So as always have to put a reminder that SunVox is fully free for PC/Linux/Mac and the files are interchangable over all platforms.
For PC/Linux/Mac version:
* sound engine optimization;
* spectrogram has been added to the to the spectrum analyzer;
* MultiCtl: new controllers "Response" and "Sample rate" to smoothly change the output value;
* see full changelog on the site: http://warmplace.ru/soft/sunvox