MP3 (Moving Picture Experts Group Layer-3 Audio)
- MP3 uses lossy compression as it removes a lot of the sounds in songs which our ears are unable to hear. This results in MP3 files being around 11 times smaller than uncompressed music tracks.
- MP3 is generally used for music and podcasts. Almost every portable digital music player supports the MP3 audio format.
WAV (Waveform Audio Format)
- Like MP3, WAV is used in all areas of audio such as portable players and handheld recorders. It was developed by Microsoft IBM in 1991.
- However unlike MP3, WAV is lossless as it uses analogue to digital converters to take samples thousands of times per second and converting the audio signal to binary. Also, most of the time, WAV uses PCM (Pulse-Code Modulation) which uses an uncompressed, lossless storage method.
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