Videonics MXPro DV, Руководство пользователя

Страница: 151 / 198

W
ORKING WITH
A
UDIO
U
SING THE
A
NALOG
A
UDIO
A
DJUSTMENTS
F
UNCTION
143
U
SING THE
A
NALOG
A
UDIO
A
DJUSTMENTS
F
UNCTION
Use the Analog Audio Adjustments Function to adjust the analog audio input levels
and add delay to the analog audio path. These are advanced functions and most
users should leave the system set to its default settings: 0dB gain and 0 fields of delay.
Use these functions if you need fine control over your audio inputs or to compensate
for video delays that may have occurred in other devices in your video stream.
To display the Analog Audio Adjustment screen, press
SHIFT
+
AUDIO MIX
. The four slid-
ers represent the four analog audio inputs on the rear of MXProDV: IN1, IN2, IN3
and IN4. The audio delay values show the amount of delay, in video fields, to be
applied to each source. The maximum delay is five fields.
Selecting Automatic Adjustments
To select automatic adjustments, use the
LEFT ARROW
/
RIGHT ARROW
keys to select the
audio source (IN1, IN2, IN3 or IN4), then press
UP ARROW
to select automatic adjust-
ments. The Auto indicator will be highlighted when auto is selected. The default
selection is Auto.
The adjustment range is the same for all inputs: +12.5dB to -6dB. With automatic
adjustments, if the audio level is initially low, the level will be adjusted upwards in
1.5dB steps until an optimum level is reached. The optimum level will be below the
clipping level. Once this level is reached, the only auto-adjustments will be to lower
the gain if the audio is in danger of being clipped. In this case, the value becomes the
new optimum.
The optimum value can be reset by pressing
SHIFT
+
OK
. After this is done, the auto-
matic adjustments start again.