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+---- Thread: [LIVE] Dharma2 - ION2 -o HDMI - no sound in certain videos (/showthread.php?tid=82891)
[LIVE] Dharma2 - ION2 - HDMI - no sound in certain videos - BoxFreak - 2010-10-10
Hi all!
Done my searching and tried a couple of tweaks for few hours, but can´t figure this out myself...
I have this Zotac ZBOX HD11 -machine and Dharma2 beta Live installed onto it. Sound works otherwise fine (music and DTS/DD/PCM -videos), but videos that have normal stereo-sound won´t give any sound, nor error (in my own library or for example youtube).
I´ve understood that ALSA is the "soundsystem" and something could be done with .asoundrc -file, but nothing seems to work. So I´d appreciate specific help for what to put on .asoundrc and then how to set XBMC´s audio settings (audio output and passthrough -device).
There´s also no navigation sounds, are these problems related...?
- AuXBoX - 2010-10-10
try changing the setting within xbmc. It sounds like you have something enabled that your amp doesn't decode
- BoxFreak - 2010-10-10
Did some extensive research, and situation is not as bad as I thought.
The problem occurs only with some lower quality youtube videos and one item in my video-library. This video has mp3, 24000hz, 2channels, s16, 56kb/s audio. Compared to my other videos the sample rate in this one is quite low, and also when looking at youtube, the videos with sample rate under 44100hz and stereo don´t give any sound but higher will. Mono 44100hz doesn´t work also.
Is it just so that my receiver doesn´t understand this low sample rate and the sound won´t play?
My audio output settings at XBMC:
Audio output: HDMI
Speaker conf 5.1
Boost vol level on downmix X
AC3 capable receiver X
DTS capable receiver X
Audio output device: HDA NVidia hdmi
Passthrough output device: HDA NVidia hdmi
Receiver Sony STR-DA3200ES with HDMI 1.1 taking multichannel LPCM just fine.
- newb2linux - 2010-12-13
I have this same issue with some 24000hz audio ove HDMI too. Did you resolve your issue?
- contentwhores - 2010-12-13
newb2linux Wrote:I have this same issue with some 24000hz audio ove HDMI too.
OK, so I've played around with ALSA a lot over the past couple of weeks but I'm no means an expert - ymmv!
From looking at the various config files this spec won't play over PCM by default. You can make it play by creating a custom .asoundrc or /etc/asound.conf file and adding a processor to upsample the recording to, say, 48K - not trivial but not impossible. I suggest looking at the documentation at http://alsa.opensrc.org/index.php/.asoundrc#Plugins as that has details about how to define a plugin to do what you want. Good luck!
- gsgleason - 2010-12-14
It would be helpful to share what you did rather than telling everyone that you got it working and to go figure it out for themselves.
- contentwhores - 2010-12-31
gsgleason Wrote:It would be helpful to share what you did rather than telling everyone that you got it working and to go figure it out for themselves.
Actually I didn't do anything. I was reading the ALSA documentation to find out how to configure it and realised that I didn't need to use the config files as I wasn't doing anything unusual - the defaults would do what I needed for my setup. As such I have no files, configs, changes to share. What I learnt was that this is possible by creating such mappings etc. in these files for purposes such as this.