[mythtv-users] mythmusic iec958 help

[Alen Edwards]

Nick Rout wrote:
> On Tue, Jul 1, 2008 at 12:30 PM, Bob <mythtv at cox.net> wrote:
>   
>> Gregg wrote:
>>     
>>> I have the default settings in mythv general setup as ALSA:iec958 with
>>> ac3 and dts passthrough checked,  and mythmusic generates the errors
>>> posted before.  Could it be something in my .asoundrc file?  I have
>>> been battling this for a couple of weeks now.
>>>
>>>
>>>
>>>       
>> I know very little about this, but if memory serves me you need to use
>> the asound file to tell alsa to resample from 44.1kHz to 48kHz or vice
>> versa.  HTH.
>>     
>
> By the look of the error message given that is indeed the problem.
> Most digital audio decoders only work at 48000 (or 96000) Hz, whereas
> the CD standard is 44100 Hz. It is indeed possible to get alsa to
> resample, but don't ask me how off the top of my head. asound files
> seem like a real black art to me, there are plenty of examples around
> the intarweb, but no really simple documentation that I have been able
> to find/understand about what is really going on.
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>   

I don't think he wants alsa to do anything.   He has passthrough 
checked.  alsa should not be doing anything except passing the data to 
the output.  Something is telling alsa to process the data and the data 
rates then become a problem.  At least, that is my understanding of it.

Allen

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