tek on 12 Nov 2005 03:25:17 -0000


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Re: [PLUG] Why do my audio recordings come out mono?


> [root@localhost /]# arecord -l
> **** List of CAPTURE Hardware Devices ****
> card 0: I82801DBICH4 [Intel 82801DB-ICH4], device 0: Intel ICH [Intel
> 82801DB-ICH4]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
> card 0: I82801DBICH4 [Intel 82801DB-ICH4], device 1: Intel ICH - MIC ADC
> [Intel 82801DB-ICH4 - MIC ADC]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
> card 0: I82801DBICH4 [Intel 82801DB-ICH4], device 2: Intel ICH - MIC2 ADC
> [Intel 82801DB-ICH4 - MIC2 ADC]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
> card 0: I82801DBICH4 [Intel 82801DB-ICH4], device 3: Intel ICH - ADC2
> [Intel 82801DB-ICH4 - ADC2]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
>
> [root@localhost /]# amixer
> Simple mixer control 'Master',0
>   Capabilities: pvolume pswitch
>   Playback channels: Front Left - Front Right
>   Limits: Playback 0 - 31
>   Front Left: Playback 31 [100%] [on]
>   Front Right: Playback 31 [100%] [on]
> Simple mixer control 'Master Mono',0
>   Capabilities: pvolume pvolume-joined pswitch pswitch-joined
>   Playback channels: Mono
>   Limits: Playback 0 - 31
>   Mono: Playback 31 [100%] [off]
> Simple mixer control 'Headphone Jack Sense',0
>   Capabilities: pswitch pswitch-joined
>   Playback channels: Mono
>   Mono: Playback [on]
> Simple mixer control 'PCM',0
>   Capabilities: pvolume pswitch
>   Playback channels: Front Left - Front Right
>   Limits: Playback 0 - 31
>   Front Left: Playback 31 [100%] [on]
>   Front Right: Playback 31 [100%] [on]
> Simple mixer control 'Line',0
>   Capabilities: pvolume pswitch 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 25 [81%] [on] Capture [off]
>   Front Right: Playback 25 [81%] [on] Capture [off]
> Simple mixer control 'Line Jack Sense',0
>   Capabilities: pswitch pswitch-joined
>   Playback channels: Mono
>   Mono: Playback [off]
> Simple mixer control 'CD',0
>   Capabilities: pvolume pswitch 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%] [on] Capture [off]
>   Front Right: Playback 31 [100%] [on] 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 31 [100%] [on]
>   Front Left: Capture [on]
>   Front Right: Capture [on]
> Simple mixer control 'Mic Boost (+20dB)',0
>   Capabilities: pswitch pswitch-joined
>   Playback channels: Mono
>   Mono: Playback [off]
> Simple mixer control 'Video',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 '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 0 [0%] [off]
>   Front Left: Capture [off]
>   Front Right: Capture [off]
> Simple mixer control 'Aux',0
>   Capabilities: pvolume pswitch 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%] [on] Capture [off]
>   Front Right: Playback 31 [100%] [on] Capture [off]
> Simple mixer control 'Capture',0
>   Capabilities: cvolume cswitch
>   Capture channels: Front Left - Front Right
>   Limits: Capture 0 - 15
>   Front Left: Capture 15 [100%] [on]
>   Front Right: Capture 15 [100%] [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 'External Amplifier',0
>   Capabilities: pswitch pswitch-joined
>   Playback channels: Mono
>   Mono: Playback [on]
>
> ___________________________________________________________________________
> Philadelphia Linux Users Group         --
> http://www.phillylinux.org
> Announcements -
> http://lists.phillylinux.org/mailman/listinfo/plug-announce
> General Discussion  --
> http://lists.phillylinux.org/mailman/listinfo/plug
>

I'm not positive but your amixer output says mono all over it. It doesn't
say stereo anywhere. My guess, no stereo.
Also if it's an outside source make sure your using stereo audio cable.

-----------------------------------------------------------------
          Tek-69
<--===Keep Hope Alive===-->

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___________________________________________________________________________
Philadelphia Linux Users Group         --        http://www.phillylinux.org
Announcements - http://lists.phillylinux.org/mailman/listinfo/plug-announce
General Discussion  --   http://lists.phillylinux.org/mailman/listinfo/plug