Sound Devices 664, User Manual

Page: 71 / 183

71
TIMECODE AND SYNC
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Ext-TC Auto-Rec/Cont Reader/
Generator
Timecode is based on external timecode sources,
and allows recording on the 664 to be triggered
via external timecode starting and stopping. Also,
if timecode is disconnected, the 664 continues
counting from the same value, using its internal
timecode generator. This is useful when work -
ing with wireless timecode sources, allowing the
mixer to free-wheel through wireless dropouts. In
the event of a dropout, the 664 will stop recording
when it receives a stationary value.
Setting the Frame Rate
By default, the 664’s frame rate for the timecode generator is set to 30nd.
i
The frame rate value is stored in the Frame Rate field of metadata.
When using an external timecode mode, ensure the mixer’s frame rate is equal
to (or cross-jam compatible to) the external frame rate.
To set frame rate for the timecode generator:
1. Press the MENU button.
2. Turn and press the Headphone encoder to select TIMECODE/SYNC > Frame
Rate. Options include: 23.98, 24, 25, 29.97nd, 29.97df, 30nd and 30df.
Setting Timecode Hold Off
Some devices that send Rec-Run timecode will have a tendency to occasionally
send short bursts of running or invalid timecode. When using these devices as
an external timecode to trigger recording, this behavior can result in uninten -
tional recordings or invalid timecode stamps on the mixer. To prevent this, the
664 features a Timecode Hold Off function.
This feature only applies when in Ext-TC Auto-Rec and Ext-TC Auto-Rec/Cont
timecode modes.
When using these external timecode auto-record modes, the 664 will delay the
start of recording for a specified “hold” time. Running timecode that lasts for
less than the Hold Off value will not trigger a recording on the 664.
To set up Timecode Hold Off:
1. Press the MENU button.
2. Turn and press the Headphone encoder to select TIMECODE/SYNC > Hold
Off.
3. Specify the hold time in 0.1 second intervals. Options include: 0.0 s - 8.0 s.