Weird volume behaviour

[tonybonner]

The other night I stumbled into channel 57 (U&Eden) - not a channel I normally watch - while Kessler was on and it was VERY LOUD. So, I turned the volume down - or at least I tried to. The Humax volume bar went all the way
down to 0 but the sound remained VERY LOUD. I tried several other channels and the volume control behaved as expected then returned to ch57 and the problem remained. As I wasn't interested in the programme I moved on
and put it down to being 'one of those things'.
However , last night I thought I'd check again and there was still the same issue with Kessler on ch57. Haven't checked it at other times to see if ch57 is always like that but it seems pretty weird.

Just wondered if anybody else has experienced the same behaviour? Not overly-fussed about it - just curious.

 

[prpr]

Depends what channels you normally watch I suppose.
You have Digital Audio Output set to Multi-Channel in the Settings/Preferences/Audio menu and you have selected a service on PSB3.
This happens with all the HD channels, so I guess you don't watch any of them, and the three SD services thereon - namely 46 5SELECT, 57 U&Eden, 69 LEGEND XTRA.

 

[Black Hole]

From a long time ago (but nowhere near as long as we've known about this):

Here's what happens with HDR-FOX (may be the same with 5000T): if the audio preference is set to "multichannel" (ie surround sound), the audio feed output to HDMI is taken directly from the broadcast stream so as to preserve the surround sound information when the service is capable - ie a HiDef channel. The sound stream is accompanied by command codes to tell the TV (or whatever) what the volume control setting should be.

All StDef services, or all services (including HiDef) if the audio preference is set to "stereo", are converted to PCM for the HDMI output, and the PCM is scaled according to the volume setting.

This means that if the TV (or amp) is not capable of interpreting the volume commands, the HiDef services will be presented at full volume unless the audio preference is set to "stereo" (at which point you lose any surround sound). You have the choice of setting the volume using the TV (set the volume on the Humax to maximum), or settling for stereo.

Two work-arounds:

1. Set HDR-FOX audio to stereo not multichannel; or...

2. Set HDR-FOX volume to max and only control volume using the TV's remote.

 

[MymsMan]

2. Set HDR-FOX volume to max and only control volume using the TV's remote.

I do this and have also disabled the VOL buttons on the Humax remote incase I forget