Join Merge, Combine Multiple MP4 Files Into One Software 7.0 Overview

iCoolsoft Total Video Converter is one professional converting tool to convert videos between all popular formats ,extract video to audio and convert audio formats between MP3, WMA, WAV, AAC, AC3, M4A, OGG, etc.

MP3 Speed Changer enables you to speed up audio files - podcasts, audiobooks without changing the pitch. Batch processing feature and easy-to-use interface make MP3 Speed Changer valuable tool for audio listeners and authors who want to save time.

Play MP3s slowly by adjusting tempo. Also, adjust pitch to make slow playback more listenable.