Codec 2

Codec 2
Developer(s)David Grant Rowe
Initial releaseAugust 25, 2010 (2010-08-25)
Stable release
1.2.0 / June 24, 2023 (2023-06-24)
Repositorygithub.com/drowe67/codec2
Written inC99
PlatformCross-platform
TypeAudio codec
LicenseGNU LGPL, v2.1
Websitewww.rowetel.com?page_id=452

Codec 2 is a low-bitrate speech audio codec (speech coding) that is patent free and open source. Codec 2 compresses speech using sinusoidal coding, a method specialized for human speech. Bit rates of 3200 to 450 bit/s have been successfully created. Codec 2 was designed to be used for amateur radio and other high compression voice applications.

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