BTW,
Does anyone know why the outputs of "amixer scontents" and "amixer -c 0
scontents" are different?
[EMAIL PROTECTED] ~]$ amixer -c 0 scontents
Simple mixer control 'Master',0
Capabilities: pvolume pswitch
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 30 [97%] [-1.50dB] [on]
Front Right: Playback 30 [97%] [-1.50dB] [on]
Simple mixer control 'Master Mono',0
Capabilities: pvolume pvolume-joined pswitch pswitch-joined
Playback channels: Mono
Limits: Playback 0 - 31
Mono: Playback 23 [74%] [-12.00dB] [on]
Simple mixer control 'Headphone',0
Capabilities: pvolume pswitch
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 23 [74%] [-12.00dB] [on]
Front Right: Playback 23 [74%] [-12.00dB] [on]
Simple mixer control 'Headphone Jack Sense',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [off]
Simple mixer control 'PCM',0
Capabilities: pvolume pswitch
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 16 [52%] [-10.50dB] [on]
Front Right: Playback 16 [52%] [-10.50dB] [on]
Simple mixer control 'Surround',0
Capabilities: pvolume pswitch
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 0 [0%] [-46.50dB] [off]
Front Right: Playback 0 [0%] [-46.50dB] [off]
Simple mixer control 'Surround Jack Mode',0
Capabilities: enum
Items: 'Shared' 'Independent'
Item0: 'Shared'
Simple mixer control 'Center',0
Capabilities: pvolume pvolume-joined pswitch pswitch-joined
Playback channels: Mono
Limits: Playback 0 - 31
Mono: Playback 31 [100%] [0.00dB] [off]
Simple mixer control 'LFE',0
Capabilities: pvolume pvolume-joined pswitch pswitch-joined
Playback channels: Mono
Limits: Playback 0 - 31
Mono: Playback 0 [0%] [-46.50dB] [off]
Simple mixer control 'Line',0
Capabilities: pvolume pswitch cswitch 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%] [12.00dB] [off] Capture [off]
Front Right: Playback 31 [100%] [12.00dB] [off] 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-exclusive
Capture exclusive group: 0
Playback channels: Front Left - Front Right
Capture channels: Front Left - Front Right
Limits: Playback 0 - 31
Front Left: Playback 20 [65%] [-4.50dB] [off] Capture [off]
Front Right: Playback 20 [65%] [-4.50dB] [off] Capture [off]
Simple mixer control 'Mic',0
Capabilities: pvolume pswitch cswitch 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%] [12.00dB] [on] Capture [on]
Front Right: Playback 31 [100%] [12.00dB] [on] Capture [on]
Simple mixer control 'Mic Boost (+20dB)',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [on]
Simple mixer control 'Mic Select',0
Capabilities: enum
Items: 'Mic1' 'Mic2'
Item0: 'Mic2'
Simple mixer control 'Video',0
Capabilities: cswitch 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-exclusive
Capture exclusive group: 0
Playback channels: Mono
Capture channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono: Playback 0 [0%] [-34.50dB] [off]
Front Left: Capture [off]
Front Right: Capture [off]
Simple mixer control 'PC Speaker',0
Capabilities: pvolume pvolume-joined pswitch pswitch-joined
Playback channels: Mono
Limits: Playback 0 - 15
Mono: Playback 15 [100%] [0.00dB] [on]
Simple mixer control 'Aux',0
Capabilities: pvolume pswitch cswitch 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 0 [0%] [-34.50dB] [off] Capture [off]
Front Right: Playback 0 [0%] [-34.50dB] [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
Capture channels: Front Left - Front Right
Limits: Capture 0 - 15
Front Left: Capture 15 [100%] [22.50dB] [on]
Front Right: Capture 15 [100%] [22.50dB] [on]
Simple mixer control 'Mix',0
Capabilities: cswitch 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-exclusive
Capture exclusive group: 0
Capture channels: Front Left - Front Right
Front Left: Capture [off]
Front Right: Capture [off]
Simple mixer control 'Channel Mode',0
Capabilities: enum
Items: '2ch' '4ch' '6ch'
Item0: '2ch'
Simple mixer control 'Downmix',0
Capabilities: enum
Items: 'Off' '6 -> 4' '6 -> 2'
Item0: 'Off'
Simple mixer control 'Exchange Center/LFE',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [off]
Simple mixer control 'Exchange Front/Surround',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [off]
Simple mixer control 'Exchange Mic/Line In',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 'Spread Front to Surround and Center/LFE',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [off]
Simple mixer control 'Stereo Mic',0
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [on]
Simple mixer control 'V_REFOUT',0
Capabilities: enum
Items: 'High-Z' '3.7 V' '2.25 V' '0 V'
Item0: '0 V'
On 16/02/2008, Daniel Sanabria <[EMAIL PROTECTED]> wrote:
>
> Hey James,
>
> Thanks a lot for your reply. I've checked the setting as suggested but the
> result is the same
>
> [EMAIL PROTECTED] ~]$ aumix -q
> vol 81, 81, P
> pcm 52, 52
> speaker 100, 100
> line 100, 100, P
> mic 100, 100, R
> cd 0, 0, P
> pcm2 74, 74
> igain 100, 100
> line1 0, 0, P
> phin 0, 0, P
> phout 74, 74, P
> video 100, 100, P
>
> [EMAIL PROTECTED] ~]$ amixer scontents
> Simple mixer control 'Master',0
> Capabilities: pvolume pswitch pswitch-joined
> Playback channels: Front Left - Front Right
> Limits: Playback 0 - 65536
> Mono:
> Front Left: Playback 52852 [81%] [on]
> Front Right: Playback 52852 [81%] [on]
> Simple mixer control 'Capture',0
> Capabilities: cvolume cswitch cswitch-joined
> Capture channels: Front Left - Front Right
> Limits: Capture 0 - 65536
> Front Left: Capture 65536 [100%] [on]
> Front Right: Capture 65536 [100%] [on]
>
> When I do alsamixer -c 0 and while viewing all channels these are the
> values presented:
>
> Item: Master [dB gain=-9.00, -9.00]
> Item: Master Mono [dB gain=-12.00]
> Item: Headphone [dB gain=-12.00, -12.00]
> Item: Headphone Jack Sense [Off]
> Item: PCM [dB gain=-10.50, -10.50]
> Item: Surround [dB gain=-46.50, -46.50]
> Item: Surround Jack Mode [Shared]
> Item: Center [dB gain=0.00]
> Item: LFE [dB gain=-46.50]
> Item: Line [dB gain=12.00, 12.00]
> Item: Line Jack Sense [Off]
> Item: CD [dB gain=-4.50, -4.50]
> Item: Mic [dB gain=12.00, 12.00]
> Item: Mic Boost (+20dB)
> Item: Mic Select [Mic2]
> Item: Phone [dB gain=-34.50]
> Item: PC Speaker [dB gain=0.00]
> Item: Aux [dB gain=-34.50, -34.50]
> Item: Mono Output Select [Mix]
> Item: Capture [dB gain=22.50, 22.50]
> Item: Channel Mode [2ch]
> Item: Downmix [Off]
> Item: Exchange Center/LFE [Off]
> Item: Exchange Front/Surround [Off]
> Item: Exchange Mic/Line In [Off]
> Item: External Amplifier
> Item: Spread Front to Surround and Center/LFE [Off]
> Item: Stereo Mic
> Item: V_REFOUT [0 V]
>
> What else can I try? I'm I missing something obvious here?
>
> Cheers,
>
> Daniel
>
>
>
> On 16/02/2008, James Shatto <[EMAIL PROTECTED]> wrote:
> >
> > > When I do "arecord -d 10 -f S16_LE -r 48000 -c 2
> > > -t wav foobar.wav" and I literally put one of the
> > > speaker at full volume in one of my ears I can
> > > hear a very vere low volume version of myself.
> >
> > That's always a good sign.
> >
> > > _REFOUT=High-Z
> >
> > High-Z is high impedence(Mega Ohms). Generally meant for guitars that
> > plug directly in for recording. Put that on a mic and if you don't have
> > awesome gain, it's gonna make that signal very weak. If you can change that
> > setting, then do. That is if you're not playing electric guitar as the
> > input source.
> >
> > $ aumix -q
> >
> > That's what I normally use to show me my settings. Mic + iGain need to
> > have values other than 0. At least that how it used to work for me. Aumix
> > doesn't seem to play well with multiple soundcards. So I don't use it much
> > anymore.
> >
> > $ amixer scontents
> >
> > A bit verbose, but it should give you some details. Check out the
> > Capture, Mic, and Mic Boost settings.
> >
> > $ alsactl store (or restore)
> >
> > To save or restore whatever settings you've adjusted. My distro(debian)
> > checks for these stored settings before it'll even think of restoring them
> > from some other app like aumix. Basically if /etc/asound.state exists,
> > mixer settings are restored from there.
> >
> > $ alsamixer -c 0
> >
> > To adjust mixer settings the alsa way(F1 for hotkey list). For some
> > settings, it's the only way to access them. At least that was the case for
> > some headphone jacks on dell laptops.
> >
> > HTH
> >
> >
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>
>
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