy2 [Audigy 2 Value [SB0400]], device 1: emu10k1 mic [Mic
Capture]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: Audigy2 [Audigy 2 Value [SB0400]], device 2: emu10k1 efx
[Multichannel Capture/PT Playback]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

# lsmod | grep snd
snd_pcm_oss            46368  0
snd_mixer_oss          14848  5 snd_pcm_oss
snd_emu10k1           110084  4
snd_rawmidi            21344  1 snd_emu10k1
snd_ac97_codec         98492  1 snd_emu10k1
snd_ac97_bus            2560  1 snd_ac97_codec
snd_pcm                78600  3 snd_pcm_oss,snd_emu10k1,snd_ac97_codec
snd_seq_device          7440  2 snd_emu10k1,snd_rawmidi
snd_timer              20360  2 snd_emu10k1,snd_pcm
snd_page_alloc          8656  2 snd_emu10k1,snd_pcm
snd_util_mem            4032  1 snd_emu10k1
snd_hwdep               8264  1 snd_emu10k1
snd                    49056  9
snd_pcm_oss,snd_mixer_oss,snd_emu10k1,snd_rawmidi,snd_ac97_codec,snd_pcm,snd_seq_device,snd_timer,snd_hwdep

# amixer controls | grep Capture
numid=8,iface=MIXER,name='PCM Capture Volume'
numid=9,iface=MIXER,name='Synth Capture Volume'
numid=17,iface=MIXER,name='Line2 Capture Volume'
numid=11,iface=MIXER,name='Mic Capture Volume'
numid=21,iface=MIXER,name='Aux2 Capture Volume'
numid=15,iface=MIXER,name='IEC958 Optical Capture Volume'
numid=19,iface=MIXER,name='Analog Mix Capture Volume'
numid=13,iface=MIXER,name='Audigy CD Capture Volume'
numid=32,iface=PCM,name='Captured FX8010 Outputs',device=2

# amixer -c 0 cset numid=11 50%,50% unmute cap
numid=11,iface=MIXER,name='Mic Capture Volume'
  ; type=INTEGER,access=rw---,values=2,min=0,max=100,step=0
  : values=50,50

# amixer -c 0 cget numid=19
numid=19,iface=MIXER,name='Analog Mix Capture Volume'
  ; type=INTEGER,access=rw---,values=2,min=0,max=100,step=0
  : values=50,50

I run this while talking into the microphone:

# arecord -d 5 -N -vvv foobar.wav
Recording WAVE 'foobar.wav' : Unsigned 8 bit, Rate 8000 Hz, Mono
Plug PCM: Linear conversion PCM (S16_LE)
Its setup is:
  stream       : CAPTURE
  access       : RW_INTERLEAVED
  format       : U8
  subformat    : STD
  channels     : 1
  rate         : 8000
  exact rate   : 8000 (8000/1)
  msbits       : 8
  buffer_size  : 2048
  period_size  : 1024
  period_time  : 128000
  tick_time    : 1000
  tstamp_mode  : NONE
  period_step  : 1
  sleep_min    : 0
  avail_min    : 1024
  xfer_align   : 1024
  start_threshold  : 1
  stop_threshold   : 2048
  silence_threshold: 0
  silence_size : 0
  boundary     : 4611686018427387904
Slave: Hardware PCM card 0 'Audigy 2 Value [SB0400]' device 0 subdevice 0
Its setup is:
  stream       : CAPTURE
  access       : MMAP_INTERLEAVED
  format       : S16_LE
  subformat    : STD
  channels     : 1
  rate         : 8000
  exact rate   : 8000 (8000/1)
  msbits       : 16
  buffer_size  : 2048
  period_size  : 1024
  period_time  : 128000
  tick_time    : 1000
  tstamp_mode  : NONE
  period_step  : 1
  sleep_min    : 0
  avail_min    : 1024
  xfer_align   : 1024
  start_threshold  : 1
  stop_threshold   : 2048
  silence_threshold: 0
  silence_size : 0
  boundary     : 4611686018427387904
Max peak (1024 samples): 0x00000001 #                    0%
Max peak (1024 samples): 0x00000001 #                    0%

No sound input appears to be detected. When I play the file, I get a
low-level static:

# aplay foobar.wav
Playing WAVE 'foobar.wav' : Unsigned 8 bit, Rate 8000 Hz, Mono

Suggestions? Am I looking at the wrong channels?

David







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