DK Digital CDB-600 Especificações descarregar pdf (Página 20)

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

6.4.2.2 Adjust Output Gain for an Audio Group.

To adjust the output gain of an Audio Group, use the [] / [] keys to move

the cursor to the ‘G-GAIN’ column and then use the use the [] / [] keys to

move the cursor to an output that is in the group where the gain is to be

adjusted. Press the [Option] key to enter the ‘Output Gain’ menu. In the

‘Output Gain’ menu use the [] / [] key to adjust the output gain and then

press [Exit] when done.

The output gain can be adjusted in steps of 0,5 dB between –12,0 dB and

+12,0 dB.

Note for PT0660M users: Using the wheeler in the main menu in full feature

mode will adjust the group gain for the Master group.

6.4.3 SUM and Difference amplifier. (M-S Mode.)

Even though most material today is produced in stereo, it is still important to

have information about the mono compatibility of the stereo signal. There are

different ways to measure this.

A way to do this, is to sum the two signals (left and right) together with a

differential showing of the same signal pair. By showing these as PPM-

bargraphs next to the stereo pair (M-S meters), it is possible to show the

differential between the M (sum) and S (difference) and from that measure the

mono compatibility. The further these two readings travel from each other, the

likelihood is that the signal is going out of phase.

In the illustration above a 1 KHz

sinewave with a phase difference

of 0 degrees is applied to channel

1 and 2. When the signal is

completely in phase the SUM of

the signal will be doubled.

In the illustration above a 1 KHz

sinewave with a phase difference

of 180 degrees is applied to

channel 1 and 2. When the signal

is completely out of phase the

DIFFERENCE of the signal will be

doubled.

Please refer to section 7.1 and 7.2.1 for information on how to use the 'Phase

Correlation Meter' and the 'Audio Vectorscope' to show the phase relationship

between two channels.

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