Pioneer PRV-LX1 Protocol Manual - Página 13

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Pioneer PRV-LX1 Protocol Manual

6.2 Playback Delay

When the PRV-LX1 is issued a play command it experiences up to a +2 frames delay in the execution of
the command. This delay is a result of the command being sent from the NLE system/edit controller via
serial control to the recorders internal HDD for processing. This action takes approximately 2 frames to
accomplish.

6.3 PRV-LX1 as Recording Device

When issuing a "pause" command while recording, the PRV-LX1 continues recording within the same
title/clip, maintaining continuous time-code.
To issue a "pause" command the user must issue a "shuttle 0" command. This pauses recording
to insert a chapter mark at the closest GOP of encoded video then recording continues. The
[Auto Chapter] setting should be set to Manual.
Issuing a "stop" command closes the recorded title/clip as defined by the DVD spec. All
subsequent recordings via serial control start with a new title/clip. The PRV-LX1 generates new
time-code within that title/clip.

6.4 PRV-LX1 as Source Device

When the PRV-LX1 is the source device being controlled via serial control with an NLE or edit control
device the following limitation applies.
When an external device is controlling the PRV-LX1 and a "Search and Play" command is sent
via serial control, the PRV-LX1 reports back frame numbers every 50ms. The PRV-LX1 cannot
return the precise time-code. The unit may return the same value as requested earlier or may
skip the frame while Recording or Playing.
* Pioneer Electronics suggest manually recording without using serial control when the
recorder is to be used as a source. Or, if the external control device offers the ability to
change the time-code query speeds, change the device to 50ms to match the PRV-LX1.
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PRV-LX1 IEEE-1394 Protocol