dCS 974 User Manual

Manual for Software Version 1.0x

dCS Ltd

May 2001

 

 

Converting Quad AES to CD Format

24 bit / 176.4kS/s Quad AES

Optional 44.1kS/s Wordclock

from 8-track recorder

to 8-track recorder

 

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

 

AES / EBU OUTPUTS

 

 

 

 

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

 

16 bit / 44.1kS/s (CD format)

Figure 12 – Converting Quad AES to CD format

You can archive in 24 bit / 176.4kS/s or 192kS/s Quad AES format using a standard 8-track digital recorder, then convert to other formats such as Red Book CD.

Sample Rate Conversion settings:

Sample Rate Conversion: On

Audio Input Select:

Quad AES

Sync Source:

Audio Input

Input Sample Rate:

Auto

Output Sample Rate:

44.1kS/s

Output Mode:

Normal

Filter:

Any

Output Wordlength:

16

Noise Shaping:

9th Order

Dither:

NS Triangular

Detect Silence:

On

Provided the Output Sample Rate is set to one quarter of the Input Sample Rate (i.e 176.4kS/s ⇒ 44.1kS/s or 192kS/s ⇒ 48kS/s), you can reduce jitter by using the dCS 974 as the master clock and locking the recorder to it. Change Sync Source to Internal, connect WCLK OUT (lower block) to the recorder’s Wordclock input and set the recorder to slave.

Archive at 176.4kS/s for audio-based material, archive at 192kS/s for video- based material. Ensure the sample rates match the source material.

Manual part no: DOC1241121A1

Page 28

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