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Chapter 1 Introduction
BD500 Broadcast Profanity Delay
©Eventide Inc. 1995-1999
doc release 10
See Chapter 2 for in-depth explanation of the follow-
ing controls, or look up individual terms in the Index.
The front panel buttons have indicator lights which
are lit when a function is available. A flashing light
indicates that the function is running. Pressing a but-
ton when it is flashing will cancel the function. The
BYPASS button is illuminated when the unit is by-
passed. The DUMP button is illuminated when the
unit has enough delay to be safe. The CONFIGURA-
TION button and configuration mode are intended to
be used by an authorized operator only and thus its
operation is intentionally less obvious. See Appendix
A for configuration mode information.
Since the BD500 can serve as a broadcast profanity
delay or as a precision fixed delay, many of the buttons
have dual purpose. In addition some buttons serve in
navigating the configuration menus (discussed in
Chapter 3). All of the buttons are labeled for profan-
ity delay operation.
1
BYPASS button
Toggles the unit in and out of bypass. While by-
passed the LED is illuminated and the audio path
through the BD500 is bypassed through a relay. Press-
ing this button while bypassed will put the unit in-line,
with zero delay. This button is also used to exit from
configuration mode.
2
CONFIGURE button
Enters configuration mode. See Chapter 3.
3
Level Meters
Two 10-segment LED bar graphs show channel 1
and 2 input levels. These graphs act as meters and
may be used to align the equipment such that adequate
audio levels are presented to the BD500.
4
WAIT FOR SAFE button
In profanity delay mode only, initiates or cancels the
wait for safe mode which is used to start a show with
a safe amount of delay.
Front Panel
5
WAIT AND EXIT button
In profanity delay mode only, initiates or cancels the
wait and exit process which exits quickly from delay.
6
REBUILD button
In profanity delay mode, starts or stops rebuilding
the delay. In precision fixed delay mode, decrements
the current delay-amount digit.
7
RAMP TO ZERO button
In profanity delay mode, instructs the unit to start
or stop ramping toward 0.00 delay. In precision fixed
delay mode, this button increments the current
delay-amount digit.
8
SNEEZE button
If the unit is configured as a profanity delay, this
button is used to cut off microphone audio. If delay is
greater than 0.00, the unit will reduce the delay while
SNEEZE is held. In configuration mode, this button
sets an individual value back to factory defaults. In
precision delay mode, this button steps between dig-
its of the delay-amount.
9
3-Character Display
The 3-character LED shows delay-amount values,
text information, and configurable parameter values.
10
Delay-Amount Bar Graph
This 15-segment LED bar graph indicates current
delay as a fraction of maximum delay or, in precision
fixed delay mode, indicates which digit of the delay
value is selected. This display is also used for visual
cues during startup and configuration mode.
11
DUMP button
In profanity delay mode, deletes a segment of audio
in order to stop an undesirable audio segment from
being transmitted. This button is illuminated only if
the unit is in profanity delay mode and then only if the
amount of delay meets or exceeds a preset safe amount.
1
BYPASS button
3
Level Meters
5
WAIT AND EXIT button
7
RAMP TO ZERO button
8
SNEEZE button
2
CONFIGURE button
6
REBUILD button
9
Delay Amount Numerical Display
4
WAIT FOR SAFE button
10 Delay Amount Bar Graph
11 DUMP button
