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  • MIR: Why does the mic position only affect the dry signal?

    I'm demoing MIR. The manual says that the microphone is a dry signal only, and my experimentation reflects that. Why is that? If I listen from different positions in a room, it's not just the dry/wet balance that changes – the actual wet signal would change as well... right?

    You are the experts, I'm just trying to understand this. I just find it really surprising that the microphone position has no effect on the wet signal.


  • Thanks for your interest in MIR Pro! Moving a micophone in a MIR Venue is purely virtual. Doing so will change the perceived position of the direct signal components and also the Ambisonics-decoding of the wet signal, but it won't load a new set of IRs (like moving an Instrument Icon on stage). OTOH, selecting a different microphone position in the same Venue will _of course_ load a whole set of multi impulse responses. The reason for this behaviour is quite obvious: We recorded IRs from many positions on a stage (therefore we can move the Icon freely in this area, triggering the use of different IRs with every move), while we had only three or four micophones in the hall, not dozens (or hundreds) of them. :-) Kind regards,

    /Dietz - Vienna Symphonic Library
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    @Dietz said:

    The reason for this behaviour is quite obvious: We recorded IRs from many positions on a stage (therefore we can move the Icon freely in this area, triggering the use of different IRs with every move), while we had only three or four micophones in the hall, not dozens (or hundreds) of them. :-)

    Not obvious to me or I wouldn't have asked 😛

    But, I think I see what I was missing.

    If I select the conductor position, it loads the conductor IRs. So when I drag the microphone icon all the way back to the gallery, it's still using the conductor IR – and that's why the wet sound doesn't change.

    So the microphone position affects the wet sound, and the microphone position and offset affect the dry sound.


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    @Another User said:

    So the microphone position affects the wet sound, and the microphone position and offset affect the dry sound.

    Yes. 


    /Dietz - Vienna Symphonic Library