What version of Premiere Elements and on what computer operating system is it running?
What is the brand/model/settings for the camera that recorded the video?
AVCHD or H.264.avi typically is not supported by Premiere Elements and will not import into it.
ADPCM.wav has been found to be not supported by Premiere Elements. PCM.wav is supported.
Please try to convert the file to H.264.mp4 version in HandBrake (the audio will be AAC) and determine if that is acceptable.
Please review, consider, and supply more information.
I converted the audio-stream with virtualDub from ADPCM in PCM, video not touched as stream copy.
That worked. Thank you for your reply.
Thanks for the update with the great news of success with PCM instead of ADPCM.
We have seen the ADPCM problem reported in several recent posts here.
Best wishes moving forward with your Premiere Elements workflows.