mmkw43
Posts: 699
Joined: Tue Dec 24, 2013 6:18 pm

PI3 HDMI audio -- only "some" tv's?

Mon Nov 02, 2020 10:49 pm

It's been a long while so it's hard to remember but I have a python script that calls mpg321 to play some files and when I was doing this, (if I remember right) I was having problems with the HDMI audio on some televisions (as I'm having right now). The audio is cut off considerably and I only hear a small portion of the end of the short file. I thought it was code but now remember I had this problem a few years ago.

Anyone know what I'm talking about? And if so, what's the deal on that please? -- very frustrating
thanks.

mmkw43
Posts: 699
Joined: Tue Dec 24, 2013 6:18 pm

Re: PI3 HDMI audio -- only "some" tv's?

Mon Nov 02, 2020 10:52 pm

and no it's not a cable issue.

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scruss
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Re: PI3 HDMI audio -- only "some" tv's?

Mon Nov 02, 2020 10:57 pm

your tv/monitor has automatic volume control. My Asus monitor on my desktop has that: very short sounds don't play at all. I'm sure there's a menu command to turn it off.
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mmkw43
Posts: 699
Joined: Tue Dec 24, 2013 6:18 pm

Re: PI3 HDMI audio -- only "some" tv's?

Tue Nov 03, 2020 12:00 am

ok thanks will check it out -- yes, these are just 2 or 3 second files.

mmkw43
Posts: 699
Joined: Tue Dec 24, 2013 6:18 pm

Re: PI3 HDMI audio -- only "some" tv's?

Tue Nov 03, 2020 12:45 am

I've come to the conclusion that it has something to do with a poorly designed HDMI section in some TV's. Some TV's work just fine -- some don't but will for a bit manipulating the connector and that's using the same cable but it's not just mechanical -- you can hear it's the flawed HDMI electronics/software also.

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