Software :: Combine Two Video Clips Containing Different .wav Audio -wavs Too Different?

I converted an mp3 to wav (using ffmpeg) and added it to a video clip (using avidemux). The video clip plays fine.I dumped the audio from an flv and converted it to wav (using ffmpeg) and added it to a another video clip (using avidemux). The video clip plays fine.But when i combined the two clips into one video there's a problem.... Once the part of the video pertaining to the first clip plays through, the audio in the part pertaining to the 2nd is completely distorted.Trying to combine the two video clips using mencoder results in :Quote:

videocodec: framecopy (320x240 24bpp fourcc=34504d46)
audiocodec: framecopy (format=1 chans=1 rate=22050 bits=16 B/s=44100 sample-2)
audiocodec: framecopy (format=1 chans=2 rate=44100 bits=16 B/s=176400 sample-0)

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