Mastering effect

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

Parameter

Range

Explanation

 

 

 

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–

Compression ratio (INF: infini-

 

INF:1

ty)

LEVEL

0–24 dB

Output volume

Split Frequency

2000–8000

Frequency at which the high-

High

Hz

frequency (HI) and mid-fre-

 

 

quency (MID) bands are split

Split Frequency

200–800 Hz

Frequency at which the low-

Low

 

frequency (LO) and mid-fre-

 

 

quency (MID) bands are split

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

fig.4-08

[ON]

 

Switches the mastering effect on/off

[BAND]

 

Selects the frequency band that you want to adjust

Function buttons

 

 

 

 

 

 

[F1

(Techno)]

 

 

Recall settings suitable for the correspond-

[F2

(Hip Hop)]

 

ing style.

[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.

If you press [F1]–[F4], the settings you are editing will be lost. Press

[F6] first to save them.

About THRESHOLD and RATIO

As shown in the diagram below, these parameters determine how

the volume is to be compressed.

fig.Comp.e

1:1

RATIO

Level

 

2:1

Output

 

4:1

 

 

 

 

INF:1

 

 

THRESHOLD

Input Level

108

Page 108
Image 108
Roland MC-909 owner manual Mastering effect, About Threshold and Ratio, 108