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Chapter 6 The Extended Audio Matrix. PRELIMINARY Release MSD Software Manual.

6.3.1 Bargraph (PPM) Options.

To change the appearance of the individual 'Peak Programme Meter'

bargraphs move the green selection cursor to a destination number between

#65 and #96 column ‘OUTPUT’ and press [OPTION].

The bargraph option window has seven items. The ‘X WIDE’, ‘WIDE’ and

‘NORMAL’ sets the width of the selected bargraph. 'Wide' is the default setting.

The 'SPACE’ item will if checked, insert an extra space at the right side of the

bargraph.

The colour of a bargraph can also be changed by using the colour selection

menu. A bargraph is divided into three fields, the top part - 'overload', the

bottom part - 'underload' and the middle part - 'normal'. The 'overload' part will

always be red, but the colour of the 'underload' and 'normal' parts can be

changed using ‘SET UNDER’ and ‘SET COLOUR’ items.

The colour selection menu.

‘SET TRACK’ will set the trace colour of the bargraph. When the trace colour is

set to another colour than black, the background of the bargraph will show the

highest bar reading until the the window is repainted or the [CLEAR] key in the

[METER] menu is pressed.

6.3.2 Audio Vector Scope Options.

To change the settings for the 'Audio Vector Oscilloscope' and the Jelly-Fish,

move the green selection cursor to a destination number between #53 and #62

in the column ‘OUTPUT’ and press [OPTION].

Please note that the only option available the Jelly-Fish (destination #55 to #62) is the

colour option. Please see section 6.3.2.3 for further information about this option.

6.3.2.1 Meter integration time. 

The integration time for the 'Phase Correlation Meter' can by selecting either

[SLOW] or [FAST] be changed from 10mS. (slow) to no integration time

(fast).

6.3.2.2 Meter Compressor. 

To obtain the best visual indication of signals in the 'Audio Vector Oscilloscope'

the 'Audio Vector Oscilloscope' uses dynamic scaling. This is done by adjusting

the input gain right before the metering function. The auto-adjustment are done

so that the average inputlevel results in a indication that fills most of the

window.

By selecting [C-OFF] the compressor is disabled and the input gain (and the

size of the image) can be set manually by using the gain [] / [] keys.

Note for PT0660M users: If the compressor is off, the input gain for the 'Audio

Vector Oscilloscope' can be adjusted using the wheeler. By pressing the [#2]

key, the compressor can be enabled or disabled. Pressing the [#1] key will

exit the options menu.

Page 14 of 64. PRELIMINARY Release

The upper part of the bargraph

options window.

Three PPM bars with different

widths and colours. The middle

PPM bar has the 'Track' colour

set to white.

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