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録音機器 Drawmer 1978のPDF 取扱説明書をオンラインで閲覧またはダウンロードできます。Drawmer 1978 11 ページ。 Stereo tone shaping fet compressor

The General Layout and Features

1 - COMPRESSOR

Threshold

Determines the input level above which gain reduction will be applied. Soft knee compression takes place for

signals exceeding the threshold level by a few decibels, above which level conventional 'ratio' compression is

applied.

Ratio

Ratio determines the amount of compression (attenuation)

to be used once the 'soft-knee' region is exceeded. If the

ratio is set to 5:1 a signal exceeding the threshold by 5dB

will be attenuated down to 1dB above the threshold, and

likewise, a signal exceeding the threshold by 15dB will be

attenuated down to 3dB above it. A ratio of 1:1 provides no

compression, 4:1 is moderate, 8:1 strong, whilst 10:1 would

be seen as approaching limiting.

Gain Reduction Meter

An eight segment LED bargraph meter continuously monitors

the gain reduction applied by the compressor and gives an

indication of the amount of gain required to bring the signal

back to its input level after it has been compressed.

Attack

Sets the rate at which the compressor will respond to input

signal that exceed the threshold level.

Release

Sets the rate at which the system gain returns to normal

after the input signal level has fallen below the threshold.

CONTROL DESCRIPTION

40.0dB - +20dB

1:1 to 10:1

1 to 20dB

0.2mS to 100mS

0.05S to 3.5S

DRAWMER 1978 O

PERATOR'S

ANUA

CHAPTER 2