2011-01-15, 19:49
Hi there,
I'm cross posting here and with a thread I've created on the ubuntu forums as I'm hoping that wider exposure might net me some answers. Whilst I realise that this isn't totally an XBMC specific question, it may well be something others have come across .. though a few searches have revealed that where they have there is little in the way of posted answers
I'm having some sound issues with my HTPC XBMCbuntu build (specs at end of post) and was hoping for some community advice. I've done some reading around and think that I have a solution to most of the issues I'm having, but basically this project was started with sound quality as a goal, so if anyone can suggest a better solution I'm all ears.
Basically I have the following issues:
So, I figure the solution lies in editing the ~/.asoundrc as I can do the following:
So basically does anyone have a better solution or can they confirm that this would be the approach to fix this? Also could they confirm that if I were to play an Dolby Digital or DTS movie that the sound card would decode these correctly?
Thanks in advance,
~Dan
Setup:
Alsa version 1.0.23 (comes with Ubuntu)
Ubuntu x64 server 10.10 "Maverick Meerkat" Minimal (2.6.35-24-generic)
XBMC 10.0 r35648 (Compiled : Dec 17 2010)
Asus AT3N7A-I ION Motherboard, Intel Atom 330, 2GB Kingston EEC DDR2 PC2-6400 (800), GeForce 9400 mGPU (Built-in), Auzentech X-Merridian 7.1 (Oxygen HD, CMI8788), 32 GB OCZ SSD 2.5" SATA, LG GGC-H20L Blu-Ray & HD-ROM, PicoPSU 120W Red
I'm cross posting here and with a thread I've created on the ubuntu forums as I'm hoping that wider exposure might net me some answers. Whilst I realise that this isn't totally an XBMC specific question, it may well be something others have come across .. though a few searches have revealed that where they have there is little in the way of posted answers
I'm having some sound issues with my HTPC XBMCbuntu build (specs at end of post) and was hoping for some community advice. I've done some reading around and think that I have a solution to most of the issues I'm having, but basically this project was started with sound quality as a goal, so if anyone can suggest a better solution I'm all ears.
Basically I have the following issues:
- Volume is extremely loud. Right now in alsamixer I have the volume set to -38dB (1%) of gain and it is what I would term "normal" listening level. The next step down is off. I've actually blown the front grill off a test speaker whilst playing around with sound on the card;
- The centre and LFE speakers are mapped to the wrong channels; and
- I can only get output from the rear speakers when I use pcm.surround71, any of the others (surround40, surround51) and nothing comes out.
So, I figure the solution lies in editing the ~/.asoundrc as I can do the following:
- Address the volume issues by lowing the output for each speaker in the ttable mappings;
- Swap the mixed up speakers/channels over again in the ttable mappings; and
- Change the surround51 to be an 8 channel mapping with the side channels set to a volume of 0.
So basically does anyone have a better solution or can they confirm that this would be the approach to fix this? Also could they confirm that if I were to play an Dolby Digital or DTS movie that the sound card would decode these correctly?
Thanks in advance,
~Dan
Setup:
Alsa version 1.0.23 (comes with Ubuntu)
Ubuntu x64 server 10.10 "Maverick Meerkat" Minimal (2.6.35-24-generic)
XBMC 10.0 r35648 (Compiled : Dec 17 2010)
Asus AT3N7A-I ION Motherboard, Intel Atom 330, 2GB Kingston EEC DDR2 PC2-6400 (800), GeForce 9400 mGPU (Built-in), Auzentech X-Merridian 7.1 (Oxygen HD, CMI8788), 32 GB OCZ SSD 2.5" SATA, LG GGC-H20L Blu-Ray & HD-ROM, PicoPSU 120W Red