dCS 954 User Manual

Manual for Standard Software Version 1.5x

dCS Ltd

June 2000

 

 

Menu Items

Issue

Displays the software issue when Set is pressed.

DSD

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 BNC 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 AES1 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 Mute and Coarse Lock buttons operate as usual

-the Phase and De-Emphasisbuttons do not work and

-the Volume 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 “DSD” starting on page 40 for more details – they trade-off ultrasonic signal bandwidth and out-of-band noise. A-Cutis 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.

Manual part no: DOC136954 iss 2B1

Page 20

file 135954ma2b1.pdf available from website

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