Importing DPCM samples

It is possible to import wave files (PCM) and convert them to 1-bit DPCM samples. The format of PCM-samples must be raw PCM, no compressed formats are supported. Sample rate and sample size doesn't matter. Choose import in the DPCM instruments dialog, select a file and a new dialog will come up where you choose quality and volume.

Quality - This is related to the pitch setting in the DPCM instrument editor, use the same to play the sample at original pitch. Quality of 15 will give best result, but samples can only be a little less then one second.

Volume - Sets the conversion volume level, a higher level helps removing noise.

Max size of DPCM samples are 4 kB, at quality 15 (33 kHz) it's a little less than one second and lowest quality (4 kHz) about eight seconds.