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dCS 974 User Manual Manual for Software Version 1.0x
dCS Ltd May 2001
Manual part no: DOC1241121A1
Page 24
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
Upsampling a CD
24 bit / 96kS/s (or 192kS/s)
Dual AES to DAC
DIGITAL OUT
L
R
Hand Crafted by
The Red Hot CD Player Co.
CLOCK IN
16 bit / 44.1kS/s digital audio
PUSH PUSH PUSH PUSH PUSH
AES / EBU INPUTS
AES / EBU OUTPUTS
AES 1 AES 2 AES 3 AES 4
IN OUT
AES CLK OUT SYNC INPUT
AES / EBU REFERENCE LOOP SPDIF
IN OUT
RCA
BNC
TOS
CH1 IN
WCLK IN
CH1 OUT
LOOP IN
CH2 IN
LOOP OUT
CH2 OUT
WCLK OUT
REMOTE
IN
LOOP
OUT
MAINS FUSE (2AT) ON OFF
DSD / SDIF
Figure 8 – Upsampling a CD to 24/96 (or 24/192)
The dCS 974 converts a 44.1 kS/s 16 bit SPDIF input to a Dual AES 96 kS/s 24
bit signal available from AES 1 & AES 2 outputs. There is no information added
in the process, although you may wish to check theory here.
do this: Connect a source of CD material to the RCA input on the dCS 974.
do this: Enter the Sample Rate Conversion settings below.
do this: Connect Dual AES data from both AES 1 and AES 2 outputs to a DAC of your
choice.
do this: If your DAC is a dCS Elgar, dCS Delius or dCS 954, you can set the Output
Sample Rate to 192kS/s instead.
Sample Rate Conversion settings:
Sample Rate Conversion: On
Audio Input Select: SPDIF 1
Sync Source: Audio Input
Input Sample Rate: Auto (44.1 kS/s)
Output Sample Rate: 96 kS/s
Output Mode: Dual AES
Filter: Filter 2
Output Wordlength: 24
Noise Shaping: Off
Dither: Off
Detect Silence: Off
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