
Convert M4A to MP3
You can convert M4A video files to MP3 audio format as well as to variety of other formats with free online converter.
Upload m4a-file
Convert m4a to mp3
Download your mp3-file
Online and free m4a to mp3 converter
MPEG-4 Audio Layer
File extension | .m4a |
File category | audio |
Description | Apple Inc. has designed an M4A open-source format based on QuickTime Fike. Now the format is being promoted in the iTunes store. It is a multimedia container intended for the placement of sound components and other data, such as images. MPEG-4 files may be stored with extensions M4A and MP4. In the latter case, they contain video as well. Alongside these sound formats, MPEG-4 allows for lossy compaction through FFC Codec. However, it is possible to provide a lossless reduction thanks to the Apple Lossless format. The files may be played on Windows PCs via iTunes, Windows Media Player 12, KSP Sound Player, Winamp, and some other programs. With iTunes, the data can be converted into Windows-supported audio formats. |
Technical details | In comparison with its predecessor MP3, M4A format provides better sound quality and smaller file size. Thanks to lossless compaction, the data may be easily converted in both directions with no quality deterioration. The sound data encoded with ACC compression, which reduces the file size considerably. Due to protection technology DRM, MP4 files cannot be easily distributed, while it is much simpler to replicate files in M4A; that is why “Apple Lovers” prefer the latter format. With M4A, it is possible to buy music on iTunes and download it into smartphones or other devices. |
Programs | Microsoft Windows Media Player |
Developer | Apple |
MIME type |
MP3 Audio File
File extension | .mp3 |
File category | audio |
Description | MP3 (formally MPEG-1 Audio Layer-3 or MPEG-2 Audio Layer-3) is a digital format for storing audio files and audio streaming. MPEG programmers designed the format. It is one of the most required codecs for digital coding. The format is widely used in various file-sharing sites for evaluation downloading. Due to lossy compression in this audio format, it is possible to compress CD tracks up to 1/10 of their original size while maintaining high playback quality. Moreover, it can be encoded at higher or lower bit rates to adjust the resulting quality. Overtones, which cannot be perceived by a human ear, are removed. Complex algorithms allow for a smaller size of tracks. As a result, one compact disk can contain several hundred songs. MP3 is compatible with all the most popular operating systems and is supported by most modern DVD-players and music systems. |
Technical details | Before MP3 introduction, MPEG-1 had been widely used. That format contained not only audio data but images as well. MP3 breaks an audio file into parts of the same length. When the processing is over, each part is packed into its frame. It involves the spectral limit technology that requires a continuous input signal to provide the use of two adjacent structures. When spectral deleting is over, the file is to be compressed with mathematic methods. If necessary, the compression rate can be changed, even inside the same frame. Files of 128 kbit/s have 11-fold compression. Further reduction of the file size will lead to a significant deterioration in sound quality. |
Programs | Microsoft Windows Media Player |
Developer | Moving Picture Experts Group |
MIME type |
-