Yamaha D24 Owner's Manual - Page 185

186 Chapter 17-Digital Audio I/O Using Dual AES/EBU Mode When using the higher sampling rates of 88.2 kHz and 96 kHz, the number of tracks is reduced from eight to four and the available tracks are 1, 3, 5, and 7. Project, track, and part editing functions are not available in this mode. For digital I/O, the D24 uses what's known as Dual AES/EBU mode, in which the wordclock frequency is exactly half that of the sampling rate. With a sampling rate of 96 kHz, for example, the wordclock frequency is 48 kHz. Digital I/O in Dual AES/EBU mode is only available with AES/EBU mini YGDAI cards. In Dual AES/EBU mode, each AES/EBU format digital I/O signal is split in two, requiring two transmission channels. Normally, two AES/EBU format signals, left and right, for example, are transmitted by a single balanced connection. In Dual AS/EBU mode, however, only one AES/EBU format signal can be transmitted per connection. The following table shows which tracks and AES/EBU inputs and outputs are used in Dual AES/EBU mode. D24 Track 1 3 5 7 AES/EBU Inputs 1/2 3/4 5/6 7/8 AES/EBU Outputs 1/2 3/4 5/6 7/8 The adjacent illustration shows how external equipment, in this case a 2-channel AD/DA converter that supports Dual AES/EBU, can be connected to the D24 for Dual AES/EBU operation. A custom breakout cable is used to connect the D24 and converter. Each XLR connection handles a single AES/EBU signal, so 2-track recording and playback is possible. The sampling rate is 96 kHz and the wordclock frequency is 48 kHz. D24 (wc slave: SLOT 1 DUAL) 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 mYGDAI: AES/EBU (SLOT 1) AES/EBU In AES/EBU Out Shown below is an AES/EBU breakout cable similar to the one used in this system. 25-pin D-sub connector AES/EBU breakout cable AD/DA converter (wc master) Sampling rate: 96 kHz Dual AES/EBU mode I/O Female XLR x4 TRK 1 (outputs 1/2) TRK 3 (outputs 3/4) TRK 5 (outputs 5/6) TRK 7 (outputs 7/8) TRK 1 (inputs 1/2) TRK 3 (inputs 3/4) TRK 5 (inputs 5/6) TRK 7 (inputs 7/8) Male XLR x4 D24-Owner's Manual