Hi.
A week ago, I released on the net the version 2.0 of paulstretch.
The base function of paulstretch is to stretch the sound by a huge amount (like 100x) while preserving the sound smooth.
As a new feature, it can do binaural beats, by shifting down a channel, while shift up the frequencies of the other channels (regardless of the input audio) - in fact this is a hilbert frequency shifter,