Bitter Sweet is a free dynamics processor to manage audio transients. Turning the central button on the sweet side, decreases the transients amplitude. On the bitter side, the transients amplitude is magnified. Bitter Sweet also features a control for the signal to be processed. When the main position is engaged, the process affects the stereo signal. If Center is engaged, only the M signal of the internal MS matrix is processed. If stereo is selected, only the S signal from the MS matrix is processed.