Skype developers have posted a detailed blog post on a new audio codec named Opus.
The company said that they plan to switch to it in future because it is better than the available options.
Because Opus was designed for the Internet, it can adjust seamlessly on-the-fly between any of its operating modes to adjust to variations in available internet resources, whether moving from 3G to Wi-Fi or competing with the house next door for broadband bandwidth. Furthermore, it has multiple mechanisms to deal with and recover from packet loss plaguing the network, making for fewer annoying gaps in conversation and lost moments in your precious calls. Future Skype users will talk in CD quality (fullband stereo) using Skype.