On 4/9/20 10:56 AM, Peter Bennett wrote:
>
>
>
>>> To use AudioTrack on Android
>>>
>>> In the Android setup, choose "Automatic" or "Best Available". There
>>> is no need to force Dolby Digital in Android, it will be used
>>> automatically if your hardware supports it.
>>>
>>> Select "AudioTrack:" audio device. Enable all entries under "Digital
>>> Capabilities" and set the appropriate number of speakers. Android
>>> will detect whether your TV or sound system supports the audio
>>> format and will either pass it through or decode it within android
>>> hardware. So for example you can select Dolby Digital even if your
>>> sound system, TV or display monitor does not support it and android
>>> will decode it. If you do not select the checkbox, MythTV will
>>> decode it.
>>>
>>> I have tested Dolby Digital (AC-3). I cannot test multi channel
>>> LPCM, DTS, E-AC3, etc. If anybody can test these it would be
>>> appreciated. In particular, testing multi-channel LPCM is needed to
>>> make sure the channel mapping is correct.
>>>
>>> Let me know if there is any feedback.
>>>
>>>
>>> I configured my shield frontend to have all digital formats and set
>>> the Shield to auto. It seemed like all was working until today my
>>> wife reported a video that has AC-3 audio that wouldn't play any
>>> sound. If I uncheck AC-3 in mythtvsetup, I get the audio.
>>> Additionally, in leanfrontend it plays with audio just fine.
>>>
>>>
>>> According to the manual for my receiver, it does support all of the
>>> digital audio formats in the mythtv screen.
>>>
>>>
>>> Are these instructions still accurate? Any thoughts on debugging
>>> further?
>>>
>>>
>>> Michael
>>>
>>>
>>>
>> I will try this again and let you know. It should work, but later
>> changes may have introduced a problem.
>>
>> Peter
>
> I just tested on the Shield with mythfrontend V31.0 (same apk as on
> bintray). I selected "Auto" under surround sound in the Shield Setup.
> I selected AudioTrack: in MythTV, selected Dolby Digital and DTS in
> "Digital Audio Capabilities", selected 5.1 in speaker setup.
>
> AC-3 plays fine, and displays "Dolby Digital" in the audio receiver
> display.
>
> I found, if I select "Stereo" in the Shield setup and still have Dolby
> Digital selected in MythTV, that I get no sound, but that is an
> invalid configuration.
>
> Perhaps your sound system is telling the shield that it does not
> support ac-3. You could try the "Manual" audio setup in shield setup
> and select AC-3.
>
> Are you sure you have selected AudioTrack: in MythTV? OpenSles does
> not support any surround sound formats. Also check the number of
> speakers setup.
>
> Peter
Hi Peter,
I did confirm that I do have audiotrack selected and 5.1 as my speaker
setting which matches my setup. I am ok if my receiver doesn't
support AC-3 or if it doesn't report it correctly. I think it is just
contrary to the note above that says the android device will either pass
through or decode it for you.
Michael
>
>
>
>>> To use AudioTrack on Android
>>>
>>> In the Android setup, choose "Automatic" or "Best Available". There
>>> is no need to force Dolby Digital in Android, it will be used
>>> automatically if your hardware supports it.
>>>
>>> Select "AudioTrack:" audio device. Enable all entries under "Digital
>>> Capabilities" and set the appropriate number of speakers. Android
>>> will detect whether your TV or sound system supports the audio
>>> format and will either pass it through or decode it within android
>>> hardware. So for example you can select Dolby Digital even if your
>>> sound system, TV or display monitor does not support it and android
>>> will decode it. If you do not select the checkbox, MythTV will
>>> decode it.
>>>
>>> I have tested Dolby Digital (AC-3). I cannot test multi channel
>>> LPCM, DTS, E-AC3, etc. If anybody can test these it would be
>>> appreciated. In particular, testing multi-channel LPCM is needed to
>>> make sure the channel mapping is correct.
>>>
>>> Let me know if there is any feedback.
>>>
>>>
>>> I configured my shield frontend to have all digital formats and set
>>> the Shield to auto. It seemed like all was working until today my
>>> wife reported a video that has AC-3 audio that wouldn't play any
>>> sound. If I uncheck AC-3 in mythtvsetup, I get the audio.
>>> Additionally, in leanfrontend it plays with audio just fine.
>>>
>>>
>>> According to the manual for my receiver, it does support all of the
>>> digital audio formats in the mythtv screen.
>>>
>>>
>>> Are these instructions still accurate? Any thoughts on debugging
>>> further?
>>>
>>>
>>> Michael
>>>
>>>
>>>
>> I will try this again and let you know. It should work, but later
>> changes may have introduced a problem.
>>
>> Peter
>
> I just tested on the Shield with mythfrontend V31.0 (same apk as on
> bintray). I selected "Auto" under surround sound in the Shield Setup.
> I selected AudioTrack: in MythTV, selected Dolby Digital and DTS in
> "Digital Audio Capabilities", selected 5.1 in speaker setup.
>
> AC-3 plays fine, and displays "Dolby Digital" in the audio receiver
> display.
>
> I found, if I select "Stereo" in the Shield setup and still have Dolby
> Digital selected in MythTV, that I get no sound, but that is an
> invalid configuration.
>
> Perhaps your sound system is telling the shield that it does not
> support ac-3. You could try the "Manual" audio setup in shield setup
> and select AC-3.
>
> Are you sure you have selected AudioTrack: in MythTV? OpenSles does
> not support any surround sound formats. Also check the number of
> speakers setup.
>
> Peter
Hi Peter,
I did confirm that I do have audiotrack selected and 5.1 as my speaker
setting which matches my setup. I am ok if my receiver doesn't
support AC-3 or if it doesn't report it correctly. I think it is just
contrary to the note above that says the android device will either pass
through or decode it for you.
Michael