[mythtv-users] AndroidTV and leanfront: occasional 'ear-protection' limit

John Pilkington johnpilk222 at gmail.com
Fri May 12 15:11:14 UTC 2023

On 12/05/2023 14:25, Peter Bennett wrote:
> On 5/10/23 16:03, John Pilkington wrote:
>> On 10/05/2023 19:32, Dan Ritter wrote:
>>> John Pilkington wrote:
>>>> I've come across a minor playback quirk with leanfront on my Sony 
>>>> Android
>>>> TV, which drives my vintage stereo system from its headphone 
>>>> socket.   The
>>>> Android version is 11, device name BRAVIA TL and its firmware date 
>>>> is now
>>>> 2022 Nov 16.
>>> Is it possible that the TV has a stereo pair of RCA jack outputs on the
>>> back? If so, that would be a preferable output to your music
>>> system, and shouldn't pass through the TV's limiter function at
>>> all.
>>> -dsr-
>> Thanks for the suggestion, but I think the answer is No.
>> The supported Audio outputs appear to be HDMI ARC and digital optical, 
>> both two channel linear PCM 48 kHz 16 bits, or Dolby Audio.
>> A footnote tells me to 'Connect your audio system to the HDMI IN 1 to 
>> route TV audio to your audio system'.  Strangely, my stereo doesn't 
>> have an HDMI socket.
>> Even the headphone socket seems to be an endangered species now. 
>> Headphones are wireless and audio systems are soundbars or other 
>> digital exotica.  I expect I shall stay with what I've got.
>> Cheers,
>> John
> I am confused. I thought that a Sony Android TV was a TV with android 
> built in. So you are driving your stereo from the TV headphone socket, 
> but the second and third emails say that you are not. Are you running 
> leanfront on the TV or on something else?
> Peter
I'm fairly sure that the 'ear-protection' drops in volume have been 
while running leanfront on the TV's hardware under its Android OS, but 
the info above was copied from the TV user's manual (and I could quote 
it in 18 other languages).

leanfront gets its content via ethernet, but the TV also has 3 HDMI 
inputs as well as DVB and network sources.  One HDMI input comes from 
the nVidia card in the Myth FE/BE Fedora box and can display content 
from that by mythfrontend, mpv, vlc, browsers, terminals etc.

I find it easy to choose what I'm using, but it wouldn't be a 
family-friendly setup.  It's even worse when feeding an HDMI input from 
a FireStick, with two different remotes in action.  I don't usually do 
that now.

Whatever, I think the ear-protection experience is an Android OS 
feature.  The popup display shows a headphone symbol; it actually shows 
TV-audio gain rather than absolute output level.

Sorry for the confusion.


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