Talk:Linear timecode

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For Automation systems, LTC is so important, for example if you have an Automation device with a delayed TC of 20ms while other connected devices are exact TC , commands will be sent to other devices 20ms later than it should be. 20ms in life cant be noticed at all , while in TV and broadcast stations it means half aof picture frame.

Distribution of LTCEdit

 as LTC is an 2.4 MHz sound singnal, can it be amplificated with an Audio Distribution Amplifier?  —Preceding unsigned comment added by 200.52.14.130 (talk) 18:22, 6 December 2007 (UTC) 

I think you mean 2.4 kHz sound signal, and the answer is yes.--24.118.135.193 (talk) 03:57, 2 January 2012 (UTC)


Parity Bit Flag, and Binary Group FlagsEdit

I noticed that the information on this page is misleading. The parity bit is not always bit #27, it will be in different places depending on the Television System used, or in practice, the framerate used (e.g. 25 fps vs 30 fps). This can be verified in section 8.3 "Modulation Method" in SMPTE 12M-1999.--24.118.135.193 (talk) 04:00, 2 January 2012 (UTC)

Frequency rangeEdit

"Made up of 80 bits per frame, where there may be 24, 25 or 30 frames per second"

80 * 24 = 1920Hz - LTC timecode varies from 1920 Hz (binary zeros at 24 frames/s) 
80* 30 = 2400Hz (binary ones at 30 frames/s)
and thus is comfortably in the the audio frequency range.