Junger Audio b46 - Digital Audio Leveler User Manual

Page 13

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2. FUNCTION DESCRIPTION

operation manual b46, chapter 2 -Function description- page 2-7

cases the attack time of the limiter for very short transients is zero.
Especially the release time of the control circuit has more influence to
the increase of loudness as any other parameter. The ranging of time
constants in processing time groups reflects this fact. The range for
processing time shows influence on release time parameter mostly.
The selection of the parameter PROGRAM changes the range of time
constant values as follows:


PRO

processing time

corresponds to

preset

----------------------------------------------------------------------------------------------

0

2 ms to 0.2 sec

1

5 ms to 0.5 sec

LIVE

2

10 ms to 0.8 sec

3

15 ms to 1.2 sec

SPEECH

4

30 ms to 2.5 sec

POP

5

50 ms to 3.5 sec

6

70 ms to 5.0 sec

UNIVERSAL

7

100 ms to 6.0 sec

8 150 ms to 8.0 sec

CLASSIC

9 250 ms to 10.0 sec


The audio signal delay through the dynamics processor is approx.
2ms due to delaying of the audio signal using internal memory. A
small delay is deliberately introduced to the audio signal in order to
allow limiter and compressor algorithms which can 'preview' the
audio signal before changing it. That is the signal curve can be
changed before maximum level is reached. This delay must be
considered before attempting to mix signals processed by the
dynamics processor with other undelayed signals.
When mixing together a delayed signal and a direct signal there may
be cancellation of the signal waveform at some frequencies and re-
inforcement of the waveform at other frequencies (comb filter effect).
Corresponding 2ms delay of direct signals should therefore be
carried out before mixing them with delayed processed signals.

2.4.2

INFLUENCE OF
SIGNAL DELAY
TIME

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