Re: [mythtv-users] spdif working but not passthrough - AV-710
On 10/31/05, Byron Poland <[EMAIL PROTECTED]> wrote: > So thats crazy. I got it to work with mplayer with just the the -ac > hwac3 option. It didn't work with the -ao alsa:device=hw=0.2 in the > command. "-ac hwac3" tells mplayer to pass AC3 signals though without decoding. If you don't have that mplayer will decode them to separate channels so you definitely needed that. The device setting may or may not be necessary depending on what the hardware does and what the default device is. On my card I need to specify the device but I believe some cards will send everything from the default analogue output is also output to the digital outputs, provided the format is correct. Sounds like yours might be like that, or maybe you've got spdif setup as the default alsa device? > So I think I don't have to specify a device. It's safest to specify a device anyway so that it is obvious what is going on. Otherwise if you change sound cards you might find it stops working and it will be less clear where the problem lies. > I have no idea why it never worked earlier, as I know this was one of > the options I had tried. only thing I did differently was got mplayer > to work inbetween Mythtv tries. I haven't used AC3 passthrough with MythTV so I'm not sure what was wrong there. The reason mplayer didn't work previously was the missing "-ac hwac3" option. I don't see why getting that to work would affect MythTV so that is a bit of a mystery. Incidentally with mplayer you should have a comma on the end of the ac option, e.g. "-ac hwac3,". This tells mplayer to try the default audio output codec if the hardware ac3 passthrough doesn't work, as in the case of a non AC3 signal. The option I use is "-ac hwdts,hwac3,". This tries DTS passthrough first, then AC3 passthrough, then the default audio codec. That way if a video has several audio streams it will favour DTS over AC3. Regards, Steve ___ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
Re: [mythtv-users] spdif working but not passthrough - AV-710
On 10/30/05, Byron Poland <[EMAIL PROTECTED]> wrote: > On 10/30/05, Michael T. Dean <[EMAIL PROTECTED]> wrote: > > Byron Poland wrote: > > > > >I have a chaintech AV-710, I am just setting it up, and used the > > >asound.conf from knoppmyth's dragon setup since it uses this card. > > > > > >I got spdif output working but want to enable passthrough because all > > >my recordings are HD and have AC3 or 5.1 Surround sound. > > > > > >Despite getting the spdif working (with device set to ALSA:spdif), > > >when I check the "Enable AC3 to SP/DIF Passthrough" I get no sound. > > > > > >I've searched the archives and tried anything I could find. > > > > > >Setting the device to ALSA:plug:iec978 with "Enable ... Passthrough" > > >checked gets me a loud buzzing sound. Other then that I get no > > >sounds. > > > > > > > > The plug plugin only works with 2-channel sound. > > > > >I'm at a loss as to what to try now. > > > > > > > > What does your receiver say? The audio receiver should say something > > about the mode of data it's receiving--"PCM" or "AC-3" or "Dolby > > Digital" or something? It's most likely a problem with your > > receiver/receiver configuration. > > > > Mike > > ___ > > mythtv-users mailing list > > mythtv-users@mythtv.org > > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users > > > > When pass through isn't enabled, the reciever says PCM 48 or 44 > depending on the source. When it is enabled it is blank, no channels > lit, though If I watch it closely, I see a Dec. Er. Flash up right > when I start playback. So I guess the Reciever is getting a signal, it > just can't understand it. The reciever is a Sony STR-DE695. I > intially set up in my computer room with an little bit older Sony > reciever, and had no luck there either, though I can't remember how > much time I spent on it. I'll look into the reciever, but it is > auto-sensing as far as I know and just is plug and play pretty much no > matter whats on the fiber. > > I'll try mplayer or xine with a nuv with surround and see how that goes. > So thats crazy. I got it to work with mplayer with just the the -ac hwac3 option. It didn't work with the -ao alsa:device=hw=0.2 in the command. So It worked and I got 5.1 channel out through my reciever. So I think I don't have to specify a device. So I go and change Mythtv to have no sound device. Of course that didn't work. I re-entered ASLA:spdif, with Passthrough enabled, and played a recording.. and guess what it worked. I went though a bunch of recordings and they all worked 5.1 channel or 3 channel then I tried live tv, and it was good, and last up I tried live tv with my plextor convertX which records to mp3, and that worked too. I have no idea why it never worked earlier, as I know this was one of the options I had tried. only thing I did differently was got mplayer to work inbetween Mythtv tries. ___ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
Re: [mythtv-users] spdif working but not passthrough - AV-710
On 10/30/05, Michael T. Dean <[EMAIL PROTECTED]> wrote: > Byron Poland wrote: > > >I have a chaintech AV-710, I am just setting it up, and used the > >asound.conf from knoppmyth's dragon setup since it uses this card. > > > >I got spdif output working but want to enable passthrough because all > >my recordings are HD and have AC3 or 5.1 Surround sound. > > > >Despite getting the spdif working (with device set to ALSA:spdif), > >when I check the "Enable AC3 to SP/DIF Passthrough" I get no sound. > > > >I've searched the archives and tried anything I could find. > > > >Setting the device to ALSA:plug:iec978 with "Enable ... Passthrough" > >checked gets me a loud buzzing sound. Other then that I get no > >sounds. > > > > > The plug plugin only works with 2-channel sound. > > >I'm at a loss as to what to try now. > > > > > What does your receiver say? The audio receiver should say something > about the mode of data it's receiving--"PCM" or "AC-3" or "Dolby > Digital" or something? It's most likely a problem with your > receiver/receiver configuration. > > Mike > ___ > mythtv-users mailing list > mythtv-users@mythtv.org > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users > When pass through isn't enabled, the reciever says PCM 48 or 44 depending on the source. When it is enabled it is blank, no channels lit, though If I watch it closely, I see a Dec. Er. Flash up right when I start playback. So I guess the Reciever is getting a signal, it just can't understand it. The reciever is a Sony STR-DE695. I intially set up in my computer room with an little bit older Sony reciever, and had no luck there either, though I can't remember how much time I spent on it. I'll look into the reciever, but it is auto-sensing as far as I know and just is plug and play pretty much no matter whats on the fiber. I'll try mplayer or xine with a nuv with surround and see how that goes. ___ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
Re: [mythtv-users] spdif working but not passthrough - AV-710
Byron Poland wrote: I have a chaintech AV-710, I am just setting it up, and used the asound.conf from knoppmyth's dragon setup since it uses this card. I got spdif output working but want to enable passthrough because all my recordings are HD and have AC3 or 5.1 Surround sound. Despite getting the spdif working (with device set to ALSA:spdif), when I check the "Enable AC3 to SP/DIF Passthrough" I get no sound. I've searched the archives and tried anything I could find. Setting the device to ALSA:plug:iec978 with "Enable ... Passthrough" checked gets me a loud buzzing sound. Other then that I get no sounds. The plug plugin only works with 2-channel sound. I'm at a loss as to what to try now. What does your receiver say? The audio receiver should say something about the mode of data it's receiving--"PCM" or "AC-3" or "Dolby Digital" or something? It's most likely a problem with your receiver/receiver configuration. Mike ___ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
[mythtv-users] spdif working but not passthrough - AV-710
I have a chaintech AV-710, I am just setting it up, and used the asound.conf from knoppmyth's dragon setup since it uses this card. I got spdif output working but want to enable passthrough because all my recordings are HD and have AC3 or 5.1 Surround sound. Despite getting the spdif working (with device set to ALSA:spdif), when I check the "Enable AC3 to SP/DIF Passthrough" I get no sound. I've searched the archives and tried anything I could find. Setting the device to ALSA:plug:iec978 with "Enable ... Passthrough" checked gets me a loud buzzing sound. Other then that I get no sounds. I'm at a loss as to what to try now. Thanks. ___ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
