While trying to convert a video i notice virtualdub cant find my codec (no sound in output file). Even while setting use source audio it cannot find the audio. VLC can play the sound so how can i get virtualdub to use it? I dont see NELL (audio codec) anywhere in ffdshow. How can i fix this?
On the other hand, you may just install a codec pack. A very complete one that contains almost every imaginable codec is K-Lite Mega Codec Pack.