[LEAPSECS] TV frame-rate in 60Hz countries

2014-01-18 Thread Peter Vince
Stephen Scott has just mentioned his involvement in the TV industry in the USA, with its problematical 29.97 Hz frame-rate. I also work in the TV industry, but in the UK where we are lucky to have a nice integer 25 Hz rate. Although historically we still had a problem with leap seconds, as the

Re: [LEAPSECS] TV frame-rate in 60Hz countries

2014-01-18 Thread Stephen Scott
On 2014-01-18 16:14, Peter Vince wrote: Stephen Scott has just mentioned his involvement in the TV industry in the USA, with its problematical 29.97 Hz frame-rate. I also work in the TV industry, but in the UK where we are lucky to have a nice integer 25 Hz rate. Although historically we

Re: [LEAPSECS] TV frame-rate in 60Hz countries

2014-01-18 Thread Peter Vince
On 18 January 2014 23:11, Stephen Scott stephensc...@videotron.ca wrote: Is there any attempt to maintain the PAL 8-field sequence when aligning the timestamps with clock time? Yes. The specification defines which seconds start with a field 1, however, the time code signal must also be

Re: [LEAPSECS] TV frame-rate in 60Hz countries

2014-01-18 Thread Brooks Harris
On 2014-01-18 01:14 PM, Peter Vince wrote: Stephen Scott has just mentioned his involvement in the TV industry in the USA, with its problematical 29.97 Hz frame-rate. Lets not propogate the notion of a 29.97 Hz rate, especially in the the context of this LEAP_SECS list. 29.97 is a commonly