lore
1
After a year of development, Speex has finally hit the big-time and gone to version 1.0. Speex is a CELP-based free and open audio compression codec specifically tuned to compress human speech at bitrates ranging from 2 to 44 kbps. The bitstream and API are now officially frozen.
Speex is optimized for compressing human voice. It delivers clear human vocals with low bitrate / bandwith usage. The primary use for Speex is naturally in VoIP (Voice over IP) applications. Software developers now have a open & free compression technology available for use in their projects.
Narrowband (8 kHz), wideband (16 kHz), and ultra-wideband (32 kHz) compression in the same bitstream
Intensity stereo encoding
Packet loss concealment
Variable bitrate operation (VBR)
Voice Activity Detection (VAD)
Discontinuous Transmission (DTX)
http://www.xiph.org/press/2003/nonprofitspeex1/
Speex is optimized for compressing human voice. It delivers clear human vocals with low bitrate / bandwith usage. The primary use for Speex is naturally in VoIP (Voice over IP) applications. Software developers now have a open & free compression technology available for use in their projects.
Narrowband (8 kHz), wideband (16 kHz), and ultra-wideband (32 kHz) compression in the same bitstream
Intensity stereo encoding
Packet loss concealment
Variable bitrate operation (VBR)
Voice Activity Detection (VAD)
Discontinuous Transmission (DTX)
http://www.xiph.org/press/2003/nonprofitspeex1/