Source:
Sets 1 & 4: AKG 483(ORTF/DFC/FOB)> Busman T-Mod R4 (24bit/48KHz) Sets 2 & 3 Matrix: SBD + AKG 483(ORTF/FOB)> Busman V/T Mod R4 (@ 24bit/48KHz)
Lineage:
R4>USB>Audacity (Time synch and 2 track stereo mixdown)>Soundforge 8.0 (resample to 16bit/44.1KHz)>CD Wave>.flac16