DCS dCS 974, Digital to Digital Converter Demultiplexing a 24/96 Dual AES recording (Bit for Bit), AES, AES, do this:, do this:, do this:, Format Conversion settings:

dCS 974 User Manual	Manual for Software Version 1.0x
dCS Ltd	May 2001

Demultiplexing a 24/96 Dual AES recording (Bit for Bit)

From 24 bit / 96kS/s		Ensure AES 1 & AES 2
Dual AES source		are connected correctly
		AES 1 = Left data
		AES 2 = Right data
	AES / EBU INPUTS				AES / EBU REFERENCE LOOP		SPDIF
PUSH	PUSH	PUSH	PUSH		PUSH	IN	OUT
							RCA
					IN	OUT
AES 1	AES 2	AES 3	AES 4	AES CLK OUT		SYNC INPUT	BNC
							TOS

DSD / SDIF

CH1 IN	CH2 IN	REMOTE
		IN
WCLK IN	LOOP OUT
		LOOP
		OUT
CH1 OUT	CH2 OUT	MAINS FUSE (2AT) ON OFF
LOOP IN	WCLK OUT

AES / EBU OUTPUTS

24 bit / 96kS/s from	24 bit / 96kS/s	24 bit / 96kS/s
4 independent AES outputs	from 3 independent	SDIF-2 output
	SPDIF outputs

Figure 7 – Converting dual AES 24/96 to a single wire double speed one

The dCS 974 converts a 96 kS/s 24 bit Dual AES input to a double speed 96 kS/s 24 bit signal available from any or all of the 4 AES, 2 electrical SPDIF, optical SPDIF or SDIF-2 outputs. When using the Format Conversion menu, the operation is bit for bit on the audio data (messages can be edited).

do this: Connect Nagra-D, Genex G-8000, SADIE, Lake DSP, etc dual AES source to inputs AES 1 and AES 2 on the dCS 974.

do this: Load the setup from Store J and set Pure Format Conversion to On, or use settings below.

do this: Output from any AES output or any of the SPDIF outputs or, using two data cables and one clock, via the SDIF-2 outputs. The outputs will all be at “double” speed.

Format Conversion settings:
Pure Format Conversion:	On
Audio Input Select:	Dual AES
Sync Source:	Audio Input
Input Sample Rate:	Auto (96 kS/s)
Output Sample Rate:	96 kS/s
Output Mode:	Normal
AES Message Edit:	Professional On, Non-Audio Off
	Mode: Stereophonic
SPDIF Message Edit:	Professional On, Non-Audio Off, Copy
	Permit On
	Format: 2-Ch Gen Format

Manual part no: DOC1241121A1 Page 23 Document No: OS-MA-A0124-112.1A1

Contact dCS on + 44 1799 531 999	email to: more@dcsltd.co.uk
(inside the UK replace + 44 with 0)	web site: www.dcsltd.co.uk