[mythtv-users] Digital audio: Movies work, music doesn't

Michelle Dupuis mdupuis at ocg.ca
Sat Sep 4 21:43:47 UTC 2010


Nope....

Just HDMI from Myth box to display.  

For movies, the display decodes audio fine and I hear it.  For music, the display is silent.
________________________________________
From: mythtv-users-bounces at mythtv.org [mythtv-users-bounces at mythtv.org] On Behalf Of Greg Oliver [oliver.greg at gmail.com]
Sent: Saturday, September 04, 2010 1:48 PM
To: Myth TV Users List
Subject: Re: [mythtv-users] Digital audio: Movies work, music doesn't

On Sat, Sep 4, 2010 at 7:37 AM, Michelle Dupuis <mdupuis at ocg.ca> wrote:
> I got movies playing great over my toslink connection using the hw:1,3 device.  However, using the same device DOESNT work with music!
>
> There are no errors in the console, and myth thinks that it's playing music just fine, but nothing comes out the speakers!  I tried to play wav file from the command line to that device and got the same result!
>
> I played with my asound.conf settings (see below) and tried sending the audio to the 'convert' device in case it's a format mismatch...still no go.  Anyone can help???
>
> --------------------------------------
> [root at theatre2 ~]aplay -L
> null
>    Discard all samples (playback) or generate zero samples (capture)
> front:CARD=NVidia,DEV=0
>    HDA NVidia, ALC888 Analog
>    Front speakers
> surround40:CARD=NVidia,DEV=0
>    HDA NVidia, ALC888 Analog
>    4.0 Surround output to Front and Rear speakers
> surround41:CARD=NVidia,DEV=0
>    HDA NVidia, ALC888 Analog
>    4.1 Surround output to Front, Rear and Subwoofer speakers
> surround50:CARD=NVidia,DEV=0
>    HDA NVidia, ALC888 Analog
>    5.0 Surround output to Front, Center and Rear speakers
> surround51:CARD=NVidia,DEV=0
>    HDA NVidia, ALC888 Analog
>    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
> surround71:CARD=NVidia,DEV=0
>    HDA NVidia, ALC888 Analog
>    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
> iec958:CARD=NVidia,DEV=0
>    HDA NVidia, ALC888 Digital
>    IEC958 (S/PDIF) Digital Audio Output
> hdmi:CARD=NVidia,DEV=0
>    HDA NVidia, NVIDIA HDMI
>    HDMI Audio Output
> --------------------------------------
> [root at theatre2 ~]aplay-l
> **** List of PLAYBACK Hardware Devices ****
> card 1: NVidia [HDA NVidia], device 0: ALC888 Analog [ALC888 Analog]
>  Subdevices: 1/1
>  Subdevice #0: subdevice #0
> card 1: NVidia [HDA NVidia], device 1: ALC888 Digital [ALC888 Digital]
>  Subdevices: 1/1
>  Subdevice #0: subdevice #0
> card 1: NVidia [HDA NVidia], device 3: NVIDIA HDMI [NVIDIA HDMI]
>  Subdevices: 1/1
>  Subdevice #0: subdevice #0
> [root at theatre2 ~]
> --------------------------------------
> pcm.rate_convert {
>    type plug
>    slave {
>        pcm "hw:1,3"
> #        channels 2
>        rate 48000
>    }
> }

So you're going hdmi -> display -> toslink -> receiver ?

I used to have a Sony STR-DA line of receiver that had to be put on
PCM (rather than auto decode) for any non DD/DTS/THX, etc... audio
formats..  Don't ask me why...
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