Yamaha PM5000 Owner's Manual - Page 70
Monitor Delay Parameter No. U15, Master switch, Delay units, Delay value
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Digital Control Section Monitor Delay (Parameter No. U15) When the monitor speakers are located a significant distance from the main house speakers the resulting delay between the two sources can severely reduce the intelligibility of the sound. In such situations the PM5000's internal digital delay system can be used to delay the monitor output so that it becomes "time aligned" with the main house sound for maximum clarity. 2 Use the [INC] and [DEC] keys to set the selected parameter as required. NOTE If the unit type is changed after the delay value is set, the delay value will be recalculated and displayed according to the unit type selected (sound travels at 343.59 meters per second, or 1,127.26 feet per second under normal conditions). This is just an approximation, however, and for maximum accuracy it is advisable to set the delay value after the unit type has been specified. MONI DELAY 1 Press [ENTER] after selecting the above display and one of the monitor delay parameters will appear on the parameter display: DELAY (the master delay switch), UNIT (the delay units to be used: milliseconds, feet, or meters), or TIME (the actual delay value). Normally you will start by turning the DELAY parameter ON, and then set the delay time as required. Select a parameter and press the [ENTER] key. Master switch: Turns the monitor delay ON or OFF. When ON the MONITOR DELAY LED will light. DELAY:OFF UNIT:msec TIME: 300ms Unit type changed. UNIT:feet TIME: 338ft Unit type changed. UNIT:meter TIME: 103m 300/1000 (sec) x 1127.26 (feet/sec) = 338.178 (feet) 300/1000 (sec) x 343.59 (meter/sec) = 103.077 (meter) Delay units: Determines whether the delay time will be set in milliseconds (msec), meters (meter), or feet. UNIT:msec Delay value: The actual delay value based on the selected UNIT type. The maximum available delay is 1,800 milliseconds. TIME: 300ms 68
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