Yamaha QL5, Справочное руководство

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Data List
5
Dynamics Parameters
Dynamics Parameters are the following types.

GATE
A gate attenuates signals below a set THRESHOLD level by a specified amount (RANGE).

DUCKING
Ducking is commonly used for voice-over applications in which the background music level is
reduced automatically when an announcer speaks.
When the KEY IN source signal level exceeds the specified THRESHOLD, the output level is
attenuated by a specified amount (RANGE).
Input channels Output channels
DYNAMIC section 1 DYNAMIC section 2 DYNAMIC section 1
Type
GATE COMPRESSOR COMPRESSOR
DUCKING
COMPANDER-H
(Compander Hard)
EXPANDER
COMPRESSOR
COMPANDER-S
(Compander Soft) COMPANDER-H
(Compander Hard)
EXPANDER DE-ESSER
COMPANDER-S
(Compander Soft)
Parameter Range Description
THRESHOLD (dB) –72 to 0 (73 points)
This determines the level at which the gate effect is
applied.
RANGE (dB) –∞, –69 to 0 (71 points)
This determines the amount of attenuation when the
gate closes.
ATTACK (ms) 0–120 (121 points)
This determines how fast the gate opens when the
signal exceeds the threshold level.
HOLD (ms)
44.1kHz: 0.02 ms – 2.13 sec
48kHz: 0.02 ms – 1.96 sec (160 points) This determines how long the gate stays open once
the trigger signal has fallen below the threshold.
DECAY (ms)
44.1kHz: 6 ms – 46.0 sec
48kHz: 5 ms – 42.3 sec (160 points)
This determines how fast the gate closes once the
hold time has expired. The value is expressed as the
duration required for the level to change by 6 dB.
Input Level Time Time
Out
p
ut
Level
In
pu
t L
e
ve
l
Out
p
ut
Level
• I/O Characteristics • Time Series Analysis
RANGE
THRESHOLD
THRESHOLD
RANGE
Input Signal Output Signal
ATTACK DECAY
HOLD
Parameter Range Description
THRESHOLD (dB) –54 to 0 (55 points)
This determines the level of trigger signal (KEY IN)
required to activate ducking.
RANGE (dB) –70 to 0 (71 points)
This determines the amount of attenuation when
ducking is activated.
ATTACK (ms) 0–120 (121 points)
This determines how soon the signal is ducked once
the ducker has been triggered.
HOLD (ms)
44.1kHz: 0.02 ms – 2.13 sec
48kHz: 0.02 ms – 1.96 sec (160 points)
This determines how long ducking remains active
once the trigger signal has fallen below the
THRESHOLD level.
DECAY (ms)
44.1kHz: 6 ms – 46.0 sec
48kHz: 5 ms – 42.3 sec (160 points)
This determines how soon the ducker returns to its
normal gain once the trigger signal level drops below
the threshold. The value is expressed as the duration
required for the level to change by 6 dB.
Input Level Time Time
Out
p
ut
Level
In
pu
t L
e
ve
l
Out
p
ut
Level
• I/O Characteristics • Time Series Analysis
RANGE
THRESHOLD
THRESHOLD
RANGE
Input Signal Output Signal
ATTACK DECAY
HOLD