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LFE Mixing: Question and potential Enhancement

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stewart_pk:
Hi, I have a 4.0 setup but want to mix LFE into my mains but not the surrounds.
This does not present a problem for video with audio tracks (e.g. 5.1, 6.1, 7.1).
I can high pass the left surround channel and add it to the left channel and high pass my right surround and add it the right channel.
In this scenario I believe that the JRSS mixer is adding 10dB to the LFE (.1) channel which it should.
All good?

When it comes to playing audio only tracks (e.g. 5.1, 6.1, 7.1) which I have playing in a seperate zone are these tracks also getting the LFE (.1) track boosted by 10dB?
And if so should they?
Is the same standard of -10dB on the LFE (.1) channel to be boosted later by 10dB applicable to audio only tracks (music)?
I think JRSS is boosting the LFE (.1) by 10dB for audio only tracks (music) and it shouldn't be.

What I might be potentially asking for is a switch on the JRSS mixer called "Don't add 10dB to LFE channel when mixing".

Hendrik:
The nature of the LFE channel means that it should generally always be boosted, so that one single channel can compete with potentially 5 or 7 other channel in volume.

stewart_pk:

--- Quote from: Hendrik on June 09, 2022, 07:35:34 am ---The nature of the LFE channel means that it should generally always be boosted, so that one single channel can compete with potentially 5 or 7 other channel in volume.

--- End quote ---

If so would that mean that the maximum volume the LFE channel is mixed to is -10dB below full scale?

mattkhan:

--- Quote from: stewart_pk on June 09, 2022, 10:09:27 pm ---If so would that mean that the maximum volume the LFE channel is mixed to is -10dB below full scale?

--- End quote ---
a film soundtrack is mixed knowing that the LFE channel will be played back +10dB louder than the main channels after calibration. In an av processor, this is typically an analogue gain stage but in MC it would have to be achieved by attenuating the main channels instead. It should be easy to verify if JRSS is doing this by recording the output from MC.

stewart_pk:

--- Quote from: mattkhan on June 10, 2022, 02:12:28 am ---a film soundtrack is mixed knowing that the LFE channel will be played back +10dB louder than the main channels after calibration. In an av processor, this is typically an analogue gain stage but in MC it would have to be achieved by attenuating the main channels instead. It should be easy to verify if JRSS is doing this by recording the output from MC.

--- End quote ---

Hi, I know that the LFE channel needing to be played back +10dB louder for VIDEO tracks.
My question was about AUDIO surround tracks which is still unaswered.

I don't think JRSS is attenuating the other channels when it mixes in the LFE, but I could be wrong, it would be good to know.
And I suspect that JRSS doesn't just mix the LFE into the main channels it mixes it into all channels.
If so, this has long been one of my please change requests.
It really should just mix them into the main L and R channels (by default) because I think it's fair to say that the majority of 4.0, 5.0, 6.0 etc setups have larger mains than the other speakers which are better suited to LFE.

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