[mythtv-users] HDMI ac3 passthough audio
means.joel at gmail.com
Tue Feb 10 18:20:01 UTC 2009
On Tue, Feb 10, 2009 at 11:11 AM, Allen Edwards
<allen.p.edwards at gmail.com> wrote:
> On Tue, Feb 10, 2009 at 10:07 AM, Steven Adeff <adeffs.mythtv at gmail.com> wrote:
>> On Tue, Feb 10, 2009 at 12:50 PM, James Armstrong
>> <james at thearmstrongs.org> wrote:
>>>> I think that the answers given don't address what the issue is here.
>>>> I am not at home, so I can't try the given line out, but I will tell
>>>> you my problem with audio over HDMI. I can get regular audio to work
>>>> using hw:0,3 or any number of variations on that. I cannot, however,
>>>> get S/PDIF passthrough to work over HDMI, only over my standard
>>>> optical out. I always just get clicking noises. It is passing the
>>>> digital as an analog signal. I think the key in the line JP used is
>>>> "alsa:device=iec958=1". In alsamixer, I have "iec958", "iec958
>>>> default", and "iec958 1" all listed but I have never found how to tell
>>>> anything to use "iec958 1" as the device. I will try it out tonight
>>>> and see if it will give my proper passthrough or not, but I think that
>>>> this may be the problem. So, the question then would be, is there any
>>>> way to address "iec958 1" as the passthrough device, a la
>>>> "ALSA:iec958(AES0 0x02)"?
>>> I have had the exact same problem. Can get hdmi audio, but if I enable
>>> passthrough get clicking / pops
>>> - James
>> again, I would use the plughw number for the device you want to use
>> instead of playing with ALSA's naming scheme.
>> Before you ask, read the FAQ!
>> then search the Wiki, and this list,
>> Mailinglist etiquette -
>> mythtv-users mailing list
>> mythtv-users at mythtv.org
> Does the post I did earlier with the new simplified digital output
> apply to these problems?
> mythtv-users mailing list
> mythtv-users at mythtv.org
No, I have tried all of that stuff before. But, like I said, I
haven't yet tried with "alsa:device=iec958=1" either, so it may be
that I just can't pass S/PDIF over HDMI on my motherboard. I will
check it out tonight and report back here.
And Steven, I have tried plughw and it gives the same result.
More information about the mythtv-users