The MP4 file format and the .mp4 filename extension refer to the MPEG-4 part 14 digital multimedia format developed by the Moving Picture Experts Group. It is used as a multimedia container to wrap encoded digital video and audio streams, including subtitles and still images if required. In recent decades, the format has been popularized as one of the main standards for streaming media over the internet and other computer networks and for the digital distribution of large multimedia files. MP4 supports a large number of compression audio codecs allowing files in this format to maintain a relatively small size without discounting playback quality.
A .caf extension file is a Coral Audio Format file. This format is quite advanced as compared to older formats of digital audio like .wav and .aiff. The .caf format files are of a very high resolution in terms of recording and editing as well as playback. They offer features like unlimited file size, excellent recording, multiple data formats, auxiliary data and data dependency support.
FreeFileConvert uses tuned encoding for MP4 to CAF conversions, preserving clarity while trimming file size. Finished audio streams instantly across phones, tablets, desktops, and modern browsers without extra tweaks.
Upload MP4 files from desktop, tablet, or cloud storage, queue multiple jobs, and let the converter finish autonomously. Return whenever convenient to download synchronized CAF results on any device you rely on.
Process up to 5 files sized 1000 MB per batch without splitting queues manually. Mixed-format uploads convert together, producing consistent CAF audio with dependable progress tracking.
The MPEG-4 Part 14 is standardized as part of the MPEG-4 format in ISO/IEC 14496-14:2003. It is recognized as a container format for audio and video streams and references several filename extensions of which .mp4 is one. The MPEG-4 Part 14 is in many ways identical to Apple's QuickTime format which formed the basis of MPEG-4. However, there are slight differences in compatibility with other previously standardized MPEG features and the added support for IOD or initial object descriptors which describe elementary data streams and set profile information of the resources needed for content playback.
A .caf format file uses 64-bit file offset technology that can save a large number of recorded audio files in different formats and metadata tracks. Apart from audio data, these files store information like text, channel layouts, markers and annotations. Programs like Logic Studio and Soundtrack Pro frequently use CAF format files for additional sound effects and surround sound audio compression.
Upload your video file in the MP4 format from your device, Dropbox, or Google Drive.
Select CAF as the output format and click Convert. Adjust optional settings if needed.
Download the converted audio file. Each file stays available for up to 5 downloads.