Alesis 3630 manual Keying Application Ducking, Stereo plug

Keying Application: Ducking

A typical use of keying is to lower background music in the presence of narration. This is called ducking because the music "ducks" to get out of the way of the narration. A similar application would be to lower the level of a rhythm guitar while a vocalist is singing. To perform duck- ing:

1.Process the signal to be "ducked" (e.g., background music) through the 3630. For stereo signals use both channels, for mono signals just use one channel.

2.Plug the control signal (e.g., narration) into the channel's side chain jack, using a cord with a mono 1/4" phone plug.

3.The Threshold, Ratio, Attack, and Release controls now affect how much ducking will occur in response to the control signal. The Gain Reduction meter will show how much the "ducked" signal is being attenuated by the control signal.

Note: For stereo ducking using a single control source, the control source may be inserted into either side chain input. An unconnected 1/4" plug (stereo or mono) must be inserted into the other side chain input in order to disconnect the program material of that channel from the compressor/gate control circuitry.

Ducking. The signal at the sidechain's input (lead instrument or vocal) triggers the 3630, causing the stereo signal present at the inputs (background music) to be limited only when the lead instrument or vocal is present

Voice using	To mixer for	Mono or
sidechain	monitoring	Stereo plug
jack as
trigger input

Background music

Background music (limited and ready to be mixed with the lead instrument)

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