spdif switch witch fader


2008-03-21 10:05 pm
Hi !
First sory for my english.
I deign two inpiut spdif selector witch fader.
This selector switch the input only if on two inputs is audio.
Example: first input is default and i need switch to second input (ex.press button) only when on second input is audio (not silence)
Output is spdif format.
Switch form first (fade down) to second input (fade up) and switch from second(fade down) to first (fade of)
Resolution ?