mkv, etc), you’re asked to select the audio stream to export, when launching Audacity. Note: If there are multiple audio tracks (e.g., one audio stream for each language in a movie file) in one media container (.mp4. Note that the VLC Player (discussed in Option 2) doesn’t have this metadata option.

In the next screen, you can add metadata tags to the output MP3 file if required.

In the Export Audio dialog, you can choose the quality/bitrate (constant bitrate or variable bitrate range), speed, channel mode, and the output file name.

If you want to extract the audio to a different format other than MP3, WAV, or OGG, click Export Audio. Export to MP3, WAV, and OGG options are preset choices.

Once the input video file is opened, from the File menu, click Export and choose an output format.

Otherwise, you need to convert it to a supported audio format, such as WAV or AIFF when opening video files such as MP4 or MKV in Audacity. Note: If you haven’t installed FFmpeg for Audacity, you’ll see the error Without the optional FFmpeg library, Audacity cannot open this type of file.

Mp4 to mp3 converter windows 10