The Basics of Synchronization and Time Code (5)

The Music Telegraph | Text 2019/09/06 [13:38]

The Basics of Synchronization and Time Code (5)

The Music Telegraph| 입력 : 2019/09/06 [13:38]

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The Basics of Synchronization and Time Code (5)

 

 

The 3 Types of Sync Signals

 

1. Time Base (Speed)

The heartbeat of the system. This can be either house sync or word clock. SMPTE can also provide the time base. 

 

2. Address (Location)

Exactly where in time the master device is at. It is displayed in the 00:00:00:00 format. Address information is provided by Time Code

 

3. Transport (Control)

Play, stop, rewind, forward, locate, record, etc. MIDI Machine Control is used to send transport information.

 

 

Offset

- The numerical difference between two time code addresses at the point at which they are synchronized.

- It is applied to slave machines only.

- To calculate offset: Subtract the slave time code address from the master time code address.

 

 

Jam Sync

- A technique used to start as time code generator from another running time code. 

- It can be used to recreate missing time code, or to continue generating where existing code left off.

 

 

A note on displaying drop frame

- Sometimes, but not always, drop frame is displayed by using semicolons (;) rather than colons (:) between the numbers.

- e.g.) 01; 20; 00; 06

 

 

 

 

 

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