Barzy provides a simple color bar page for video production and audio sync check for when he hits an edge. There is a neat little sound control so it doesn't need to be annoying.
Its all inclusive.
Clocks are always handy for AV signal checks. Features that might be nice:
- Toggle on/off
- Display clear HH:MM:SS placement & color-wise
- Allow it to count up and have a reset button
- Allow it to count down but specify or +/- starting values