[mythtv-users] MythTV 0.23 audio settings
Kelly Shutt
tetrahedron at whycomehere.com
Sat Mar 20 16:52:08 UTC 2010
OK, so I took another stab at getting it working this morning and made
some progress. I was able to get things working if I force the MythTV
audio mode to stereo only. However, I really would like 5.1 to work and
my receiver support DTS, etc. Any ideas on getting the 5.1 options to
work properly? Even if I turn the upsampling options off completely I
still get no audio at all when set on 5.1.
Peace,
Kelly
On 3/20/2010 9:55 AM, Kelly Shutt wrote:
> I'm having problems getting HDMI audio working properly. I have
> isolated the problem to MythTV at this point, as I can play things
> outside MythTV and hear the audio fine. In fact, I can even launch
> videos from MythVideo and the mplayer instance that spawns has perfect
> audio. I just can't get it to work inside MythTV, for playing music
> and recordings.
>
> I have gone through several guides and forum postings now, even the
> one on the MythTV wiki:
> http://www.mythtv.org/wiki/Digital_Audio_Tutorial
> Out of the box my ALSA settings were almost correct. The system was
> already seeing appropriate entries in "aplay -l", etc. and I just had
> to create an appropriate asound.conf file to force things to HDMI as
> the default. This is included below.
> I am running the latest updates of Mythbuntu, which gets their trunk
> version from MythTV 0.23 trunk. I also noticed that the 0.23 version
> has different audio settings now, and is completely different from
> those settings mentioned on the MythTV wiki. In fact, SPDIF
> passthrough doesn't even show up in the new version anywhere that I
> can find. I have however tried every setting combination I can think
> of, but MythTV just refuses to use the right audio channel.
>
> Please scroll down for hardware specs, etc.
>
> Peace,
> Kelly
>
>
>
> Zotac IONITX-D-E Motherboard, Chipset MCP7A-ION
> - The latest NVidia 190 drivers are installed and recognized the
> HDMI port out of the box.
> - Video is working great over HDMI, I even get BIOS post to the
> screen.
> - As this is a set top machine, in a small case, I use the
> onboard audio/video and do not have any external cards.
> 4Gb DDR2 Dual Channel RAM
> Intel Atom 330 CPU
> HVR-2250
>
>
> /etc/asound.conf
> pcm.!default {
> type hw
> card 0
> device 3
> }
> ctl.!default { //Added per the MythTV wiki, apparently 0.23
> needs this.
> type hw
> card 0
> }
>
>
> "aplay -l"
> **** List of PLAYBACK Hardware Devices ****
> card 0: NVidia [HDA NVidia], device 0: ALC662 rev1 Analog [ALC662 rev1
> Analog]
> Subdevices: 1/1
> Subdevice #0: subdevice #0
> card 0: NVidia [HDA NVidia], device 1: ALC662 rev1 Digital [ALC662
> rev1 Digital]
> Subdevices: 1/1
> Subdevice #0: subdevice #0
> card 0: NVidia [HDA NVidia], device 3: NVIDIA HDMI [NVIDIA HDMI]
> Subdevices: 1/1
> Subdevice #0: subdevice #0
>
>
> "aplay -L"
> front:CARD=NVidia,DEV=0
> HDA NVidia, ALC662 rev1 Analog
> Front speakers
> surround40:CARD=NVidia,DEV=0
> HDA NVidia, ALC662 rev1 Analog
> 4.0 Surround output to Front and Rear speakers
> surround41:CARD=NVidia,DEV=0
> HDA NVidia, ALC662 rev1 Analog
> 4.1 Surround output to Front, Rear and Subwoofer speakers
> surround50:CARD=NVidia,DEV=0
> HDA NVidia, ALC662 rev1 Analog
> 5.0 Surround output to Front, Center and Rear speakers
> surround51:CARD=NVidia,DEV=0
> HDA NVidia, ALC662 rev1 Analog
> 5.1 Surround output to Front, Center, Rear and Subwoofer speakers
> surround71:CARD=NVidia,DEV=0
> HDA NVidia, ALC662 rev1 Analog
> 7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
> iec958:CARD=NVidia,DEV=0
> HDA NVidia, ALC662 rev1 Digital
> IEC958 (S/PDIF) Digital Audio Output
> hdmi:CARD=NVidia,DEV=0
> HDA NVidia, NVIDIA HDMI
> HDMI Audio Output
> null
> Discard all samples (playback) or generate zero samples (capture)
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