Motorola DSR-4550, Operator'S Manual, Page: 35 / 98

DSR-4550 25
Operating the DSR-4550
AudioMix Field Default: Stereo
This field allows selection of the audio processing options. Press the
4
button until
the cursor is at the AudioMix label, and press the ENTER button to move into the
field. Press the

buttons to display the options: Stereo, Surround, Mono, or
Dual Mono.
If Dual Mono is selected, a caution screen appears.
The warning screen is needed because of possible conflicts between this menu and
the channel selection menus that specify audio language and appears if the user had
previously used the Language menu (channel selection group, see "Aud1Lang,
Aud2Lang Menus" on page 41) to select a single language for Mono or Stereo
output and then changed this setting to Dual Mono output.
Note: If the audio input mode is stereo and you are connecting to a mono
modulator, you must set this field to Mono.
By pressing the ENTER button (ignoring the caution and taking no action in the
Lang menu of the channel selection group), the DSR-4550 changes to Dual Mono,
and uses the language previously selected for Mono (or Stereo) for both left and
right. The DSR-4550 now requires e a language defined for both left and right dual
mono outputs.
Conversely, if the user had previously selected Dual Mono output in two languages,
but later changed to Stereo or Mono output in this menu, the output reverts to the
Dual Mono language that is defined for the left channel.
Compress Field Default: Moderate
This field allows control of the degree of audio level compression. Press the
4
button until the cursor is at the Compress label, and press the ENTER button to
move into the field. Press the

buttons to display the options:
• Heavy: Reduces the louder audio signals and boosts the softer signals using
tighter compression thresholds in order to eliminate dramatic fluctuations in the
audio signal level and suppress dynamic range of the audio signal.
• Moderate: Provides some reduction and amplification of the audio signal, but
the thresholds are wider apart, providing moderate dynamic range of the audio
signal.
• Off: Compression is not used and provides full dynamic range of the audio
signal.
Press the ENTER button to confirm the selection.
Press E to continue or to stop
CAUTION: Check audio language selection