LQ Newbie
Registered: Mar 2006
Location: Melbourne
Distribution: arch
Posts: 3
Rep:
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arecord: recording in left-channel only
The problem:
I cannot enable recording in the right-channel using arecord.
I recorded using arecord -f dat -d 20 -D hw:0,0 test.wav.
Output in Left channel is fine. Output from right channel is 'Mic' (ie.
I record my typing and the playback of the recording through the speaker.
I have disabled Mic as a capture source so I do not know why this is happening.)
I initially thought there was a physical problem with the turntable.
But I get the same effect if I record from CD.
Hardware configuration:
-Turntable connected to amp (turntable plugged into 'phono' on amp)
-LineOut of computer connected to TapeIn of amp
-TapeOut of amp connected to LineIn of computer
Sound card installed on computer (cat /proc/asound/cards):
0 [nForce2 ]: NFORCE - NVidia nForce2
NVidia nForce2 with ALC650F at 0xe9080000, irq 16
Sound modules loaded (cat /proc/modules|grep snd)
snd_intel8x0 30620 3 - Live 0xf8c08000
snd_ac97_codec 95136 1 snd_intel8x0, Live 0xf9464000
snd_ac97_bus 2176 1 snd_ac97_codec, Live 0xf8bb3000
snd_pcm_oss 50848 0 - Live 0xf9493000
snd_mixer_oss 17920 2 snd_pcm_oss, Live 0xf90fc000
snd_pcm 84100 3 snd_intel8x0,snd_ac97_codec,snd_pcm_oss, Live 0xf947d000
snd_timer 22148 1 snd_pcm, Live 0xf8bf4000
snd 49124 10 snd_intel8x0,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer, Live 0xf910c000
soundcore 8160 2 snd, Live 0xf8bb5000
snd_page_alloc 8840 2 snd_intel8x0,snd_pcm, Live 0xf8bf0000
amixer settings:
Simple mixer control 'Master',0
Capabilities: pvolume pswitch pswitch-joined
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 28 [90%] [on]
Front Right: Playback 28 [90%] [on]
Simple mixer control 'Master Mono',0
Capabilities: pvolume pvolume-joined pswitch pswitch-joined
Playback channels: Mono
Limits: Playback 0 - 31
Mono: Playback 28 [90%] [off]
Simple mixer control '3D Control - Center',0
Capabilities: volume volume-joined
Playback channels: Mono
Capture channels: Mono
Limits: 0 - 15
Mono: 13 [87%]
Simple mixer control '3D Control - Depth',0
Capabilities: volume volume-joined
Playback channels: Mono
Capture channels: Mono
Limits: 0 - 15
Mono: 13 [87%]
Simple mixer control '3D Control - Switch',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [off]
Simple mixer control 'PCM',0
Capabilities: pvolume pswitch pswitch-joined
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 25 [81%] [on]
Front Right: Playback 25 [81%] [on]
Simple mixer control 'Surround',0
Capabilities: pvolume pswitch
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 26 [84%] [off]
Front Right: Playback 26 [84%] [off]
Simple mixer control 'Surround Down Mix',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [off]
Simple mixer control 'Surround Jack Mode',0
Capabilities: enum
Items: 'Shared' 'Independent'
Item0: 'Independent'
Simple mixer control 'Center',0
Capabilities: pvolume pvolume-joined pswitch pswitch-joined
Playback channels: Mono
Limits: Playback 0 - 31
Mono: Playback 26 [84%] [off]
Simple mixer control 'Center/LFE Down Mix',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [off]
Simple mixer control 'LFE',0
Capabilities: pvolume pvolume-joined pswitch pswitch-joined
Playback channels: Mono
Limits: Playback 0 - 31
Mono: Playback 26 [84%] [on]
Simple mixer control 'Line',0
Capabilities: pvolume pswitch pswitch-joined cswitch cswitch-joined cswitch-exclusive
Capture exclusive group: 0
Playback channels: Front Left - Front Right
Capture channels: Front Left - Front Right
Limits: Playback 0 - 31
Front Left: Playback 26 [84%] [on] Capture [on]
Front Right: Playback 26 [84%] [on] Capture [on]
Simple mixer control 'CD',0
Capabilities: pvolume pswitch pswitch-joined cswitch cswitch-joined cswitch-exclusive
Capture exclusive group: 0
Playback channels: Front Left - Front Right
Capture channels: Front Left - Front Right
Limits: Playback 0 - 31
Front Left: Playback 26 [84%] [off] Capture [off]
Front Right: Playback 26 [84%] [off] Capture [off]
Simple mixer control 'Mic',0
Capabilities: pvolume pvolume-joined pswitch pswitch-joined cswitch cswitch-joined cswitch-exclusive
Capture exclusive group: 0
Playback channels: Mono
Capture channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono: Playback 26 [84%] [off]
Front Left: Capture [off]
Front Right: Capture [off]
Simple mixer control 'Mic Boost (+20dB)',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [off]
Simple mixer control 'Mic Select',0
Capabilities: enum
Items: 'Mic1' 'Mic2'
Item0: 'Mic2'
Simple mixer control 'Video',0
Capabilities: pvolume pswitch pswitch-joined cswitch cswitch-joined cswitch-exclusive
Capture exclusive group: 0
Playback channels: Front Left - Front Right
Capture channels: Front Left - Front Right
Limits: Playback 0 - 31
Front Left: Playback 27 [87%] [off] Capture [off]
Front Right: Playback 27 [87%] [off] Capture [off]
Simple mixer control 'Phone',0
Capabilities: pvolume pvolume-joined pswitch pswitch-joined cswitch cswitch-joined cswitch-exclusive
Capture exclusive group: 0
Playback channels: Mono
Capture channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono: Playback 27 [87%] [off]
Front Left: Capture [off]
Front Right: Capture [off]
Simple mixer control 'IEC958',0
Capabilities: pswitch pswitch-joined cswitch cswitch-joined
Playback channels: Mono
Capture channels: Mono
Mono: Playback [off] Capture [off]
Simple mixer control 'IEC958 Playback AC97-SPSA',0
Capabilities: volume volume-joined
Playback channels: Mono
Capture channels: Mono
Limits: 0 - 3
Mono: 0 [0%]
Simple mixer control 'PC Speaker',0
Capabilities: pvolume pvolume-joined pswitch pswitch-joined
Playback channels: Mono
Limits: Playback 0 - 15
Mono: Playback 0 [0%] [off]
Simple mixer control 'Aux',0
Capabilities: pvolume pswitch pswitch-joined cswitch cswitch-joined cswitch-exclusive
Capture exclusive group: 0
Playback channels: Front Left - Front Right
Capture channels: Front Left - Front Right
Limits: Playback 0 - 31
Front Left: Playback 31 [100%] [off] Capture [off]
Front Right: Playback 31 [100%] [off] Capture [off]
Simple mixer control 'Mono Output Select',0
Capabilities: enum
Items: 'Mix' 'Mic'
Item0: 'Mix'
Simple mixer control 'Capture',0
Capabilities: cvolume cswitch cswitch-joined
Capture channels: Front Left - Front Right
Limits: Capture 0 - 15
Front Left: Capture 14 [93%] [on]
Front Right: Capture 14 [93%] [on]
Simple mixer control 'Mix',0
Capabilities: cswitch cswitch-joined cswitch-exclusive
Capture exclusive group: 0
Capture channels: Front Left - Front Right
Front Left: Capture [off]
Front Right: Capture [off]
Simple mixer control 'Mix Mono',0
Capabilities: cswitch cswitch-joined cswitch-exclusive
Capture exclusive group: 0
Capture channels: Front Left - Front Right
Front Left: Capture [off]
Front Right: Capture [off]
Simple mixer control 'Analog to IEC958 Output',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [off]
Simple mixer control 'Channel Mode',0
Capabilities: enum
Items: '2ch' '4ch' '6ch'
Item0: '2ch'
Simple mixer control 'Duplicate Front',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [off]
Simple mixer control 'Exchange Center/LFE',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [off]
Simple mixer control 'External Amplifier',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [off]
Simple mixer control 'Swap Surround Slot',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [off]
Any help appreciated. I'm stumped.
--Charlie
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