Eventide BD600+, Руководство оператора

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Chapter 1 Introducing the BD600+
BD600+Profanity Delay Chapter 1 Introduction Page 1
Document Version 2.1
The Eventide BD600+ is designed to enable a broadcast licensee to prevent obscene and/or libelous material from
being transmitted over the air. It does this by automatically delaying program material by up to 80 seconds, allow-
ing time for a monitoring operator to decide whether the material being delayed fits into either category.
If objectionable material is heard, electronic circuitry allows all or a portion of the delayed audio to be "dumped"
and the program resumed without interruption. The delay time is increased automatically and gradually after the
"dump" occurs. A remote control option allows an external relay to be attached to prevent uncontrolled sources,
such as telephone callers, from being aired until the delay time is again long enough to provide protection.
The BD600+ has a number of special functions to make it convenient to use: the WAIT AND EXIT function can
be used to synchronize to a network or live signal feed, and the RAMP TO ZERO function can be used to de-
crease the delay time to zero gradually when it is no longer needed for a safety margin.
This manual discusses the use and operation of the BD600+, the and the . All of the func-
tions are presented in detail, which may make the manual seem somewhat forbidding. However, the unit is very
simple to use and the apparent complexity portrayed in this manual is due to our desire to offer complete and accu-
rate information.
The BD600+ is a development of the popular BD600. It is similar in most ways to its predecessor, the main differ-
ences being that the BD600+ has considerably better audio quality, and a USB serial port as well as RS232.
BD600+ Features:

Up to 80 seconds of stereo audio delay

Allows multiple DUMP operations. The
DUMP function may be configured to delete
a portion of delayed audio between 1 and 10
seconds in length

REBUILD (catch-up) provides fast recovery
from a DUMP or SNEEZE while a show is in
progress

RAMP TO ZERO reduces the delay slowly
using the same process as Rebuild

SNEEZE function replaces microphone mute
switch and allows short interruptions to be
unnoticeable

WAIT FOR SAFE function allows starting a
show with a safe amount of delay

WAIT AND EXIT drops from full delay to
zero in real time

PANIC feature dumps all delayed audio and
plays jingle from plug-in card or mutes output
for fixed time while delay rebuilds

Micro Precision Delay mode allows a front
panel selectable delay between 10mS and
10.0 seconds in steps of 1uS. This is useful
for HD audio and other applications requiring
precise audio synchronization

Broadcast delay features can be used for
smooth entry and exit to and from Micro Pre-
cision Delay mode

Large numeric display shows amount of de-
lay


24-bit Analog to Digital and Digital to Ana-
log converters

AES/EBU digital audio input and output

44100 or 48000 samples per second internal
sample rate or set externally by AES or
Wordclock inputs

Front panel configuration and display of au-
dio input and output attenuation

Remote control inputs to trigger SNEEZE and
DUMP or other functions

Outputs to signal safe condition and DUMP
button actuation or other statuses

RS232 remote control

USB remote control

Compact Flash™ card for jingle play back
and software maintenance