[mythtv-users] How to get sound out via HDMI

Ashu Desai ashu.desai at gmail.com
Wed Mar 8 16:27:37 UTC 2017


On Wed, Mar 8, 2017 at 9:47 AM, Karl Newman <newmank1 at asme.org> wrote:

> On Wed, Mar 8, 2017 at 6:50 AM, Ashu Desai <ashu.desai at gmail.com> wrote:
>
>>
>> On Wed, Mar 8, 2017 at 7:09 AM, Daryl McDonald <darylangela at gmail.com>
>> wrote:
>>
>>>
>>> On Mar 7, 2017 11:23 PM, "Ashu Desai" <ashu.desai at gmail.com> wrote:
>>>
>>>
>>> On Tue, Mar 7, 2017 at 7:43 PM, Karl Newman <newmank1 at asme.org> wrote:
>>>
>>>> On Tue, Mar 7, 2017 at 5:16 PM, Ashu Desai <ashu.desai at gmail.com>
>>>> wrote:
>>>>
>>>>>
>>>>> So I checked and there is partial success. The audio now does come out
>>>>> via HDMI. However, the 5.1 doesn't work.
>>>>>
>>>>> It somehow thinks only 3 speakers are attached. And so F-L plays on
>>>>> F-L speaker. Center plays on F-L speaker. F-R plays on F-R speaker. Rear-L
>>>>> plays on F-L speaker and Rear-R plays on F-R speaker.
>>>>>
>>>>> Pls help...!
>>>>>
>>>>>
>>>> In the screen shot you showed it also had a selector for the number of
>>>> channels, which was set to 2 channels. Try toggling that and see if it
>>>> improves. Also, there is a command-line tool for alsa called speaker-test
>>>> which can help test your setup independent of MythTV. Try it with
>>>> "speaker-test -c 6" (the 6 is to indicate 6 channels). You may also have to
>>>> specify the device with -D.
>>>>
>>>> Karl
>>>>
>>>>
>>> Sorry - but that didn't do anything.
>>>
>>> the speake-test did the exact same thing. The sound comes out of center
>>> channel only when it thinks it's trying to go to rear and LFE.
>>>
>>> No sound comes at all via the rear speakers
>>>
>>>
>>> I think the speaker test was not supposed to be a solution in itself but
>>> a way to quickly test wether a change that you've just made in sound
>>> settings is better or worse.
>>>
>>>
>>>
>>>
>>>
>> Yep - I meant that showed the same thing. No change there.
>>
>> So as it stands - the sound isn't coming out of any back speakers and not
>> coming out right from the front speakers.
>>
>
> Are your receiver/amplifier settings correct *for that input*? Is there
> any way to see how many channels your receiver thinks it is getting from
> the HDMI? (Mine shows a diagram with the active speaker channels lit up).
>
> Karl
>

My receiver is set for HDMI - and the input shows all the channels. the
output diagram only shows the front ones - F-L, Center, F-R lit up

And like I said - the center sound comes off the F-L, R-L comes off center,
LFE comes off F-R, etc

Is there any setting in alsa where it's supposed to be changed? Anywhere in
drivers?


>
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-- 
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