Home  /  File formats  /  m4b

M4B file format

DescriptionM4B is a filename extension for MPEG-4 Part 14 multimedia container format. It is a type of audiobook format that can be used for storing spoken-word audio books, podcasts, and other spoken content. The M4B format is similar to the M4A format, which is used for storing audio-only files, but M4B is specifically designed for audiobooks.
Technical detailsThe M4B format is based on the MPEG-4 Part 14 standard, which specifies how digital audio and video content should be organized and stored in a file. Like other MPEG-4 files, M4B files use the AAC (Advanced Audio Coding) compression algorithm to reduce the size of the audio data while maintaining high sound quality. One of the key features of the M4B format is its ability to support chapter markers, which can be used to divide the audiobook into sections, making it easier for listeners to navigate and find specific parts of the content. This feature is especially useful for longer audiobooks that may have multiple parts or sections. The M4B format can be played on a variety of devices, including smartphones, tablets, and computers. It is supported by popular media player software such as iTunes, VLC, and Windows Media Player. M4B files can also be converted to other audio formats such as MP3, WAV, and FLAC using software tools designed for this purpose.