[mythtv-users] HDMI ac3 passthough audio

[Andrew Close]

On Tue, Feb 10, 2009 at 11:50 AM, 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)"?
>> J
>
> I have had the exact same problem. Can get hdmi audio, but if I enable
> passthrough get clicking / pops

what distro are you guys using?
what version of ALSA are you using?
what sound processor/controller/card do you have in your system that
is feeding SPIF/HDMI?


-- 
Andrew Close