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Reference
RMS metering setup options
Zero reference
Adjusts the reference point. Default is -18dB (DVD standard). Do not change this unless you specifically want to divert from the standard, as this will otherwise compromise meter readings.
Standard values are -18dB for DVD authoring and -20dB for film.
Weighting
Applies an optional weighting filter conforming to various standard curves:
- None (default).
- ITU 1770: K-weighting filter, comprising a shelving and a high-pass (RLB-weighting) filter in series, as specified in ITU-R BS.1170-2 and employed by EBU R128 (PLOUD).
- ANSI A, which is roughly the inverse of the Fletcher-Munson curve.
- ANSI B.
- ANSI C.
- ANSI D.