Imagine VTM-2000, Инструкция по установке и эксплуатации

Страница: 81 / 161

Global Setup Menu Functions
VTM-2000 Installation and Operation Handbook 61
Peak Program Level Analog and Digital
Analog and Digital Peak Program Level is a range set for each scale type that shows red when
the audio level exceeds this range. The range starts at the set reference level and changes in 1
dB increments.
Analog and Digital Scales
The Analog and Digital Scales submenus are used to determine the type of scale that appears
on the audio meter display.
Meter Response
Ballistics specifications are shown in Table 4-14 . These specifications describe meter scale
markings and both attack and decay times for meter movement.
Table 4-14. Ballistic Specifications with Attack and Decay
Ballistic Name Standard Attack Decay
VU IEC 268-17 300 ms 300 ms
PEAK IEC 268-10 10 ms 1.7 sec
TRUE PEAK IEC 268-10 0 ms 1.7 sec
The audio scales and ballistics are based on the IEC 268-10 and IEC 268-17 standards. These
standards describe meter scale markings and both attack and decay times for meter
movement.
The following meter responses can be selected:
VU (NORMAL)

PEAK

TRUE PEAK

VU + PEAK

VU + TRUE PEAK
PK (Peak) Hold
PK (PEAK) HOLD TIME is a user-selectable duration value of OFF, 1 to 10 seconds, or infinite.
The duration only applies to the hold time of the PEAK value, not the attack or decay time.
RESET PEAK manually resets the Peak value.