ARRI ALEXA 35 Body & PL Mount Set (LBUS) - Manual (Page 60)

Recording 60
Activation of Audio Recording
► Select MENU > Recording > Audio Recording > Audio Recording to enable/disable audio recording.
Enabled audio recording is indicated through the audio meters displayed on the HOME screen as
well as in the Status Info. The meters show the current level of the channel signal in dBFS. Audio
recording is temporarily disabled if the frame rate of the sensor does not match the frame rate of the
project.
Routing of Channels
► Select MENU > Recording > Audio Recording > Channel 1/2/3/4 Source
to set the input source for each channel.
Following options are available:
None No source is assigned to the channel. The channel is not written to the recorded file if subsequent
channels (by channel no.) also do not have a source assigned to them.
Line In L
Line In R
AEM-1 L
AEM-1 R
Internal Mic L
Internal Mic R The left channel of the camera's AUDIO input is assigned to the channel.
The right channel of the camera's AUDIO input is assigned to the channel.
The left channel from the Audio Extension Module AEM-1 is assigned to the channel.
The right channel from the Audio Extension Module AEM-1 is assigned to the channel.
The left internal microphone is assigned to the channel. This microphone uses a fixed gain of +18dB.
The right internal microphone is assigned to the channel. This microphone uses a fixed gain of 0dB.
An icon on the HOME screen and in the Status Info indicates active internal microphones.
The icon is crossed out when the internal microphones are muted.
Setting the Gain
► Select MENU > Recording > Audio Recording > Channel 1/2/3/4 Control
to set the gain control for each channel which has either Line In L or Line In R assigned as source.
Following options are available:
Manual Gain Allows the user to manually adjust the gain of the input signal on the channel to reach a desired level.
Manual Gain +
Limiter
A limiter prevents the signal from clipping if the input signal level combined with the set gain results in
signal levels exceeding -6 dBFS.
Auto Gain Matches a 0 dBu input signal to -6 dBFS. This setting leaves enough headroom for recording and
avoids audio clipping. Audio levels can not be adjusted by the user.
► Select MENU > Recording > Audio Recording > Ch 1/2/3/4 Gain
to adjust the gain in steps of 1.0 dB for each channel which has either Line In L or Line In R
assigned as source.
Info: Gain adjustment is not available for channels to which the internal microphones or the
Audio Extension Module AEM-1 are assigned as source. The internal microphones use a fixed,
nonadjustable gain, the gain of the signals applied to the AEM-1 must be set on the AEM-1 itself.
Headphones Routing and Headphones Volume
► Select MENU > Recording > Audio Recording > VF Headphone Routing > Channel 1/2/3/4
to configure the routing of audio channels to the headphones.
Following options are available: