Panasonic Ramsa Audio Mixer Wr Da7 Users Guide

As you are probably aware, video frame rates do not match up exactly with
digital audio sample rates. In a video production environment, if these video
frame rates and digital audio sample rates are not able to be locked together,
this will introduce many problems when it comes time to edit the audio and
video together.
To solve this problem, you may find that you need to pull up or pull
down the wordclock of the DA7 to match the frame rate of a video signal.
This subject is too involved to go into in...

[2 TR A]Areas
A status field shows whether or not there is a source connected to the 2 TR
Ainput ( when there isnt;  when there is). When in the
mode, the 2TR Ainput signal can be selected as the master
wordclock. Cursor to the 2TR IN Abutton, and press the ENTERbutton.
[SLOT] Area
[SLOT1]Fields
The left status field shows which option card is presently in the slot. The
status field will change to  when the input signal
comes into the slot. When the status field shows 
, the signal into
the slot can be...

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[DIGITAL INPUT SELECT]Area
This area depicts the routing system for digital sources in the DA7. There are
three boxes inside the [DIGITAL INPUT SELECT]area that are used for
routing the audio signal.
[ANALOG IN 9-16]
This permits assignment of analog inputs 9 through 16 to the inputs 9
through 14 and 15/16. This is the default setting. To select these inputs to be
digital, insert a card in Slot 3, and see instructions under [SLOT3]in this
section.
For ANALOG IN...

[SLOT3]
Digital SLOT 3can have its inputs routed directly to inputs 9 through 16,
replacing the analog inputs. On the Top Panel of the DA7, inside the label
strip for inputs 9 through 16, it also says SLOT 3. When there is an option
card in SLOT 3, and you have selected the option on the DIGITAL INPUT
SELECTarea, these faders become inputs for that option card.
You can switch between the analog and digital inputs at any time, and as
often as you wish without changing any connections to the DA7. This...

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12-2 D-I/O, TO SLOT Window
The [TO SLOT]window functions as a built in “patch bay” for the DA7. From
the [TO SLOT]window, direct output assignments can be made to option
cards. Eight discrete sources can be sent to each option card. The eight
source choices can be from INPUT 1-32, AUX SND 1-6, BUS 1-8, MASTER L,
or MASTER R. Buses 1-8 are the default settings. 
Each SLOTname appears above the column for the respective slot. When a
column is being addressed, the...

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[SLOT1]
Cursorto the top of this area  , and use the JogDialto scroll through the
available inputs. The data field will change as the choices are scrolled. Repeat
the process of assigning sources to the eight digital outs as needed. Or, you
can cursor to one of the eight selection fields, and press the ENTERbutton,
which will automatically assign the currently selected channel to that output.
[SLOT 2]
Cursor to the top of this area  , and use the JogDialto...

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[SLOT3]
Mode
In mode, [SLOT 3]is similar to [SLOT 1]and [SLOT 2].
Mode
The insertion mode allows you to send a signal to an external device
(using either the ADAT, TDIF, AESor AD/DA cards). You would then
route this signal to any outboard device, and return it to the DA7via
SLOT 3(using either the ADAT, TDIF, AESor AD/DAcards). You can
return to aux returns 1 through 6, buses 1 through 8, or MASTER L/R.
See Chapter 17, Optionsfor more details.
SLOT 3 in INS...

Mode
The DA7can slave another DA7through the TANDEM option card.
and Buttons
Enable the [TANDEM] connection by moving the cursorto the 
button, and pressing the ENTERbutton. The  button will
toggle to  .
Data Field
indicates whether or not the [TANDEM] mode can be
activated. This information appears inside the data field [OK],
[DATA NG], or [SLOT NG].
Data Field
The [OFFSET DELAY]between the DA7and the slave mixer can be
set from this data field. When the field is highlighted, you can set
the value for...

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12-3 D-I/O, DITHER Window
This window shows and sets the status of Dither to the digital output signal.
In normal operation, the digital audio signals output from the DA7 and are
24 bit word lengths. If the device connected to the DA7 operates at fewer
than 24 bits, the bit in the least significant digits will be dropped by the
device on the receiving side, possibly resulting in unnatural sounds.  
Simply put, Dither permits you to connect two devices together...

Cursorto the bit field, and change the value by rotating the JogDial,setting
the bit rate to the same as the receiving device. The setting is adjustable in
one bit increments from 23 to 16. If  , the DA7 will output 24 bits. Then
cursorto the  button, and press the ENTERbutton to activate the setting.
The  button will toggle to  .
ONOFF
OFF
OFF
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When the  button is displayed for an area in the [DITHER]
window, the bit rate output is 24 bit. Failure to toggle the...