29-09-2021, 07:19 PM
At the time the 13.5MHz choice was made, digital TV was difficult. Having 2 different sample rates would have made it even harder to design equipment. It was the right choice at the time.
For HD we have 2 closely related sample rates due to the fact that in the USA the field frequency was shifted when colour was introduced. This causes immense hassle with timecode and means that all HD kit has to work on both 74.25MHz and 74.25x1000/1001.
For HD we have 2 closely related sample rates due to the fact that in the USA the field frequency was shifted when colour was introduced. This causes immense hassle with timecode and means that all HD kit has to work on both 74.25MHz and 74.25x1000/1001.
www.borinsky.co.uk Jeffrey Borinsky www.becg.tv
