1) Open the video file that you want to extract the soundtrack from.
2) If you want to extract your audio, click the Audio tab in the lower half of the window if you want audio to remain.
Pick a video preset if you want a video only. Then, click the audio format you want to use:
If you're not sure, use the MP3 format: it is supported by most players and allows for a decent quality.
If you want to convert audio with multichannel sound, you can use WAV, OGG, or FLAC formats.
Choose the necessary bitrate (quality) from the pop-up list. Choose Original bitrate if you want to keep the original quality.
If you'd like to have a video with no sound on it, please click the audio information next to the speakers icon.
Select the 'No Audio' menu in the dropdown menu that shows all the audio tracks that your video contains.
3)Click Convert to save the selected audio fragment.