CloudConvert converts your audio files online. Amongst many others, we support MP3, M4A, WAV and WMA. You can use the options to control audio quality and file size.
or drop your file here.
M4B audio files are nearly identical to M4A files. They are usually encoded with the AAC codec. M4A files contain audio books and the file format supports chapters and bookmarking. These files is supported by iTunes or VLC.
M4B ConverterAAC is an audio file format that works similar to MP3 but compresses more than MP3. It significantly reduces the audio file size without losing the quality. To reduce the file size it uses the MPEG-4 standard to cut off the low frequency sounds that cannot be heard in a human’s ear.
AAC Converter