5.1 encoded audio not downmixing correctly output on stereo TV

[MrNeedSomeHelp]

Hi Toleda

Wondered if you could spare a moment as I have an issue that I need guidance on.

For months I was able to watch videos encoded with 5.1 audio track on my stereo TV.

But now, for no apparent reason, I'm only getting the L R channels and not centre, I can't hear anyone talk.

I have tried everything I can think of with regards to settings in mac os x and on the TV, so I beginning to suspect i have a Hackintosh bug

NVIDIA driver is up to date and I have tried different HDMI cables

Your ideas would be most appreciated, thanks.
HP8300>Sierra>VLC>NVIDIA GTX 1050 Ti 4095 MB>hdmi>SAMSUNG TV

 

[toleda]

or months I was able to watch videos encoded with 5.1 audio track on my stereo T

What is your definition of 5.1 encoded audio?

for no apparent reason, I'm only getting the L R channels and not centre, I can't hear anyone talk.

MacOS does not touch the digital audio stream, passthrough only.

beginning to suspect i have a Hackintosh bug

Not a macOS issue.
VLC may be the issue. See AppleHDA Surround Sound [Guide]. Try other media players.

 

[MrNeedSomeHelp]

5 channels, front, left, right, rear left, rear right.

It Could be VLC, but it was working fine for 6 months

I'll look into the guide soon, thanks for sharing