Parallel Compression – Technical Questions

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  • #124175
    Profile photo of SnrubelSnrubel
    Participant

    When enabling parallel compression is the dry signal affected by the makeup gain setting? For example, if I increase makeup gain by 18dB, enable parallel compression and engage the compressor, then turn the wet signal to -inf and the dry to 0dB, is the dry signal affected by the 18dB gain setting? I guess the more general version of that question is whether the dry signal is affected by ANY of the compressor settings (assume ‘no’).

    Next question… if parallel compression is enabled, and assuming I have something like a perfect sine wave at 0dB coming from the preamp, then if both the wet and dry signal are added together (and the wet signal is held at 0dB by a combination of the variables), then the total signal would be +3dB? The more general version of that question I think is whether most of you are reducing the wet and dry signals by 3dB each when you are setting them at the same level in order to not overdrive the output?

    #124199
    Profile photo of KeithJ A&HKeithJ A&H
    Moderator

    @Snrubel

    Question 1 – No, The makeup gain is part of the compressor processing ‘block’ so does not affect the dry signal being blended with the wet in the parallel path.
    Question 2 – You can end up with a hotter signal out of the compressor when using the parallel path, but this is the same as if you only boosted bands in an EQ or used the makeup gain of the compressor to over compensate for compression. They’re all things you should be aware of, but there are no absolutes i.e. it’s not necessarily wrong to have both the dry and wet at 0dB (plus, there’s 18dB of headroom!).

    Thanks,
    Keith.

    #124216
    Profile photo of SnrubelSnrubel
    Participant

    This is very helpful! Thank you!!

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