Specifications

Prism Media Products Limited AD-2 Dual-rate A/D converter
Operation Manual
Issue 0.2 © Prism Media Products Limited
11 August 1998 Page 31 of 58
4.8.2. Mode indicators
There are two indicators in this group and they show the current mode of
the AD-2: A-D or D-D.
4.8.3. Sync/DI indicators
These indicate if the synchronization source is internal or external and if
external, the type of synchronizing signal.
If the AD-2 is in D-D mode, the input signal format is indicated.
For more information about synchronization modes, see section 5. For
information about digital inputs, see section 6.2.
When a ‘Split96' DI source or synchronizing source is selected both LEDs will be lit for
the respective format (XLR 1&2 and BNC-1&2).
If LEDs other than “Local” are flashing, the most likely cause is that an inappropriate or
non-functional reference is connected or no reference is connected.
4.8.4. Rate indicators
These indicate the sample-rate for the Main and Aux output channels.
Main cannot be set to 32kHz.
“Ext” indicates that the output channel (Main or Aux) is running at the
same rate as DI or an external Sync source (depending on mode of
operation).
4.8.5. Output Word Indicators
These indicate the wordlength settings for the Main and Aux output
channels.
“SNS” indicates that the Prism Sound Super-Noise-Shaping system is
active on the respective output. This provides a less noisy result when
used in conjunction with wordlength settings of less than 24 bits. For
more information see section 9.
“DRE” indicates that the Prism Sound Dynamic Range Enhancement
system is active on the respective output. This system is designed to be used with 16-
bit recorders and so when DRE is selected the output wordlength will be indicated as
“16bit”. For an explanation of this feature, see section 3.8.