Abstract: A double standards converter for converting video signals formatted according to a first standard having a slower frame rate to a second standard having a faster frame rate prior to intermediate signal processing, and for converting the signals resulting from the intermediate signal processing to a third format having the same frame rate as the original video signals. The input video signals are first time base corrected and then converted to the second format repeating a frame in a periodic manner related to the time ratios between the first and second frame rates. After intermediate signal processing, the resulting signals are converted to the third format having the slower frame rate by deleting each repeated frame. Each repeated frame presented to the intermediate signal processor is excepted from the intermediate signal processing in order to avoid the introduction of discontinuities when the leading and trailing frames are joined by deleting the repeated frame.