Operation Manual

RED SCARLET-X OPERATION GUIDE
COPYRIGHT © 2013 RED.COM, INC 955-0003_v4.0, Rev-A | 186
BALANCED MICROPHONE
Balanced microphone input. Usually used with microphones that provide XLR connectors and have an
internal battery. If you select BALANCED, you can enable the 48V Phantom Power.
UNBALANCED MICROPHONE
Unbalanced microphone input with 3.3V bias. This type of input is usually provided by unpowered
microphones with 3.5 mm TRS plug.
LINE IN 0 DBU
Fixed input gain with limiter settings if limiter is enabled. (Only available with the PRO-I/O MODULE.)
LINE IN 0 VU
Same gain as 0 dBu but different compression/limiter settings if enabled. If no limiter is enabled, Line In 0
dBu and Line In 0 VU behave the same. (Only available with the PRO-I/O MODULE.)
PHANTOM POWER
Audio inputs that are set to BALANCED MICROPHONE input can enable the 48V phantom power on a per-
channel basis.
NOTE: Phantom Power is not available on early versions of SCARLET-X. If your camera does not allow you
to select PHANTOM POWER, please contact your Bomb Squad representative for upgrade information.
LIMITER
A limiter can be added to the analog input signal chain that adds about 12dB dynamic headroom to avoid
clipping on signal spikes. While it is best practice to use an external audio mixer to control the signal
strength the limiter can be used in more dynamic environments where an external mixer is not practical to
reduce the risk of clipped audio samples.
NOTE: The limiter is not available on early versions of SCARLET-X. Please contact your Bomb Squad
representative for upgrade information.
AUDIO RECORDING
Audio Recording is enabled if any of the input channel pairs are set to anything other than NONE. For
successful audio recording, the following parameters need to be set correctly:

At least one channel pair has a currently present source selected

Input gain is set correctly so that the Peak Meter shows valid data

None of the following modes are enabled:
•
Varispeed mode (framerate differs from project rate)
•
Single frame MoCo mode
•
Timelapse mode
•
Ramp mode