Roland MC-909 User Manual

 

This is a stereo compressor (limiter) that is applied to the final 
output of the MC-909. It has independent high, mid, and low ranges. 
By compressing sounds that exceed the specified volume level, it can 
be used to prevent the sound from distorting.

 

fig.4-07

 

You can use the controls of the Mastering section (ATTACK and 
RELEASE) to adjust the mastering effect parametersin real time.

 

fig.4-08

 

If you press [F1]–[F4], the settings you are editing will be lost. Press 
[F6] first to save them.

 

As shown in the diagram below, these parameters determine how 
the volume is to be compressed.

 

fig.Comp.e

 

ATTACK

0–100 ms

Time from when the volume 
goes up the threshold level un-
til the compressor effect ap-
plies

RELEASE

50–5000 ms

Time from when the volume 
falls below the threshold level 
until the compressor effect no 
longer applies

THRESHOLD

-36–0 dB

Volume level at which com-
pression begins

RATIO

1.00:1–
INF:1

Compression ratio (INF: infini-
ty)

LEVEL

0–24 dB

Output volume

Split Frequency 
High

2000–8000 
Hz

Frequency at which the high-
frequency (HI) and mid-fre-
quency (MID) bands are split

Split Frequency 
Low

200–800 Hz

Frequency at which the low-
frequency (LO) and mid-fre-
quency (MID) bands are split

[ON]

Switches the mastering effect on/off

[BAND]

Selects the frequency band that you want to adjust

[F1 (Techno)]

Recall settings suitable for the correspond-
ing style.

[F2 (Hip Hop)]
[F3 (Break Beats)]
[F4 (User)]

Recalls the user settings that you saved.

[F5 (Close)]

Returns to the previous screen.

[F6 (System Write)]

Saves the current settings as the user set-
tings.

Only one set of user settings can be 
saved.

1:1

2:1

4:1

INF:1

THRESHOLD

Input Level

Output Le

v

e

l

RATIO

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