Comp Section - Yamaha DSP5D Owner's Manual

Dynamics Parameters

COMP section

❏ Compressor (COMP)
The COMP processor attenuates signals above a specified THRESHOLD by a specified RATIO. The COMP processor can also
be used as a limiter, which, with a RATIO of ∞:1, reduces the level to the threshold. This means that the limiter's output level
never actually exceeds the threshold.
Parameter
THRESHOLD (dB) –54 to 0 (55 points)
1.0:1, 1.1:1, 1.3:1, 1.5:1, 1.7:1, 2.0:1,
RATIO 2.5:1, 3.0:1, 3.5:1, 4.0:1, 5.0:1, 6.0:1,
8.0:1, 10:1, 20:1, ∞:1 (16 points)
ATTACK (ms) 0–120 (121 points)
44.1kHz: 6 ms – 46.0 sec
48kHz: 5 ms – 42.3 sec
RELEASE (ms)
88.2kHz: 3 ms – 23.0 sec
96kHz: 3 ms – 21.1 sec (160 points)
OUT GAIN (dB) 0.0 to +18.0 (181 points)
KNEE Hard, 1–5 (6 points)
• I/O Characteristics
(KNEE= hard, OUT GAIN=0.0dB)
THRESHOLD
❏ Expander (EXPAND)
An expander attenuates signals below a specified THRESHOLD by a specified RATIO.
Parameter
THRESHOLD (dB) –54 to 0 (55 points)
1.0:1, 1.1:1, 1.3:1, 1.5:1, 1.7:1, 2.0:1,
RATIO 2.5:1, 3.0:1, 3.5:1, 4.0:1, 5.0:1, 6.0:1,
8.0:1, 10:1, 20:1, ∞:1 (16 points)
ATTACK (ms) 0–120 (121 points)
44.1kHz: 6 ms – 46.0 sec
48kHz: 5 ms – 42.3 sec
RELEASE (ms)
88.2kHz: 3 ms – 23.0 sec
96kHz: 3 ms – 21.1 sec (160 points)
OUT GAIN (dB) 0.0 to +18.0 (181 points)
KNEE Hard, 1–5 (6 points)
• I/O Characteristics
(KNEE= hard, OUT GAIN= 0.0dB)
THRESHOLD
RATIO
322
PM5D/PM5D-RH V2 / DSP5D Owner's Manual
Range
This determines the level of input signal required to trigger the compressor.
This determines the amount of compression, that is, the change in output signal level
relative to change in input signal level.
This determines how soon the signal will be compressed once the compressor has
been triggered.
This determines how soon the compressor 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.
This sets the compressor's output signal level.
This determines how compression is applied at the threshold. For higher knee set-
tings, compression is applied gradually as the signal exceeds the specified threshold,
creating a more natural sound.
• Time Series Analysis (RATIO= ∞:1)
RATIO
THRESHOLD
Input Level
Range
This determines the level of input signal required to trigger the expander.
This determines the amount of expansion.
This determines how soon the expander returns to its normal gain once the trigger
signal level exceeds the threshold.
This determines how soon the signal is expanded once the signal level drops below
the threshold. The value is expressed as the duration required for the level to change
by 6 dB.
This sets the expander's output signal level.
This determines how expansion is applied at the threshold. For higher knee settings,
expansion is applied gradually as the signal falls below the specified threshold, creat-
ing a more natural sound.
• Time Series Analysis (RATIO= ∞:1)
THRESHOLD
Input Level
Description
Input signal
Time
Description
Input Signal
Time
Reference section
Output Signal
ATTACK RELEASE
Time
Output Signal
ATTACK RELEASE
Time