Free MP4 to MP3 Converter 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 lets you copy (extract) original audio tracks without any loss of quality. The program also allows you to split output files based on chapters stored in source files (often found in M4B files). Metadata by default are copied from the source files, but the user can add their own tags.
To convert audio streams to MP3 the application uses the latest version of the LAME encoder. The program supports encoding with a constant bit rate – CBR, average bitrate – ABR and variable bit rate – VBR (based on LAME presets). Basic operation of the program is very simple: just drag & drop MP4, M4A, M4B, M4R or AAC files into main window and click the CONVERT button on the toolbar. More advanced users can customize many encoding parameters: audio bitrate, bitrate mode, number of audio channels, audio sampling frequency, volume, time range and other.
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