Sound Devices MixPre II Series, Manual, Page: 29 / 73

Metering
There are five basic methods for observing input and output levels on the MixPre II.
Channel Knob Ring LEDS
The brightness of the light ring indicates the level of the input. Green = signal present, red = signal peaking, orange = signal limiting.
A channel’s ring LED will flash orange when in solo and glow red when the channel is muted. With MixAssist active, the ring LED will
flow solid green to idicate that channel is active.
Channel Screen Meter
The Channel screen displays the isolated channel meter in the top left-hand corner.
Home Screen Meters
To switch meter views, touch the meters to cycle through the three different views. The meters show signal levels, current arm status
of each track, limiter activity, MixAssist active channel status, and NoiseAssist suppression amount.
Meter Ballistics
Audio meter ballistics is the manner in which a visual meter responds to audio signal levels. Peak-reading ballistics correspond to
actual signal peaks, but do not necessarily correspond to perceived signal loudness. Peak meters have an instant attack and slow
decay and are useful in digital audio workflows where signal overload can cause immediate distortion. Volume Units (VU) meter
ballistics correspond closely to how the human ear perceives loudness. VU meters provide good visual indication of how loud a
signal will be, but provides poor information of actual signal peaks.
The MixPre II uses a combination Peak+VU ballistics for all meters, where the perceived loudness (or VU) is simultaneously
displayed as a standard bar while the peak signal is displayed as a single, independent segment above the VU.
Channel Screen Meter
Main LR Stereo Meter View
MixPre II Series User Guide 28