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Understanding Audio File Formats: WAV, MP3, and MIDI Explained

Audio files come in various formats, with WAV, MP3, and MIDI being among the most common. WAV files, the standard for CD audio, are large, taking up about 2.5MB per minute of sound. In contrast, MP3 files offer significant storage savings, compressing audio to as little as 0.25MB per minute without noticeable quality loss, thanks to psychoacoustic modeling. MIDI, or Musical Instrument Digital Interface, represents music digitally, storing note information rather than sound waves. This makes MIDI files compact and versatile for various applications.

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Understanding Audio File Formats: WAV, MP3, and MIDI Explained

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  1. Which Sound File?

  2. .Wav File • WAV is the most common file type to save a sound file as. One minuet of sound saved as WAV requires 2.5mb of disk space. The WAV format is used when audio is stored on CD’s

  3. MP3 File • MP3 is a extension of a MPEG audio file. It primarily compresses algorithm that can be applied to a number of audio formats. MPEG is based on a psychoacoustic modelling that removes frequencies the brain and ear will not miss, this substantially reduces the file size. By using MPEG you can achieve one tenth of the WAV file size without any apparent loss of quality. One minuet of MP3 can be the size of 0.25 mb

  4. Midi File • MIDI stands for Musical Information Digital Interface, it is widely used to represent instrumental music. It does not store sound waves. Instead it stores a digital representation of the notes to be played. The resulting form is very compact and very flexible for many purposes. It is easy to transport into a different key, play on different instruments and synthesize musical notation from it.

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