[mythtv-users] Audio to 3 devices

Nick Rout nick.rout at gmail.com
Sat Aug 2 06:49:55 UTC 2014


On Sat, Aug 2, 2014 at 1:47 PM, Josu Lazkano <josu.lazkano at gmail.com> wrote:
> Hello list,
>
> I am trying to configure a frontend to get 3 audio output:
>
> 1. Analog -> Piped music: Stereo and no volume control
> 2. HDMI -> TV: Stereo and volume control
> 3. Optical -> Amplifier: ALL (stereo, dolby, DTS...) no volume control
>
> This is my devices:
>
> $ aplay -l
> **** List of PLAYBACK Hardware Devices ****
> card 0: Intel [HDA Intel], device 0: ALC892 Analog [ALC892 Analog]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
> card 0: Intel [HDA Intel], device 1: ALC892 Digital [ALC892 Digital]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
> card 1: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
> card 1: NVidia [HDA NVidia], device 7: HDMI 1 [HDMI 1]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
> card 1: NVidia [HDA NVidia], device 8: HDMI 2 [HDMI 2]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
>
> $ aplay -L
> null
>     Discard all samples (playback) or generate zero samples (capture)
> default:CARD=Intel
>     HDA Intel, ALC892 Analog
>     Default Audio Device
> sysdefault:CARD=Intel
>     HDA Intel, ALC892 Analog
>     Default Audio Device
> front:CARD=Intel,DEV=0
>     HDA Intel, ALC892 Analog
>     Front speakers
> surround40:CARD=Intel,DEV=0
>     HDA Intel, ALC892 Analog
>     4.0 Surround output to Front and Rear speakers
> surround41:CARD=Intel,DEV=0
>     HDA Intel, ALC892 Analog
>     4.1 Surround output to Front, Rear and Subwoofer speakers
> surround50:CARD=Intel,DEV=0
>     HDA Intel, ALC892 Analog
>     5.0 Surround output to Front, Center and Rear speakers
> surround51:CARD=Intel,DEV=0
>     HDA Intel, ALC892 Analog
>     5.1 Surround output to Front, Center, Rear and Subwoofer speakers
> surround71:CARD=Intel,DEV=0
>     HDA Intel, ALC892 Analog
>     7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
> iec958:CARD=Intel,DEV=0
>     HDA Intel, ALC892 Digital
>     IEC958 (S/PDIF) Digital Audio Output
> hdmi:CARD=NVidia,DEV=0
>     HDA NVidia, HDMI 0
>     HDMI Audio Output
> hdmi:CARD=NVidia,DEV=1
>     HDA NVidia, HDMI 1
>     HDMI Audio Output
> hdmi:CARD=NVidia,DEV=2
>     HDA NVidia, HDMI 2
>     HDMI Audio Output
>
> How could I configure this? with ".asoundrc" file? frontend audio configuration?
>
> I normally use the TV speakers (HDMI), so I want to have the volume
> control over it. For the piped music and optical outputs, I prefer to
> get always same volume (I will control with the amplifier remote).
>
> Is this configuration possible?
>
> Thanks and best regards.
>


Are you wanting all 3 playing at once, or just one at a time?


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