After an upgrade to the latest two betas versions the audio of the mpeg 2 video didn't play, it was fine in with v8.2.5.
TV and AVR are receiving PCM audio with 28kHz.
Muting was off!
Audio settings in expert mode look fine.
The default setting button solved the problem, audio device, channels etc. didn't change.
MediaInfo
ID : 2
ID in the original source medium : 189 (0xBD)160 (0xA0)
Format : PCM
Format settings : Little / Signed
Codec ID : A_PCM/INT/LIT
Duration : 1 h 29 min
Bit rate mode : konstant
Bit rate : 1 536 kb/s
Channel(s) : 2 Kanäle
Sampling rate : 48,0 kHz
Frame rate : 30,000 FPS (1600 SPF)
Bit depth : 16 bits
Stream size : 987 MiB (24%)
Title : Stereo
Language : Englisch
Default : Ja
Forced : Nein
Originales Source-Medium : DVD-Video