All Free YouTube to MP3 Converter allows you to batch download video from all available YouTube URLs. It also can extract audio from YouTube videos and save them as various audio formats on your computer. As a YouTube converter, it supports any input video/audio formats including YouTube FLV. The preset configuration can help you control the output quality.

It allows you to download videos from YouTube.com to your local folder by the YouTube video URLs. When downloading video from YouTube, if a higher quality version exists, it will be downloaded instead of the other versions. You can also set preferred sequence of qualities or use the default HQ5 quality. It can also extract audio tracks from downloaded YouTube FLV (Flash Video), AVI, MPEG, MPG, DAT, WMV, MOV, MP4, 3GP video files and save them as WAV, MP3, WMA, etc. As an audio converter, it converts audio files between the most popular audio formats and more. Detailed configuration of output quality settings is provided as presets, which contain many well-defined parameters suited to your professional or casual needs (frame rate, audio channel, sample rate, etc.). Step-by-step wizard with tutorial instruction will help users convert just by clicking buttons. Processing log can be viewed and saved as .txt or .log file for professional analysis (if needed).

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