M4A to MIDI Converter

M4A (MPEG-4 Part 14)

M4A is a file extension used in compressed MPEG-4 audio files that have a lossy compression algorithm. M4A is pretty much very similar to another popular compressed audio format, but is designed to have better quality in the same or even smaller file size. The M4A format was developed by Apple in 2004 and is based on the QuickTime format. Music available for purchase on iTunes usually uses M4A recordings. Many M4A files are encoded with the Advanced Audio Coding (AAC) lossy codec to reduce file size. Some M4A files may use the Apple Lossless Audio Codec (ALAC) instead. The M4A format provides good compression with high sound quality. Any compatible media player will work to play M4A audio, including Apple iTunes, Windows Media Player, VideoLAN VLC media player, Nullsoft Winamp, Apple QuickTime Player, and others.

MIDI (Musical Instrument Digital Interface)

MIDI was created in 1982 by leading manufacturers of electronic musical instruments - Yamaha, Roland, Korg, E-mu, and others. Manufacturers wanted an easy way to make their products compatible with devices from other brands. Unlike regular audio files such as MP3 or WAV, MIDI files do not contain actual audio data and are therefore much smaller. The MIDI interface transmits information about the actions performed on the musical device - for example, pressing a key. This contains information about two parameters: the number of the pressed key and the force of impact on it. Before the advent of standard MIDI files, an arrangement prepared in one sequencer could not be loaded into another due to format incompatibilities. Another plus of MIDI is that polyphony was originally laid in this standard. That is, you could easily use multiple tools.