Using video Conversion program I would like to slow down the tempo of the music in a video. How is this done?
Will the output show a shorter time than the original, ex. from 3:58 to 2:45, to really see it happened ?

To: groovy3130

Hello,

In AVS Video Converter it is not possible to adjust playback speed of the sound of the output file.

In AVS Video Editor, you can change the speed of the video together with the audio. Or, you can extract audio and add it as a separate soundtack to your video. Then you will be able to adjust the speed of the soundtrack separately (right-click the soundtrack on the timeline and choose Speed).

Best regards