To extract aac audio from flv video format :

1. Upload your flv file.
2. Select audio aac format from conversion list.
3. Enter a valid email address to get notified when the file is converted.

Also you can change the output audio setting for aac file, like audio bitrate, sampling rate, audio channels 'mono or stereo', and you can trim specific section of music. To know more about our audio edit experience, please go to Online Audio Converter page.