PIX 220i, 240i, 220, 240 User Guide and Technical Information
13
Analog Audio Inputs
PIX recorders have two high-performance analog audio inputs. These balanced inputs accept either
mic- or line-level signals, and include high-pass ilters, limiters, 48V phantom power, linking, and
M/S matrixing.
Input Low-cut Filters
Setup Menu options:
Audio
Analog 1 Low cut
and
Audio
Analog 2 Low cut
.
Low-cut ilters on analog inputs reduce sensitivity to low frequency signals (such as wind noise
from a microphone). Signals below the selected frequency are atenuated. The amount of atenuation
increases at lower frequencies according to the slope of the low-cut ilter. The Setup Menu option
Audio
Low cut Slope
allows adjustment of the slope for both analog inputs.
Input Limiters
Setup Menu option:
Audio
Input Limiter (1,2)
.
Analog inputs incorporate an advanced, analog/DSP-controlled hybrid limiter to prevent input over
-
load. In normal operation and with proper gain setings, the limiters should rarely engage. When
activated, limiters prevent unusually high input signal levels from overloading the analog input
stage of the preamp.
Limiting activity is indicated by a yellow segment on the right side of the audio meters (both in the
Audio View and the Main View). When the yellow segment is visible, limiting is occurring. The
Input Limiters are active for both mic- and line-level inputs. When inputs are linked, the limiters are
linked.
Input Polarity
Setup Menu options:
Audio
Analog 1 Polarity
and
Audio
Analog 2 Polarity
.
Input Polarity inversion (sometimes referred as phase reverse) can be applied to either analog
input. This can be used to rectify incorrectly wired balanced cables, to prevent signal cancellation
when a source is dual-miked from opposite directions, or reverse let/right with MS microphone
conigurations.
Digital Audio Inputs
The PIX 220i and PIX 240i accept digital audio from HDMI. Additionally, the PIX 240i accepts digital
audio input over SDI and AES/EBU inputs. All audio is sampled at 48 kHz.
HDMI / SDI Embedded Audio
The PIX 220i and PIX 240i accept two channels of embedded digital audio on the HDMI Video Input.
The PIX 240i accepts up to 8 channels of digital audio on its SDI input.
AES3
The PIX 240i accepts AES3 (AES/EBU) digital signals with sampling rates from 32 kHz up to 192 kHz
and bit depths up to 24-bits. Files recorded by the PIX 240i are uncompressed 24 bit, with sampling
rates of 48 kHz. All digital signals connected to PIX are sampling rate converted to 48 kHz, including
signals sent at 48 kHz.
Input Linking
Setup Menu option:
Audio
Input Linking
Summary of Contents for PIX 220
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