At Fri, 03 Jul 2009 20:07:09 +0200, Stéphane BERTHELOT wrote: > > Takashi Iwai a écrit : > > At Wed, 01 Jul 2009 11:18:15 +0200, > > Stéphane BERTHELOT wrote: > > > >> Takashi Iwai a écrit : > >> > >> At Tue, 30 Jun 2009 22:51:03 +0200, > >> Stephane BERTHELOT wrote: > >> > >> Hm, so apparently your TV doesn't accept non-audio format? > >> But TV accepted the ac3dec output with -R option, right? > >> (Make sure this -- otherwise ac3dec might have decoded by itself.) > >> > >> Basically, -R means to send the encoded an AC3 stream (packed in the > >> SPDIF format) without setting non-audio bit. Whether non-audio bit is > >> 1 or 0 is the only difference between -C and -R. So, if -R really > >> works but not -C, it means that the non-audio bit must be off no > >> matter what you send. Weird. > >> > >> I'm sure the TV only accepted -R and not -C (or -P) with the same ac3 file. > >> But I'm confused since I was quite sure -R would *decode* ac3 to PCM and then > >> send it in LPCM format. > >> > > > > Ah, yes, of course. That's logical, then, that -R works. > > > > Hm, then it's an issue of receiver side? > > Can Windows send the raw AC3 and TV decodes it properly? > > > > > > Takashi > > > > > > > Thanks you Takashi, > > After investigating on the Windows side (damn!) I finally found that > with the latest Nvidia official HDMI audio out drivers I was also > receiving only stereo PCM. > I'm very angry against Sharp since their TV set outputs AC3 when > switched on DVB tuner mode, it even offer "digital audio out settings" > on analog inputs (scart / component /...) but strangely this menu is no > more available when on an HDMI channel. > I'm very upset about this, since this TV set is about 6 months old seems > already deprecated. > I'm trying to get someone at Sharp service to make an upgrade to get > digital audio through HDMI to the optical output but I have little hope > about this. I still can't figure why they do that, is it a digital > entertainment system or not ? My old frist-gen dvd player does better ... > > Thanks anyway for your help and if you can give me some hints about how > to convince Sharp to make an upgrade for this I will be welcome. I'm > pretty sure some other users have had the same kind of problems... > > I now need either to buy an USB audio card with SPDIF out (or in/out) or > an HDMI switch (some have spdif out) or even a real new HD Audio Amp, > but this is getting more and more expensive ... Hm, but you can basically decode on PC and send multi-channel LPCM over HDMI. Isn't it enough? Or, maybe not, depending on the setup... Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
