How to Record Audio
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Audio file formats

Digital recordings of audio can be saved / stored in a variety of file formats. This depends on whether the files are compressed or uncompressed. Uncompressed files are large but retain all of the audio information and are high quality. Compressed files may reduce the size of files by up to 90% by discarding information without a large loss of quality. The file formats that you need to be aware of are detailed below:

Audacity Project format (AUP)

Audacity projects are stored in an AUP file, which is its unique format, so it can open and save projects extremely quickly. The Audacity Project format is not compatible with any other audio programs, so when you are finished working on a project and you want to be able to share and play the audio file on other devices it needs to be exported /saved in a different format.

WAV (Windows Wave format)

This is the normal uncompressed audio format on Windows, and is supported on almost all computer systems.

AIFF (Audio Interchange File Format)

This is the normal uncompressed audio format on the Macintosh, not quite as common as the WAV format.


Mp3 format is the most popular format for downloading and storing music and speech. By eliminating portions of the audio file that are essentially inaudible, mp3 files are compressed to roughly 10%  the size of an equivalent uncompressed file while maintaining good audio quality.

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