Alesis 3630 Manual de usuario

ALESIS 3630 Reference Manual

Threshold to OFF. Turn on all instruments to be gated but do not passprogram material through them (For example, turn your microphoneon but do not si

Noise Gate Meter (Open or Closed)When the noise gate is closed (i.e., the input signal is below the noisegate threshold), the red Close LED is lit. W

Keying Application: DuckingA typical use of keying is to lower background music in the presence ofnarration. This is called ducking because the music

Frequency-Dependent Limiting Application: De-EssingSome vocalists and announcers, especially if equalized for more treble,will produce excessive "

1.9 TROUBLESHOOTINGNoisy or "squeezed" sound- Too low a limiting threshold and/or toohigh a compression ratio can result in such problems a

Heavy distortion- If the +4/-10 switch is set to -10, try setting it to +4.Gate opens but will not close again- This may be caused by improperThreshol

1.11 APPENDIX: About Compression,Limiting, and Noise GatingCompression and limiting both affect a signal's dynamic range,although in slightly d

AMPLITUDE VS. TIMEHowever, the maximum peak signal level has gone from 100 in thefirst drawing to 50 in the second drawing. Therefore, the overall sig

This limited, amplified signal has a much higher average level thanthe original signal. This is why limited signals can "jump out" at youand

The speed with which a limiter responds to the input signal is also im-portant. If the limiter tries to follow every little nuance of music, thesound

1.1 INTRODUCTIONThank you for purchasing the Alesis 3630 Dual Channel Compressor/Limiter with Gate. This cost-effective gain control device complemen

Noise GatingTo understand a gate's principle of operation, consider a "manualnoise gate." Suppose you're listening to an audio sig

Here are some typical applications for the 3630:• Even out a vocalist's dynamics to compensate for poor mic or vocaltechnique.• Increase a guitar

nels, synthesizers, and other unbalanced signal sources.Microphones and guitars can be used with the level switch set to-10dBV (see below). Guitars wi

1.3 HOOKING UP POWERHooking up power involves the rear panel power jack and front panelon-off switch.Power jack Plug the AC adapter output in here.

Threshold (-40 to +20 dBu)Sets the level above which signals will be compressed or limited.Rotating the control clockwise raises the threshold, thus

Peak mode. RMS mode automatically adjusts the attack time, depend-ing on the characteristics of the signals being processed.In peak mode, this control

1.5 FRONT PANELCOMPRESSOR/LIMITER SWITCHESEach switch has an in and out position. The legend above each switchshows which status is associated with w

goes into limiting. With the Link switch out, Channels A and B oper-ate independently as two monophonic compressor/limiters.With the Link switch in, C