This format first emerged in the late 1980s as a development of Apples specialists. It is a standardized format for storing audio data. AIFF files are not compressed, which is why they are larger than mp3. The audio file contains samples and loop information. It is most often used by qualified musicians who need high-quality sound. One minute of audio in the AIFF format requires 10 megabytes of disk space. The encoding process excludes data loss, which makes this format similar to WAV.

opus

Opus (formerly Harmony): an audio codec for lossy compression

This format was created for online broadcasting. Opus is an audio codec for compression used on the Internet in real-time mode. Employed by programs such as Skype and Mozilla. Mostly used in interactive applications. The advantages of Opus are high audio quality and good compression. It works only on devices powered by Windows. Opus files can be converted to similar extensions.