DCS 954 Benutzerhandbuch

dCS 954 User Manual

 Manual for Standard Software Version 1.5x

dCS Ltd 

June 2000

Manual part no: DOC136954 iss 2B1

Page 20

file 135954ma2b1.pdf available from website

Contact 

 on + 44 1799 531 999 

email to: more@dcsltd.co.uk

(inside the UK replace + 44 with 0)

web site: www.dcsltd.co.uk

Displays the software issue when 

 is pressed.

Selects DSD mode. When on and locked, the unit displays “

dSd

”. This mode

takes about 15 seconds to load, during which time the menu cannot be used.
There are two options:

Off 

The unit operates in PCM mode.

On

The unit will accept either DSD via the SDIF input
connectors (automatically selecting SDIF-2 or
SDIF-3 format) or DSD packed into 4 AES3
44.1kS/s links.

P3D units have a slightly more explicit menu sequence for this item:

Off 

The unit operates in PCM mode.

P3D

The unit will accept DSD via the SDIF input
connectors (automatically selecting SDIF-2 or
SDIF-3 format) or DSD packed in P3D format on
connectors AES1-3

DSD4

The unit will accept DSD via the SDIF input
connectors (automatically selecting SDIF-2 or
SDIF-3 format) or DSD packed into 4 AES3
44.1kS/s links.

To select DSD on the SDIF inputs, first set the 

dSd

 menu option to 

On

. Connect

the 2 data lines plus a 44.1kS/s Word Clock and press the 

 button. The

LED above the button will brighten and the display will show 

dSd

.

To select 4-wire DSD mode, first set the 

dSd

 menu option to 

On

. Connect the

four-wire encoded DSD 44.1kS/s data streams to the AES1 – 4 inputs, taking
care to ensure they are in the correct order, and press the 

 button. The 4

LEDs above the buttons will brighten, the unit will display 

dSd

 and unmute. The

unit detects swapped or missing wires by displaying (for example) 

1324

 or 

1-34

.

DSD is so different from PCM that many of the PCM related features are no
longer appropriate or are not implemented.

- the 

 and 

 buttons operate as usual

- the 

 and 

 buttons do not work and

- the 

control is disabled.

-  the following Menu items are disabled or have their functions

locked: 

Data, A-Cut, A-Sel, Tone, Sys, I-For, BNC I, BNC, BNC

O, Panel 

and

 Flip.

Filt 

works – there are 4 filter options in DSD mode. See the section on 

starting on page 40  for more details – they trade-off ultrasonic signal bandwidth
and out-of-band noise. 

A-Cut 

is set to

 On

, as DSD data in multi-wire AES

formats should be flagged as Non-Audio. The 

Ref In

 option is disabled in SDIF

DSD mode.