User manual

MRD 3187B User Manual
Page 134
RDS1 Aud1 Setup
Type: User
►Compress: RF Mode
Downmix: 2/0 LR
RDS1 Aud1 Setup
Type: User
Compress: RF Mode
►Downmix: 2/0 LR
RDS1 Aud1 Setup
Compress: RF Mode
Downmix: 2/0 LR
►Dyn Range: Enabled
Compression
1. Use the and buttons to move
the cursor to, “Compress:” then press the
button.
2. Use the and buttons to select
the desired compression (RF Mode, Line
Mode, Custom 0, Custom 1) then press
the button to save the selection.
Downmix
Note: This menu is only user configurable if
the Type is set to “User.”
1. Use the and buttons to move
the cursor to, “Downmix:” then press the
button.
2. Use the and buttons to select
the desired downmix (2/0 LR, 2/0 LtRt,
Mono Chan1, Mono Chan2) then press the
button to save the selection.
Dynamic Range
1. Use the and buttons to move
the cursor to, “Dyn Range:” then press
the button.
2. Use the and buttons to Enable
or Disable Dynamic Range then press the
button to save the selection.
MRD 3187B Audio Explanation
Audio Setup
There are three primary modes of audio down mix operation for the 8731A/8734 decoder.
These settings only affect the signal if the digital output is set to “PCM.” It will also affect
those embedded audio channels that are set to a PCM Downmix as well as analog audio.
Note: There are no gain changes if the digital or embedded outputs are set to Raw.
The modes are “Monitor” (the default setting), “Transmission”, and “User.”
The first mode is “Transmission.” It allows no changes by the customer. It is intended to
provide a limited dynamic range signal to drive a set top box or a transmitter. The
“Transmission” mode does respond to dialog normalization data. It provides a gain boost of
11 dB and has compression to prevent the signal from overdriving a modulator. The 11dB
gain boost is applied to the analog outputs, AES digital outputs set to PCM, and any
embedded outputs set to PCM.
Note: It will not affect the gain of digital outputs or embedded outputs set to Raw.