Yamaha CL5 Reference Manual page 131

■ U76
U76 is a processor that emulates a popular vintage compressor used in a wide range of situations. This
processor does not provide the threshold parameter that is found on conventional compressors.
Instead, the intensity of compression is determined by the balance between the input gain and the
output gain. The "All mode" setting for the RATIO parameter allows you to create a heavily-compressed
sound that is typical of this model. It produces an aggressive tonal character with a rich addition of
overtones.
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1
INPUT knob
Adjusts the input level. As the input level gets higher, more compression is applied.
2
ATTACK knob
Adjusts the compressor's attack time. Fully rotate the knob clockwise to set the fastest attack time.
3
RELEASE knob
Adjusts the compressor's release time. Fully rotate the knob clockwise to set the fastest release
time.
4
RATIO switch buttons
Use these five buttons to set the compression ratio.
A button with the higher number will raise the compression ratio more. Pressing the ALL button
selects All mode, in which the RATIO will become high, and sharp compression with a faster
release time will be applied, creating substantially-distorted aggressive sound.
5
METER switch buttons
Switch the meter display.
• GR.....................Indicates the amount of gain reduction applied by the compressor.
• +4/+8 ................Each meter uses –18 dB as the reference level of the output signal, and indicates
"0VU" for the value of the reference level added by +4 dB or +8 dB.
• OFF...................Turns off the meter display.
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6
OUTPUT knob
Adjusts the output level.
If you have adjusted the amount of gain reduction by changing the INPUT level, the level of
audible volume will also change. In this case, use the OUTPUT knob to adjust the volume level.
■ Opt–2A
Opt–2A is a processor that emulates a popular vintage model of tube opto compressors. It features
smooth compression produced using optical components such as a photocell and a light source to
control the level. It also features beautiful high-range overtones created by the warm distortion typical
of tube circuits, resulting in elegant and sophisticated sounds.
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1
GAIN knob
Adjusts the output level.
2
PEAK REDUCTION knob
Adjusts the compression amount of the signal.
3
RATIO knob
Adjusts the compression ratio.
4
METER SELECT knob
Switches the meter display.
GAIN REDUCTION indicates the amount of gain reduction when the compressor is operating.
With –18 dB as the reference level of the output signal, the OUTPUT +10 and OUTPUT +4
settings respectively will cause the value +10 dB or +4 dB from this reference level to be shown as
"0VU" on the meter.
131
Graphic EQ, effects, and Premium Rack
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Reference Manual