I have listened to tutorials and look in the guide, but, as far as I can see I cannot fine a direct answer.

The simple question is: How do I change the audio in a whole clip ONLY. I know that if I place keyframes I can change the audio in sections, but I would like to lower (or raise) the sound on the whole clip without having to place keyframes at the start and end. As far as I can tell to do this you need to unlink the audio from the video in the clip and them, it seems that you can play with the audio in that clip, is this the only way? Also some clips have a keyframe in the audio at the start and at the end, but I cannot remove them in the regular way that works with keyframes in the middle of the clip. Does anyone know whay some clip audios have these keyframes and others don't? Saludos

Computer: HPm3530
Processor: AMD Phenom 9550 Quad-core, 2.2GHz
Memory(RAM): 8 GB
System: 64-bit
Video: nVidia GeForce 9300 GE