[mythtv-users] Sound Issues

[Ryszard]

if you dont have your sound modules loaded, then doing a cat on
/dev/dsp will show you the device doesnt exist.  do an lsmod to have a
look.  you could also do a chmod 777 on /dev/dsp* to _ensure_ you have
enuff permission for any user to do what they need.


On Sun, 21 Nov 2004 00:09:42 -0800, Dean <mythtv at deanandadie.net> wrote:
> Hello All,
> 
> I know sound is a hot topic on the alias, so I searched the archives, but
> nothing seems to help.
> 
> I have 0.16 running on Debian -unstable.
> 0 mythical /dev # uname -a
> Linux mythical 2.6.9 #1 Sat Nov 20 17:02:33 PST 2004 i686 GNU/Linux
> 
> I have a WinTV Go card and some sort of Cirrus Logic sound card.  The capture
> card is jumpered to the sound card and I can play sound on the system.  I can
> watch TV picture from a front end.  All the hardware appears to work, except
> the sound on watching TV.
> 
> I have followed the sound configuration section of the docs and the levels
> seem to be set up correctly.  According to AlsaMixer my sound card (Sound
> Fusion CS46xx) has a Caputre input and a Line In.  I have them both set to
> captur, but only the line in can be muted.  I have the tv capture card
> jumpered to the black jack labeled line in on the back of the sound card.
> 
> When I watch live TV on a front-end, the backend log complains about /dev/dsp.
>  I also can not run "aplay /dev/dsp".  My dsp devices exist and appear to
> have the correct permissions.  I even re-MAKEDEV'ed the dsp devices.
> 
> Much information follows....
> 
> Help!  I can't get audio to work.  It's the last thing left to do.
> Thanks much,
> --Dean
> 
> Backend logs:
> 2004-11-19 22:55:06 adding: mythfe1 as a client (events: 0)
> 2004-11-19 22:55:06 adding: mythfe1 as a remote ringbuffer
> open: No such device
> 2004-11-19 22:55:06 Could not open audio device: /dev/dsp
> 2004-11-19 22:55:06 Changing from None to WatchingLiveTV
> Cannot open DSP '/dev/dsp', dying.
> open: No such device
> Could not detect audio blocksize
> Cannot open DSP '/dev/dsp', exitingopen: No such device
> 2004-11-19 22:55:13 Changing from WatchingLiveTV to None
> 
> 1 mythical /dev # aplay /dev/dsp
> /dev/dsp: No such device
> 
> 1 mythical /dev # ll /dev/dsp*
> lrwxrwxrwx  1 root root       4 Nov 20  2004 /dev/dsp -> dsp0
> crw-rw----  1 root audio 14,  3 Nov 20  2004 /dev/dsp0
> ....
> 
> 0 mythical /root # lspci
> ....
> 0000:00:09.0 Multimedia video controller: Brooktree Corporation Bt878 Video
> Capture (rev 11)
> 0000:00:09.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture
> (rev 11)
> 0000:00:0d.0 Multimedia audio controller: Cirrus Logic CS 4614/22/24
> [CrystalClear SoundFusion Audio Accelerator] (rev 01)
> 
> 0 mythical /root # amixer
> Simple mixer control 'Master',0
>   Capabilities: pvolume pswitch pswitch-joined
>   Playback channels: Front Left - Front Right
>   Limits: Playback 0 - 63
>   Front Left: Playback 63 [100%] [on]
>   Front Right: Playback 63 [100%] [on]
> Simple mixer control 'Master Mono',0
>   Capabilities: pvolume pvolume-joined pswitch pswitch-joined
>   Playback channels: Mono
>   Limits: Playback 0 - 31
>   Mono: Playback 17 [55%] [on]
> Simple mixer control 'Headphone',0
>   Capabilities: pvolume pswitch pswitch-joined
>   Playback channels: Front Left - Front Right
>   Limits: Playback 0 - 31
>   Front Left: Playback 23 [74%] [on]
>   Front Right: Playback 23 [74%] [on]
> Simple mixer control '3D Control - Center',0
>   Capabilities: volume volume-joined
>   Playback channels: Mono
>   Limits: 0 - 15
>   Mono: 8 [53%]
> Simple mixer control '3D Control - Depth',0
>   Capabilities: volume volume-joined
>   Playback channels: Mono
>   Limits: 0 - 15
>   Mono: 8 [53%]
> Simple mixer control '3D Control - Switch',0
>   Capabilities: pswitch pswitch-joined
>   Playback channels: Mono
>   Mono: Playback [on]
> Simple mixer control 'PCM',0
>   Capabilities: pvolume pswitch pswitch-joined
>   Playback channels: Front Left - Front Right
>   Limits: Playback 0 - 31
>   Front Left: Playback 22 [71%] [on]
>   Front Right: Playback 22 [71%] [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 23 [74%] [off] Capture [on]
>   Front Right: Playback 23 [74%] [off] 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 16 [52%] [on] Capture [off]
>   Front Right: Playback 16 [52%] [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 16 [52%] [on]
>   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:
>   Mono:
> 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 17 [55%] [on] Capture [off]
>   Front Right: Playback 17 [55%] [on] 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 16 [52%] [on]
>   Front Left: Capture [off]
>   Front Right: Capture [off]
> Simple mixer control 'IEC958',0
>   Capabilities: pswitch pswitch-joined
>   Playback channels: Mono
>   Mono: Playback [on]
> Simple mixer control 'PC Speaker',0
>   Capabilities: pvolume pvolume-joined pswitch pswitch-joined
>   Playback channels: Mono
>   Limits: Playback 0 - 15
>   Mono: Playback 8 [53%] [on]
> 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 18 [58%] [on] Capture [off]
>   Front Right: Playback 18 [58%] [on] Capture [off]
> Simple mixer control 'Mono Output Select',0
>   Capabilities:
>   Mono:
> Simple mixer control 'Capture',0
>   Capabilities: cvolume cswitch cswitch-joined
>   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 'ADC',0
>   Capabilities: volume
>   Playback channels: Front Left - Front Right
>   Limits: 0 - 32767
>   Mono: 32767 [100%]
>   Front Left:
>   Front Right:
> Simple mixer control 'DAC',0
>   Capabilities: volume
>   Playback channels: Front Left - Front Right
>   Limits: 0 - 32767
>   Mono: 32767 [100%]
>   Front Left:
>   Front Right:
> Simple mixer control 'External Amplifier',0
>   Capabilities: pswitch pswitch-joined
>   Playback channels: Mono
>   Mono: Playback [on]
> 
> --Dean - Unscrambler of eggs
> --
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> 
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