File:wav,mp3,midi,mp4,avi,m4a,wmv,...with every beat:2/4,3/4,4/4,6/8,....
Determine the tempo(speed) original of file audio and change to speed as you want.
The sound is not changed quality.
Sync with your video or speed appropriate for use
Example BPM 85(original)-->86 or-->120-->200-->70--->50...
Completed in 24 hours
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