The Different Types of Audio Files
Like all forms of technology, audio recording devices have changed many times throughout the course of history. Audio recordings can now be captured and stored on incredibly small devices, or they can be transferred to an entirely digital platform. Audio files can even be shared across the Internet with the simple click of a button. As technology has advanced further, a variety of different audio file formats has also emerged. Certain audio file formats are better suited to different purposes. This guide explores the different types of audio files currently available and the best uses for each one.
Waveform audio
Waveform audio file format—frequently abbreviated WAV—is a common type of file format originally designed for exclusive use on PCs. However, current iterations of this file format are usable on all computer operating systems. WAV files store data in chunks of audio, and they’re typically used for raw or uncompressed audio files. This type of file format also stores audio files in their entirety. As such, it’s regarded as a virtually lossless format for audio files—although such files do tend to be rather large as a result. WAV files can be compressed, which doesn’t affect the integrity of the audio file in any way and generally creates no discernible difference in sound quality. ADAT tape transfer services generally convert audio files to a WAV format before further processing the files to different formats and bitrates.
MP3
MP3 files are categorized under the MPEG standard, with MP3 files being the third installment of this standard. An MP3 file is essentially a compressed version of a WAV file. MP3 files are generally one-twelfth the size of WAV files, but they maintain the same quality of sound. Compressing the files in this way enables an individual to save space in their audio storage system without sacrificing the quality of the files themselves. Because MP3 files are quite small, they can easily be stored on mobile audio playing devices such as cell phones and the now-defunct iPod.
MP4
MP4 audio files are often believed to be more advanced versions of MP3 files. However, this is not the case. MP3 and MP4 files both operate under the MPEG standard, but MP4 files can store a much wider variety of data. MP4 files are compatible with both audio and video files, and they can even accommodate video subtitles. Like MP3 files, they’re generally quite small, and they can be easily streamed on mobile devices and across the Internet.