Convert sd2 to gsm

What is the difference between .sd2 and .gsm?

Developer: Avid Technology; European Telecommunications Standards Institute (ETSI)

Description: The Sound Designer II file, with the extension .sd2, is an audio file format that was originally developed by Digidesign for their digital audio workstation software, specifically for use in professional recording and editing environments. The format was widely used for its high-quality audio data storage and was particularly popular in the late 80s and 90s. It supports multiple audio channels and bit depths, making it versatile for various audio production tasks.; A lossy file format used to compress speech in Global Standard for Mobile (GSM) telecommunications. It is very effective for reducing audio file size. However, encoding and decoding audio signals severally is discouraged as the final product will have a lot of noise. Popular with some voice mail software but it is CPU intensive.