"hacking" SAM to do convolution

[ogs]

@RayMo this is not room correction, but parametric equalising. Can be done without convolution. In Roon I use both convolution and PEQ. Convolution with filters from Audiolense takes care of maybe 99%. PEQ is used to fix a few small things (mostly in the bass region), but I could do fine with just convolution. Many years ago Devialet offered to create amplitude correction, i.e. EQ in DSP, but they no longer do this.