VST plugins to impulse responses (suitable for HQPlayer convolution engine)

[Miska]

On 10/5/2020 at 8:26 PM, bogi said:

@Miska, I found your 4 years old post and now I probably understood what you meant.

So my current understanding is: (assume the IRs to be created are intended to be used with stereo content):

1. I will play test tone with few seconds delay at the end at first on left channel, but the result will be stereo. It is because there is some intended crosstalk the filter does, which is needed for the effect to work. Actually that intended and wished type of crosstalk is called crossfeed. So I need to create IRs from both output channels for input left channel.

2. Then I need to do the same for the right channel.

3. Now we have 4 IR files and it comes to the Matrix pipeline you pointed to in the "Tilt Control" thread. Left side response from the left side source channel has to be mixed with left side response of the right side source channel. Right side response from the right side source channel has to be mixed with right side response of the left side source channel.

Something like this:

 

 

Is such a procedure sufficient for all types of crossfeed or binaural type of plugins? Does any category of plugins/filters exist where such a procedure would not be sufficient?

 

Hard to say exhaustively to "all", but for most yes. There are some DSP plugins that are not described by transfer function, such as dynamic range compressors. Also other non-linearities like distortion generators cannot be done this way. Things that depend on amplitude/phase response (including delays like reverbs) can be processed this way.