[mythtv-users] hauppauge hvr-1800 very low volume

[genius9976 at yahoo.com]

Using those settings I get no sound, and mythfrontend outputs this:

2008-07-07 10:53:26.343 TV: Attempting to change from None to WatchingPreRecorded
2008-07-07 10:53:26.443 DPMS Deactivated 
2008-07-07 10:53:28.753 Opening audio device 'spdif'. ch 6(2) sr 48000
2008-07-07 10:53:28.754 Opening ALSA audio device 'spdif'.
2008-07-07 10:53:28.756 AudioOutput Error: Channels count (6) not available: Invalid argument
2008-07-07 10:53:28.756 AudioOutput Error: Unable to set ALSA parameters
2008-07-07 10:53:28.758 NVP: Disabling Audio, reason is: Unable to set ALSA parameters


running the commands you suggested produces the following:

[root at mythback scott]# iecset audio 1
control "IEC958 Playback Default" (index -1) not found
[root at mythback scott]# iecset -x
control "IEC958 Playback Default" (index -1) not found

Any thoughts?



P.S. Thank you for all your help so far.





----- Original Message ----
From: Alen Edwards <allen.edwards at oldpaloalto.com>
To: Discussion about mythtv <mythtv-users at mythtv.org>
Sent: Monday, July 7, 2008 1:40:34 AM
Subject: Re: [mythtv-users] hauppauge hvr-1800 very low volume

genius9976 at yahoo.com wrote:
> On my old system my speakers were attached via analog.  On my current 
> box, they are attached via spdif.  However, when I just output audio via 
> the headphones, digital recordings are still quieter, though I think the 
> problem is not as bad.  In fact, using headphones, the difference 
> between myth and other programs disappears, though the difference 
> between analog and digital recording remains.  I guess myth is sending 
> quieter audio than other programs digitally, but not via analog.  Why 
> would that be?  In alsa mixer (and master and pcm mixer volume in the 
> myth audio setting) everything is turned up all the way.  Also, I think 
> I'm using pulse audio.  I do not have the ac3/dts to spdif passthrough 
> options enabled (I haven't been able to get them to work).
> 
> 

I would be curious if the setup that worked for me on Mythbuntu 8.04 
works for you.  I get similar level bit pure spdif output for TV and 
Music.  Nothing else that was recommended or in any of the wiki gave me 
this.

Try this:

Audio output device:  ALSA:spdif
Passthrough output device:  ALSA:iec958:(AESO 0x02)
Max Audio Channels:  Stereo
Upmix: passive
Enable AC3 to SPDIF passthrough  CHECKED
Enable DTS to SPDIF passthrough  CHECKED
Use internal volume NOT CHECKED
Aggressive sound  NOT CHECKED

/etc/X11/asound.conf   REMOVED (or renamed)
~/.asouncrc   REMOVED  (or renamed)

Also, if you issue these commands:
iecset audio 1
iecset -x

You should see AES0 0x02 somewhere in this last output.  If you don't, 
you might want to try changing the Passthrough to whatever your card says.

Let me know what happens.

Allen
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