Alesis 3630 manual Front Panel COMPRESSOR/LIMITER Switches

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1.5FRONT PANEL COMPRESSOR/LIMITER SWITCHES

Each switch has an in and out position. The legend above each switch shows which status is associated with which switch position.

Peak - RMS

With peak response, the 3630 responds to signal peaks to insure that these peaks do not exceed a particular threshold. This mode is ideal when using the 3630 to avoid clipping, a phenomenon when signal peaks exceed a particular device's headroom. In RMS mode, the 3630 responds to a signal's average level. This preserves more of the rela- tionship between a signal's peaks and valleys, and is useful when you want to compress or limit but still retain a fair amount of dynamic feel. Note: in RMS mode, the attack and release times will be program de- pendent. The front panel attack and release controls will have no effect on the signal.

Hard knee - Soft knee

With hard knee response, signals are clamped to the limiting threshold as soon as they exceed it. With soft knee response, signals are clamped more gently, giving a more natural sound.

Input - Output

Selects whether the input/output meter displays the input signal or output signal. See section 1.7, Front Panel Metering, for more informa- tion.

Bypass - Comp

In the bypass position (the gain reduction LEDs will turn off), the lim- iter circuitry is switched out of the signal path so you can hear the un- processed sound. In the Comp position, the 3630 processes the input signal.

Note: The 3630 must be powered up to pass a signal with either switch setting.

Stereo Link Switch

In stereo operation, both channels need to operate in a complementary fashion to avoid shifting the stereo image as one channel or the other

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Contents Alesis Introduction Rear Panel Connections Hookup General TipsHere are some typical applications for Installation Hooking UP Power Front Panel COMPRESSOR/ Limiter ControlsPage Page Front Panel COMPRESSOR/LIMITER Switches Front Panel Noise Gate Controls Input/Output Meter -30 to +6 dBu Front Panel MeteringGain Reduction Meter -1 to -30 dB Side Chain Applications Noise Gate Meter Open or ClosedKeying Application Ducking Stereo plugFrequency-Dependent Limiting Application De-Essing Troubleshooting 10 3630 Specifications Appendix About Compression, Limiting, and Noise Gating LimitingAmplitude VS. Time Page Compression Noise Gating