Interval Frame Function - Sony SRW-1 Operation Manual

6-3 Interval Frame Function

Even when you use a camera that does not support the
Select FPS function, you can obtain motion effects without
afterimaging by using the Interval Frame function.
This function extracts frames from video material at a
frame frequency set on this unit, stores them in memory,
and records the stored frames onto tape.
Relation between the number of frames shot and the frame interval (outline of Interval
Frame)
To obtain the desired slow or quick motion effects using
the Interval Frame function, you need to set the appropriate
frame interval according to the number of frames shot.
When the camera has shot the material in 24P format (at 24
FPS, or in other words at a system frequency of 24 frames),
and you set the frame interval to 6FRM, then a frame is
extracted once every 6th frame from the 24 frames of video
signals shot by the camera. In other words, 4 frames of
Frame interval: 6FRM (4 FPS)
Shooting and transfer at 24P
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Selection of frames to record
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Store in memory at intervals of 6 frames.
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Selected
frames
Record only extracted frames onto tape
(record with continuous timecode).
Playback: 24P
Playback at 24P
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Quick motion at 6 times normal playback speed
without afterimaging
74
6-3 Interval Frame Function
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24P
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24P
NV: Ineffective frame
HKSR-102
You can obtain variable-speed motion effects by changing
the frame frequency during recording (Ramp function).
The frame interval of shot frames is displayed in units of
FRM (frames).
It can be set in steps of 1FRM within the following ranges.
4:2:2 formats: 1 to 64FRM
4:4:4 formats: 1 to 32FRM
video signals are extracted every second and recorded onto
tape.
When the signals are played back at 24PsF, a quick motion
effect of 6 times normal playback speed is obtained.
The following figure illustrates the operation described
above.
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HDC-1500
SRW-1+SRPC-1+HKSR-102
Cassette