Wednesday, August 13, 2008

How to extract audio from AVI, WMV, MPEG, FLV, MOV video files for free

One handy utility that everyone needs nowadays is a software program that can extract audio, sound, or background music from home movies, YouTube videos, or any other video file. In this article, I’m going to give step-by-step instructions on how to use a free program called AoA Audio Extractor. Using this nifty little application, you can extract audio from AVI, MPEG, MPG, FLV, DAT, WMV, MOV, MP4, and 3GP and save them into MP3 format or WAV and AC3 format also!

The program is extremely simply to use with the ability to drag and drop files right onto the interface. AoA Audio Extractor also includes a media player, so you can preview the video files from the program itself, saving you the hassle of making sure it’s the right video by playing it in Windows Media Player, etc. It also allows you to control the audio bit rate, audio sample rate and the channel type (mono or stero) for the output file.

However, one of the nicest features of the program that I really thought was quite useful is the ability to extract audio from only a portion of the video clip, instead of the entire file. This is a very basic editing feature, but it’s really helpful because you don’t have to download any sound editing software if you want only some parts of the audio.

To get started using AoA Audio Extractor, download and install the program. Open the program and click the Add Files button to select the video files. You can add more files if you want and they will be processed in a batch.

The videos will show up in the main window along with basic information such as the Start, End, Source Format, and Output Format. You can change the output format under the Output Options section below the main list. Select a video and click on Movie Clip if you want to extract audio from a specific time segment in the video. Before clicking Start, click on Browse and choose the location for the output MP3 file.

Now, go ahead and click Start and the extraction process will begin. The program is pretty fast, it took only 1 minute to extract audio from a 19 minute video clip.

You should now see your audio file at the location specified! I checked the sound quality between the video and the audio file and they were exactly the same, so you’re not going to lose any quality in the extraction process.

And that’s it! I’m going to be writing another article on how to extract audio from a DVD or VOB file soon, so look for that later! Any questions, post a comment!

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