User Manual

Master Section
OZONE 7 | OPTIONS
97
Options
Meter Type
Ozone 7 allows the I/O meters to display peaks according to several dierent audio monitoring types,
including:
• RMS: RMS (Root Mean Square) is a software-based implementation of an analog-style level
meter. Using dierent integration times, you can model popular VU or PPM meters. The RMS
meter displays the average level calculated over a short window of time. The RMS meter
readout will typically be lower than an equivalent PPM meter (Digital/Analog), since it is
averaging peaks into the overall loudness.
• Peak: The Peak meter is a fast meter that measures instantaneous maximum sample value or
peak analog waveform values, depending on the “detect inter-sample peaks” checkbox. If you
are tracking the peaks for possible clipping, the Peak meter is appropriate.
• RMS + Peak: This is a combined RMS and Peak meter. This meter displays a lower bright bar
representing the average level (RMS) and a higher dimmer bar representing peak level. There is
also a moving line above the bar representing the most recent peak level or peak hold.
• K-System: Ozone 7 supports Bob Katz’s K-System metering with simultaneous peak and RMS
displays.
• Momentary: This measurement is a calculation of loudness over the course of 400ms.
• Short Term: This measurement is a calculation of loudness over the course of 3 seconds.
• Integrated: This measurement is a calculation of loudness over the course of an indefinite
period of time.
Scale
This sets the range and scale of the I/O Meters.
• dB (Linear): Decibel scale presented linearly from -60 dB to 0
• dB (Non-linear): Full decibel scale (dBfs) presented non-linearly
• BS.1771: Loudness scale recommended by the ITU that spans from -45 LUFS to -14.0 LUFS
• EBU +9: Loudness scale recommended as a default by the EBU that spans from -41.0 LUFS to
-14.0 LUFS
• EBU +18: Loudness scale recommended for material with a wide Loudness Range by the EBU
that spans from -59.0 LUFS to -5.0 LUFS.
Note: LUFS is Loudness Units Full Scale and 1 LUFS = 1 dB.
Source
Selects the audio source feeding the meters. Choices include:
• Stereo
• Mid/Side