Справочник Пользователя для TEAC HD-P2

The HD-P2 has a wide range of timecode features. 
It can read incoming linear timecode (LTC) and has 
many functions including freewheeling, trigger on 
frame number, and timecode offset. The HD-P2 can 
also resolve its audio clock to a range of sources 
including LTC in and video in.
Very briefly, timecode operation works this way 
(details in the following sections):
1.  Enable timecode on the 

Project Menu/Settings 

screen.

2. Adjust the timecode settings as needed.
3.  Go into timecode chase mode by pressing the 

 key. The 

 indicator will reflect the 

state of incoming timecode (blinking if there is no 

timecode, solid with good timecode). The position 

on the audio timeline is now controlled by the LTC.

4. Start a timecode operation by pressing the 

 or 

 key. The 

 indicator will blink until the op-

eration is triggered by incoming timecode. Once 

triggered, any blinking light will stay on solid.

5.  The operation is stopped when the 

 key is 

pressed, or if power or storage space is low, or if 

LTC has hit the end of its 24-hour timecode day. If 

FreeWheel is not infinite (see below), then the op-

eration will also stop if timecode is stopped.

6. Leave timecode chase mode by pressing the 

 key. The 

 indicator goes out and 

the transport keys and the 

 wheel once 

again control the position on the audio timeline.

7.  When timecode is disabled on the Project Menu/

Settings screen, the 

 key is no longer ac-

tive.

There are many variations to how timecode works on 
the HD-P2, as controlled by the Timecode Settings 
screen.

Timecode operation on the HD-P2 is disabled by 
default. You cannot access the Timecode Settings 
menu screen until timecode is enabled. Go to the 
Project Menu/Settings screen, select the Timecode 
menu item and change it from 

 to 

 to enable 

timecode. Then select the Timecode Settings menu 
item and press the 

 key to enter the Timecode 

Settings screen which looks similar to Figure 33.

This menu item is a duplicate of the 

Clock Source field 

on the Project Menu/Settings screen. There is only one 
audio clock source and changing either one affects the 
other. This menu is included in the Timecode Settings 
for convenience.
The possible audio Clock Source values are:
• 

 – The audio clock is crystal-controlled 

and generated by the HD-P2. Use this only if the 

HD-P2 is to be the audio clock master in your sys-

tem, with its S/PDIF digital audio output used to 

synchronize other audio gear.

• 

 – The BNC input can also be sent a standard 

TTL-level word clock for audio clock sync.

• 

 – The audio clock rate can also be derived 

from an incoming S/PDIF digital audio signal.

• 

 – The HD-P2 will lock its audio clock to the 

incoming LTC, always keeping it in sync to the LTC 

rate. Please note that even with the audio clock rate 

locked to incoming LTC, the audio clock can still 

“drift” with respect to the LTC if it is discontiguous 

or if there is a mismatch between the expected and 

received LTC formats (e.g. drop vs. non-drop frame).

• 

 – A variety of video formats can be fed into 

the BNC input and used for audio sync, including 

composite or blackburst NTSC and PAL, and tri-

level sync from HDTV systems. Note that the  

Frame Rate (described below) must be correctly set 

to match the incoming video material.

The audio clock source and frame rate must be set cor-
rectly and fed valid signals to avoid “drift” between 
the LTC and the audio clock.

This field lets you specify the expected incoming LTC 
(and video) frame rate, as well as frame encoding in 
Drop Frame (DF) and Non-Drop (ND) frame systems.
• 

 – Some HDTV setups use a “pull-down” ver-

sion of 24 frame-per-second video. While the video