Yamaha D24 Owner's Manual - Page 189

190 Chapter 17-Digital Audio I/O Care must be taken when transferring high-resolution digital audio directly from the D24's COAXIAL OUTPUT to a low-resolution device. In the following example, the 20-bit digital audio from the D24 will be truncated by the 16-bit DAT deck, resulting in distortion and graininess. D24 OVER -dB 0 2 6 10 12 14 20 18 30 20 42 26 60 READY 1 2 3 4 5 RECORD READY SOLO/ SELECT PEAK HOLD AUTO INPUT ALL INPUT MONITOR SELECT OVER 0 -dB 2 6 12 20 30 42 60 READY 0 0 0 0 0 0 0 0 ABS H M S F YAMAHA D24 LOCK WC INT FS 48K BIT 24 TC MASTER L R 6 7 8 7 8 9 PROJECT SELECT 4 5 6 LOC MEM RECALL FORMAT CHASE 1 2 3 LOC MEM STORE 0/- CANCEL ENTER LOCATE TIME DISPLAY CAPTURE ABS/REL REMAIN VARI SPEED UTILITY SETUP V. TRACK SELECT EDIT UNDO/ REDO JOG ON DIGITAL MULTITRACK RECORDER PROJECT SEARCH LAST REC IN OUT SET AUTO PUNCH RTN TO ZERO ROLL BACK A B REPEAT REHE AB REW FF STOP PLAY REC JOG/DATA SHUTTLE/ CURSOR POWER ON OFF 0 10 PHONES LEVEL PHONES Recording resolution: 20-bit DAT S/PDIF (20-bit) 00.00.00.00 DAT COAXIAL OUTPUT Digital In Recording resolution: 16-bit The 4 least-significant bits of each sample are discarded by the DAT, resulting in distortion. If the device receiving the high-resolution signal does not feature digital dither, an external digital audio processor with digital dither function can be used to truncate the signal, as shown below. D24 OVER -dB 0 2 6 10 12 14 20 18 30 20 42 26 60 READY 1 2 3 4 5 RECORD READY SOLO/ SELECT PEAK HOLD AUTO INPUT ALL INPUT MONITOR SELECT OVER 0 -dB 2 6 12 20 30 42 60 READY 0 0 0 0 0 0 0 0 ABS H M S F YAMAHA D24 LOCK WC INT FS 48K BIT 24 TC MASTER L R 6 7 8 7 8 9 PROJECT SELECT 4 5 6 LOC MEM RECALL FORMAT CHASE 1 2 3 LOC MEM STORE 0/- CANCEL ENTER LOCATE TIME DISPLAY CAPTURE ABS/REL REMAIN VARI SPEED UTILITY SETUP V. TRACK SELECT EDIT UNDO/ REDO JOG ON DIGITAL MULTITRACK RECORDER PROJECT SEARCH LAST REC IN OUT SET AUTO PUNCH RTN TO ZERO ROLL BACK A B REPEAT REHE AB REW FF STOP PLAY REC JOG/DATA SHUTTLE/ CURSOR POWER ON OFF 0 10 PHONES LEVEL PHONES Recording resolution: 20-bit COAXIAL OUTPUT S/PDIF (20-bit) DAT Digital In 00.00.00.00 DAT Recording resolution: 16-bit S/PDIF (16-bit) Digital audio processor with digital dither function D24-Owner's Manual