Introduction - If you have any usage issues, please Google them yourself
It is an open source, free, patent free audio compression format for speech. Speex works to reduce the threshold for voice applications by providing an alternative to high-performance speech codecs. In addition, compared with other codecs, Speex is also suitable for network applications, and has its own unique advantages in network applications. At the same time, Speex is part of the GNU project and has been well supported in the revised BSD protocol