Thank you all for your advice
I gonna try to follow your recommendations. One more question if you please : I recorded my video using a stereo input (dual mode but maybe that's not mandatory ?) The signal appears to be stereo in the headphone but the 2 channels are mixed together for sending. I tried to setup the podfarm parameters in the mix interface using tone1 on channel 1 and tone2 on channel 2. In fact when I mute the 2 tones the outputs remain active. It seems there are no connexion between tones adjustments and sends ....
Looking at the users guides did not help me ...(please consider I'm french.. :wacko: ).
I'll inform you of the progress asap.
Graoully