Arch Linux

clutch

Member

Registered: 2010-05-01

Posts: 48

USB microphon

Hey, having a problem getting my USB microphone to work.  All the alsa channels are turned up and unmuted, the correct module is in fact loaded, and it even detects the headset correctly.  It just won't play any sound.  I'm testing it with arecord -d 5 testmic.wav and it just plays back silence.  I've attached all of the ouput I can think of that's relevant, and it looks ok to me, but I'm probably missing something.  I want my front panel headphone port to remain as the default output, but use the USB mic as the input.  Any help would be awesome.  I spent 45 minutes getting Vent to work right, and then realized my mic wasn't working. 

[hush@mothership ~>] lsmod | grep snd
snd_usb_audio          85375  0 
snd_usbmidi_lib        18244  1 snd_usb_audio
snd_rawmidi            19237  1 snd_usbmidi_lib
snd_seq_dummy           1463  0 
snd_seq_oss            28792  0 
snd_seq_midi_event      5436  1 snd_seq_oss
snd_seq                50146  5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
snd_seq_device          5297  4 snd_rawmidi,snd_seq_dummy,snd_seq_oss,snd_seq
snd_pcm_oss            39189  0 
snd_mixer_oss          17106  1 snd_pcm_oss
snd_hda_codec_realtek   269269  1 
snd_hda_intel          22285  0 
snd_hda_codec          77223  2 snd_hda_codec_realtek,snd_hda_intel
snd_hwdep               6110  2 snd_usb_audio,snd_hda_codec
snd_pcm                71445  4 snd_usb_audio,snd_pcm_oss,snd_hda_intel,snd_hda_codec
snd_timer              19265  2 snd_seq,snd_pcm
snd                    57626  14 snd_usb_audio,snd_usbmidi_lib,snd_rawmidi,snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_timer
soundcore               6065  1 snd
snd_page_alloc          7249  2 snd_hda_intel,snd_pcm
usbcore               146545  5 snd_usb_audio,snd_usbmidi_lib,usbhid,ehci_hcd
[hush@mothership ~>] 

[hush@mothership ~>] ls /dev/input/by-id/
usb-0d8c_C-Media_USB_Headphone_Set-event-if03  
usb-BTC_USB_Multimedia_Keyboard-event-if01     
usb-BTC_USB_Multimedia_Keyboard-event-kbd
usb-Razer_Razer_Diamondback_Optical_Mouse-event-mouse
usb-Razer_Razer_Diamondback_Optical_Mouse-mouse
[hush@mothership ~>] 

[hush@mothership ~>] arecord -L
null
    Discard all samples (playback) or generate zero samples (capture)
default:CARD=Intel
    HDA Intel, ALC889 Analog
    Default Audio Device
front:CARD=Intel,DEV=0
    HDA Intel, ALC889 Analog
    Front speakers
surround40:CARD=Intel,DEV=0
    HDA Intel, ALC889 Analog
    4.0 Surround output to Front and Rear speakers
surround41:CARD=Intel,DEV=0
    HDA Intel, ALC889 Analog
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=Intel,DEV=0
    HDA Intel, ALC889 Analog
    5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=Intel,DEV=0
    HDA Intel, ALC889 Analog
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=Intel,DEV=0
    HDA Intel, ALC889 Analog
    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
default:CARD=default
    C-Media USB Headphone Set  , USB Audio
    Default Audio Device
front:CARD=default,DEV=0
    C-Media USB Headphone Set  , USB Audio
    Front speakers
surround40:CARD=default,DEV=0
    C-Media USB Headphone Set  , USB Audio
    4.0 Surround output to Front and Rear speakers
surround41:CARD=default,DEV=0
    C-Media USB Headphone Set  , USB Audio
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=default,DEV=0
    C-Media USB Headphone Set  , USB Audio
    5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=default,DEV=0
    C-Media USB Headphone Set  , USB Audio
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=default,DEV=0
    C-Media USB Headphone Set  , USB Audio
    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=default,DEV=0
    C-Media USB Headphone Set  , USB Audio
    IEC958 (S/PDIF) Digital Audio Output
[hush@mothership ~>]