Alesis 3630 - Manuals - manualsarea.com

Page 3 - Rear Panel Connections

Here are some typical applications for the 3630:• Even out a vocalist's dynamics to compensate for poor mic or vocal technique. • Increase a guitar's (or other stringed instrument's) sustain.• Smooth out bass sounds for a more consistent level.• Prevent peaks common in many source signals, such as d...

Page 4 - Installation

nels, synthesizers, and other unbalanced signal sources. Microphones and guitars can be used with the level switch set to-10dBV (see below). Guitars with exceptionally low output pickups mayrequire a preamp for best results. The input impedance is greater than100k Ω . Side chain This stereo jack all...

Page 6 - virtually constant regardless of input level changes.

Threshold (-40 to +20 dBu) Sets the level above which signals will be compressed or limited.Rotating the control clockwise raises the threshold, thus clamping sig-nals at a higher level and reducing the amount of compression or lim-iting. Ratio (1:1 to ∞ :1) Sets the compression s l o p e , which de...

Page 8 - COMPRESSOR/LIMITER SWITCHES; Hard knee - Soft knee

1.5 FRONT PANEL COMPRESSOR/LIMITER SWITCHES Each switch has an in and out position. The legend above each switchshows which status is associated with which switch position. Peak - RMS With peak response, the 3630 responds to signal peaks to insure thatthese peaks do not exceed a particular threshold...

Page 9 - For stereo sidechain applications, please refer to Section 1.8.; NOISE GATE CONTROLS; To set the proper gate level for most applications, turn the Gate

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, Channel A's controls become master controlsfor Channels A and B, with the exception of the input/output and the+4 dBu/-10 dBV switches which will cont...

Page 10 - FRONT PANEL METERING

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 sing through it). Increase the Threshold (clockwise) untilthe red CLOSE LED comes on. Any background noise should now beeliminated. E x a m p l e : To re...

Page 11 - SIDE CHAIN APPLICATIONS; The side chain jack allows for two useful functions:

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. When the noise gate is openand letting through the input (i.e., the input signal is above the noisegate threshold), the green Open LED is lit. The red ...

Page 12 - Keying Application: Ducking

Keying Application: Ducking A typical use of keying is to lower background music in the presence ofnarration. This is called d u c k i n g because the music "ducks" to get outof the way of the narration. A similar application would be to lower thelevel of a rhythm guitar while a vocalist is ...

Page 16 - Limiting, and Noise Gating; Limiting

1.11 APPENDIX: About Compression, Limiting, and Noise Gating Compression and limiting both affect a signal's dynamic range,although in slightly different ways. This type of signal processing can beused as an effect (e.g., increase a guitar or cymbal's sustain) or for morepractical applications, such...

Page 19 - Compression

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 can be overly "choppy." Often, you'll want the limiter to affectdynamic range over a somewhat longer period of time. The Releasecontrol sets t...

Page 20 - Noise Gating

Noise Gating To understand a gate's principle of operation, consider a "manualnoise gate." Suppose you're listening to an audio signal being processedby a relatively noisy effect. As long as the audio signal is present, itslevel will generally be higher than the noise, thus masking it.Howeve...