AMR to M4B Converter

AMR (Adaptive Multi-Rate) is a popular audio file format that is primarily used for speech coding. It was originally developed for GSM (Global System for Mobile Communications) networks to compress audio files in order to save bandwidth. AMR files have a low bit rate which makes them ideal for storing audio recordings on mobile devices with limited storage capacity. One of the key features of AMR files is their ability to adapt the bit rate based on the complexity of the audio being recorded. This means that the file size can vary depending on the content, resulting in more efficient compression. AMR files are commonly used for recording phone conversations, voice memos, and other types of audio recordings on mobile devices. They are also supported by a wide range of media players and audio editing software. Overall, AMR files are a convenient and efficient way to store audio recordings while maintaining good sound quality.

M4B is a file extension for an MPEG-4 audio book file format. It is similar to the more commonly known MP3 format, but specifically designed for audiobooks. M4B files typically contain audio content such as spoken word recordings, podcasts, or audiobooks. One key feature of M4B files is the ability to bookmark specific points in the audio, making it easy for users to resume listening from where they left off.