Sound Designer II Digidesign continued to improve the software, and moved into the 2 track, and then the multitrack computer based recording market (Sound Tools, then Pro Tools). Sound Designer II was introduced with improved computer editing and DSP functionality, and with more samplers supported than ever. However as Sound Designer II was further developed, after version 2.5 sampler support was dropped completely. SD II supports a range of samples rates, 8 - 24 bits, mono and stereo samples. The Emax (RS422), Emax II (RS422), Emulator II (RS422), Emulator III (SCSI) and SP1200 (Sample Dump over MIDI) are fully supported.