How To Extract Audio Out of Video Files Losslessly and Fast [1]

When you want to save the audio stream from a video, there is only one way to do it right: demux. Demuxing means splitting up the different streams from a file. This way, you keep the streams in their original quality and it is very fast (less than a minute for 90 minutes of video).

So please, next time you want to save audio from a YouTube video, do not convert it to mp3 or use a website to give you a link. Download the video in the highest quality possible with tools such as Video DownloadHelper, then extract the audio.

A very good tool to extract the audio is Pazera Free Audio Extractor [3]: it supports almost every format possible, and it can go through a batch of files with no problem. To demux, choose the "Try extract original audio stream" option from the drop-down list of Output Format. If the audio stream is too big (.wav file for example) or in a format that is not supported by your mp3 player (.ac3...), you can ask Pazera Free Audio Extractor [3] to convert it directly for you.

[3]

Now you know how to properly handle that task, whether you want to save a track from a concert DVD or get sounds from a video for a remix. You can download Pazera Free Audio Extractor on this page: http://www.pazera-software.com/products/audio-extractor/ [3]. No installation is required, just unzip the download and run the executable.

If you need to cut or merge your audio files, read this article: Best Free Software to Cut, Split or Merge Audio Files [4]

This software category is in need of an editor. If you are interested in taking it over then check out this page [5] for more details. You can then contact us from that page or by clicking here [6].