I have the same problem. I have a mixed bag of footage, including some .avi (Sony HDR SR10 handycam) and .mts (Sony DCR-HC85). MTS is a pain. When I import through media browser or direct file import, I have Video AND audio. When I then try to bring the footage from source into sequence, the audio is gone. In some cases, I see some audio appearing BELOW the Master line, including a warning that “this clip does not match the sequence’s setting”, with the options keep or change settings. If I change the settings, the audio moves from below the master to Audio 4 and I have audio.
Strange thing: the Audio mixer shows below as names Audio 1 through 4 and most left is master. However, on top, it shows audio 1 through 3 with a drop-down menu set on “master” and a radio turning knob. The fourth (below mentioned as audio 4) has the drop-down menu but no radio knob. Then the fifth has nothing on top but is below mentioned as master??
Tried some other source clips that earlier did not work. Now they work, but all are putting audio in this audio 4 track.
Does this help an expert figuring out what happened?
Asus P8Z68-V Pro gen 3; i7-2600k; 16 GB RAM, ASUS-NVIDIA GTX 570, 240 GB SSD as OS and 1 TB WD as data drive, Coolmaster Silencio 550 silent case (I love it). Adobe Production Premiere CS 6