Alesis ALESIS M20 owner manual Meter Setup, Metering, Chapter

Metering, Chapter 7

7.2METER SETUP

The VU meter scaling, headroom, decay time, and peak hold time are all adjustable using the Display menus. The Display button is in the lower left group of buttons beneath the meter display.

Scaling determines whether the meter range is -72 dB to 0 (Normal; this is the default) or -2.0 to +2.0 (Fine).

Headroom sets the headroom amount for the Fine VU meter mode (it does not affect the normal mode) by letting you specify what value the 0 dB marking represents. The value ranges from 2 to 22 dB, in 1 dB steps (default = 15 dB).

Decay sets the time for a meter segment to turn off after the signal goes below that level, with a range of 1 to 99. Each step represents 5 milliseconds, with higher numbers standing for longer decays. The maximum decay of 99 means a segment will hold for 500 ms. (1/2 second). Default = 10.

Peak hold time sets how long peaks will be held when the meters are in momentary Peak Hold mode, from 1 to 99. Each step represents 250 milliseconds, with higher numbers standing for longer holds. The maximum decay of 99 means a segment will hold for 24.75 seconds after level has fallen. Default = 8

Operation	You press…	You see…
Enter VU meter scaling	Display button	Display says VU Meter
setup		Scale
Edit VU meter scaling	Up/Down buttons	Display shows Normal
		or Fine scaling
Enter VU meter	Display button again	Display says Fine
headroom page		Headroom
Edit VU meter headroom	Keypad or Up/Down	Display shows amount of
	buttons to choose the	Fine headroom in dB
	headroom amount
Enter VU meter decay	Display button again	Display says VU Decay
page
Edit VU meter decay	Keypad or Up/Down	Display shows amount of
	buttons to choose the	meter decay time
	amount of decay
Enter VU peak hold page	Display button again	Display says VU Peak
		Hold
Edit VU peak hold	Keypad or Up/Down	Display shows amount of
	buttons to choose the	peak hold time
	peak hold time

7-2 ALESIS M20 REFERENCE MANUAL 1.06