Yamaha 02R Manual Do Utilizador

Dynamics

A compressor provides a form of automatic level control. By attenuating 
high levels, thus effectively reducing the dynamic range, the compressor 
makes it much easier to control signals and set appropriate fader levels. 
Reducing the dynamic range also means that recording levels can be set 
higher, therefore improving the signal-to-noise performance.

determines the level of input signal required to trigger the 

compressor. Signals at a level below the threshold pass through unaffected. 
Signals at and above the threshold level are compressed by the amount 
specified using the Ratio parameter. The trigger signal is determined using 
the KEY IN parameter.

controls the amount of compression - the change in output signal 

level relative to change in input signal level. With a 2:1 ratio, for example, a 
10 dB change in input level (above the threshold) results in a 5 dB change in 
output level. For a 5:1 ratio, a 10 dB change in input level (above the 
threshold) results in a 2 dB change in output level.

 controls how soon the signal is compressed once the compressor 

has been triggered. With a fast attack time, the signal is compressed almost 
immediately. With a slow attack time, the initial transient of a sound passes 
through unaffected.

sets the compressor’s output signal level. Compression tends to 

reduce the average signal level. Out Gain can be used to counter this level 
reduction and set an appropriate level for the next stage in the audio path.

–54 to 0

(55 points)

1.0, 1.1, 1.3, 1.5, 1.7, 2.0, 2.5, 3.0, 3.5, 4.0, 5.0, 6.0, 8.0, 
10, 20, 

∞

 (16 points)

0 to 120

(121 points)

0 to +18

(36 points)

hard,1,2,3,4,5

(6 points)

5 ms to 42.3 sec

 *1

, 6 ms to 46.0 sec

 *2

, 

8 ms to 63.4 sec

 *3

(160 points)

*1

These values are obtained when the sampling frequency is 48 kHz.

*2

These values are obtained when the sampling frequency is 44.1 kHz.

*3

These values are obtained when the sampling frequency is 32 kHz