Hi,
Apologies for the delay. We thought we would try a few different satellite channels before replying.

Our problem, and that I believe of many others is as follows:


[*]We are using a surround sound processor in conjunction with a M HD621 and satellite receiver to listen to TV sound.

[*]The sound path is straightforward in that is passes from a satellite receiver through a M HD621 to a G61RSL surround processor. I have been careful to select HDMI 1.4 cabling and this has delivered amazing picture quality on a plasma set because of the feedback loop inherent in HDMI 1.4.

[*]Thereafter the sound is delivered to the listeners by two DSP5K's and a DSP 3300C. This is all very fine and we are happy with what we have constructed. In particular TV sound is now much more intelligible and better tweeters (I think) in the DSP5K's compensate for our diminished higher frequency auditory abilities (though they may just have the capacity to penetrate ethanol fumes).

[*]The only remaining problem is that different satellite channels produce hugely differeing sound levels. The latest test concluded that the difference is primarily between standard definition and high definition channels.

An ideal solution would be a change to the firmware of the HD621 or possibly selecting an appropriate codec to install in the HD621 but what do I know.

All the best,

Geoff

System 1. AVI S21 amplifier, Meridian 504 tuner, Meridian 218 zone controller, ATC SCM35 passive speakers.
System 2. HUMAX Freesat Foxsat receiver, Pioneer PDP427XD Plasma TV, UHD722,Apple TV, G61RSL, AC12, DSP3300 centre, 2 X DSP5000 96/24 Smileys.