In the time domain, are audio samples LPCM? Or non-linear / compressed? Patrick Vlaskovits October 15, 2017 19:53 PCM. Audio DSP happens on raw PCM data in every audio system. Related articles Please tell me more about the buffer array. What is the data and how does it work on different platforms? Is there any example code to integrate Superpowered with a swift project? How can I print to console the max frequency (or the max band) every 10 ms or every time the frame updates? Comments 0 comments Article is closed for comments.