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

Tue Jul 8 22:11:42 UTC 2008

genius9976 at yahoo.com wrote:
> 
> 
> ----- Original Message ----
> From: Alen Edwards <allen.edwards at oldpaloalto.com>
> To: Discussion about mythtv <mythtv-users at mythtv.org>
> Sent: Tuesday, July 8, 2008 11:17:52 AM
> Subject: Re: [mythtv-users] hauppauge hvr-1800 very low volume
> 
> genius9976 at yahoo.com <mailto:genius9976 at yahoo.com> wrote:
>  > ----- Original Message ----
>  > From: Alen Edwards <allen.edwards at oldpaloalto.com 
> <mailto:allen.edwards at oldpaloalto.com>>
>  > To: Discussion about mythtv <mythtv-users at mythtv.org 
> <mailto:mythtv-users at mythtv.org>>; genius9976 at yahoo.com 
> <mailto:genius9976 at yahoo.com>
>  > Sent: Monday, July 7, 2008 10:27:29 PM
>  > Subject: Re: [mythtv-users] hauppauge hvr-1800 very low volume
>  >
>  > genius9976 at yahoo.com <mailto:genius9976 at yahoo.com> 
> <mailto:genius9976 at yahoo.com <mailto:genius9976 at yahoo.com>> wrote:
>  >  > I don't think that worked...
>  >  >
>  >  > [scott at mythback ~]$ aplay -l
>  >  > **** List of PLAYBACK Hardware Devices ****
>  >  > card 0: SB [HDA ATI SB], device 0: ALC883 Analog [ALC883 Analog]
>  >  >  Subdevices: 1/1
>  >  >  Subdevice #0: subdevice #0
>  >  > card 0: SB [HDA ATI SB], device 1: ALC883 Digital [ALC883 Digital]
>  >  >  Subdevices: 1/1
>  >  >  Subdevice #0: subdevice #0
>  >  > [scott at mythback ~]$ iecset audio 1
>  >  > control "IEC958 Playback Default" (index -1) not found
>  >  >
>  >  >
>  >  > I tried as root and got the same thing...
>  >  >
>  >  >
>  >  > 
> ------------------------------------------------------------------------
>  >  >
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>  >  > mythtv-users at mythtv.org <mailto:mythtv-users at mythtv.org> 
> <mailto:mythtv-users at mythtv.org <mailto:mythtv-users at mythtv.org>>
>  >  > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>  >
>  > Well, I think I told you the wrong thing.  I am sorry for the confusion.
>  >  I was going by memory.  I really need to be more careful before posting.
>  >
>  > Let's try one more thing:
>  >
>  > iecset audio 0
>  > iecset -x
>  >
>  > I would certainly expect that you would see this:
>  > $ iecset -x
>  > AES0=0x02,AES1=0x82,AES2=0x00,AES3=0x02
>  >
>  > Because we have the same chipset.
>  >
>  > If doing the above allows music to play temporarily, you will have the
>  > same problem as this guy:
>  > http://mythtv.org/pipermail/mythtv-users/2008-March/216382.html
>  >
>  > He didn't get a response but his problem may be your solution as you may
>  > not have the same goal he did.
>  >
>  > Also, you might write him and see if he solved it.
>  >
>  > Since your sound chip is the same as mine by the way.  It is strange it
>  > is behaving differently.  We just need to figure out what the difference
>  > is.  I think you also said you have Mythbuntu 8.04 so that would be the
>  > same as well.
>  >
>  > Allen
>  >
>  >
>  >
>  >
>  > Something weird must be going on...
>  >
>  > [scott at mythback ~]$ iecset audio 0
>  > control "IEC958 Playback Default" (index -1) not found
>  > [scott at mythback ~]$ iecset -x
>  > control "IEC958 Playback Default" (index -1) not found
>  >
>  >
>  > I'm actually using Fedora 9 which comes with PulseAudio (could that be
>  > the problem?).  However, even when my computer is not set to output
>  > sound through PulseAudio I still get the above error.  One time when I
>  > tried to run "iecset audio 1" via ssh I did get some weird error about
>  > not being able to connect to the PulseAudio server or something like
>  > that, but I haven't been able to reproduce that error locally.  I have
>  > always been able to play everything I've wanted to, but over spdif, myth
>  > seems to be a quieter program, and with digital recordings being quieter
>  > than analog, they are not quite loud enough with everything turned all
>  > the way up.
>  >
>  >
>  > ------------------------------------------------------------------------
>  >
>  > _______________________________________________
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>  > mythtv-users at mythtv.org <mailto:mythtv-users at mythtv.org>
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> 
> I agree that something strange must be going on.  We have the same
> chipset and get very different results although as you point out,
> different versions of linux.
> 
> I guess you need to figure out why iecset isn't returning anything
> 
> I did a little googling on this and the best suggestion I could find was
> to remove pulse audio.
> 
> "alsa-plugins-pulseaudio rpm removed"
> 
> I can think of things to do, but they all work around what is probably
> the real problem which is, like you said, something weird is going on.
> 
> Allen
> 
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> 
> 
> 
> Thanks!
> 
> Removing alsa-plugins-pulseaudio worked... With the settings in myth 
> that you mentioned, the digital recordings are still somewhat quieter 
> than analog, but myth no longer seem to be quieter than other programs, 
> so I can get things 'loud enough.'  I also now get similar output using 
> the commands you suggested:
> 
> 
> [root at mythback X11]# aplay -l
> **** List of PLAYBACK Hardware Devices ****
> card 0: SB [HDA ATI SB], device 0: ALC883 Analog [ALC883 Analog]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
> card 0: SB [HDA ATI SB], device 1: ALC883 Digital [ALC883 Digital]
>   Subdevices: 1/1
>   Subdevice #0: subdevice #0
> [root at mythback X11]# iecset audio 1
> Mode: consumer
> Data: audio
> Rate: 44100 Hz
> Copyright: permitted
> Emphasis: none
> Category: general
> Original: 1st generation
> Clock: 1000 ppm
> [root at mythback X11]# iecset -x
> AES0=0x04,AES1=0x00,AES2=0x00,AES3=0x00
> 
> 
> This isn't really a big deal (everything works now), but any idea why 
> would I be getting different output from the 'iecset audio 1' command 
> when we have the same audio chipsets?  I assume 48000Hz audio is better...
> 
I am glad everything is working!  That is great news.

I think the rate that is reported is the last rate that was used so I 
would assume the last thing you did was listen to MythMusic and the last 
thing I did was MythTV.  And.. it is really good that you are getting 
44100 reported because that is a sign you are getting bit perfect audio 
without any resampling.

Again, glad it finally worked out for you.

Allen