[mythtv] Audio distortion issue on Nvidia Shield

Peter Bennett pb.mythtv at gmail.com
Sun Nov 18 21:46:53 UTC 2018



On 11/18/18 4:35 PM, Michael wrote:
> On 11/13/18 9:06 PM, Michael wrote:
>>
>> Hi Peter,
>>
>>
>> I was wondering if you had any other thoughts on the issue I was 
>> having with my shield.
>>
>>
>> I currently have stereo upmix turned off on the shield.    If I play 
>> videos, randomly I get this screeching noise when starting a video or 
>> some times after fast forwarding.    Rewinding or pausing for 3-4 
>> seconds often fixes the issue (until a commercial skip, etc ).
>>
>>
>> Tonight I decided to do a little more testing.  I turned on stereo 
>> upmix and I could essentially ONLY get the screeching sound so I 
>> obviously turned that back off.   Should it also be off in the mythtv 
>> settings?
>>
>>
>> I did recently update to the 
>> mythfrontend-20181102-arm64-v30-Pre-921-g35f94663d71 version w/ no 
>> change in behaviour.
>>
>
> Just another data point.   I bought another Shield TV this week for 
> the loft TV.    Very different TV model and same receiver brand ( but 
> different model ).
>
>
> I started with a new fresh profile and am having the same audio issues 
> with this one too.
>
>
> I never had issues with either of these TVs or receivers with the old 
> minimyth2 frontends.
>
>
> Michael
>
>
In Audio setup, under Digital Audio capabilities, do you have anything 
selected? Disable all of the check boxes there (Dolby Digital, etc.). 
Also turn off stereo upconvert and set speaker configuration to Stereo.

Peter


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