In normal sound work we use three speakers to playback high, middle, and low frequency sound signal. We use persistence and pole brace. Now we have different way to separate sound signal. Use a PC to get wave file data by a computer program. And then process science calculation to separate sound signal to high, middle, low frequency channel and send to three sound cards to playback. If you can install three sound cards on your PC, you can playback sound file correctly. When sound signal pass persistence, there is a degrees 180-phase change. When signal pass a pole brace, there is a degrees 180-phase change in another way.
Version 3.8.2 may include unspecified updates, enhancements, or bug fixes.