Step 2. Choose MP4 files to convert. Open Movavi Video Converter. Click the Add Media button and then Add video. Locate the files you want to convert on your computer and click Open. Step 3. Select the AAC output format. Select the Audio tab and choose one of the presets under AAC. You can keep the same audio settings as in the original file if Free MP4 to MP3 Converter (64-bit) is a free program that converts MP4, M4A (iTunes audio files), M4B (audiobooks), M4R (ringtones) and AAC files to MP3 or WAV format. In addition, the program allows you to copy (unpack) original audio tracks without loss of quality. Navigate to the audio files you want to convert and click them to select them. Then click Open in the lower-right corner to add the files to the File Selection box in VLC. To select multiple files at once, press and hold Ctrl and click all the files you want to select. 7. Click Convert / Save. One of the easiest-to-use mp3 converters online, YTMp3 has a clean, simple interface. you can convert 90 minute long videos for free using this mp3 converter. Here’s how you can convert your YouTube videos to mp3 using YTMp3. Choose MP4 files from your device. At the top of this page, drag and drop your MP4's. You can also click to select MP4 files using your operating system's file picker. Another method is to press the keyboard shortcut Ctrl+V (⌘+V on Mac) to paste an MP4 file you have copied to clipboard. Converting a folder with MP4 files to TIFF is also Fy06MJl.