Lexicon MC-12 manual Checking the Microphones, Checking for Silence

CHECK MICROPHONES CHECKING MICROPHONES

PLEASE WAIT

CHECK MICROPHONES

CHECKING FOR SILENCE PLEASE WAIT

MC-12 Setup

CHECKING THE MICROPHONES

MAIN MENU

MODE ADJUST

AUDIO CONTROLS

SETUP

SETUP

INPUTS

SPEAKERS

REAR PANEL CONFIG DISPLAYS VOLUME CONTROLS TRIGGERS

LOCK OPTIONS LIVE! CALIBRATION

SPEAKER SETUP

SET CROSSOVERS CHECK MICROPHONES AUTOMATIC MANUAL

SET CROSSOVERS

BEFORE CALIBRATING

CHECK MICROPHONES

GROUP MICROPHONES INTO A BUNDLE IN THE MIDDLE OF THE ROOM

PRESS TO BEGIN

MIC CHECK

Note the following:

•The MC-12 outputs calibration noise signals between 55 and

95dB, beginning with 55dB and increasing in 5dB increments until the microphones detect the required level. If the calibra- tion noise signal becomes too loud, press the arrow button to cancel the microphone check.

•Although the calibration noise signal is output at a fixed volume level, you should set all volume controls for associated components (i.e. speakers, subwoofers, and power amplifiers) to a reasonable level before performing automatic calibration. When the procedure is finished, the MC-12 automatically reverts to the last volume level that was selected before automatic calibration began.

•During automatic calibration, you should refer to the on-screen display instead of the front panel display, as additional informa- tion and instructions are available on the on-screen display.

1.Select the SPEAKER SETUP menu CHECK MICROPHONES option as shown above.

2.The first CHECK MICROPHONES screen opens in the on-screen display, indicating the importance of proper microphone placement to achieve accurate automatic calibration results.

3. Press the arrow button to begin the microphone check. The following screens appear in the on-screen display as the micro- phone check is performed:

CHECKING FOR SILENCE

Appears in the on-screen display while the MC-12 determines the relative noise level of the listening space and the internal noise level of the microphones. After eliminating microphones that are

not detected or not functioning, the MC-12 calculates an aver- age level for all microphones.

CHECKING MICROPHONES

Appears in the on-screen display while the MC-12 confirms the microphone level calculated during the silence check. To do this, the MC-12 sends alternating calibration noise signals to

the front left and right speakers. These signals are output between 55 and 95dB, beginning with 55dB and increasing in 5dB increments until the microphones detect the required

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