AfterDawn: Tech news releases Speex compressed audio format for voice

Written by Lasse Penttinen @ 24 Mar 2003 8:26

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) also announces that are now a legimate non-profit organization.

After about a million pages of documentation, a billion phonecalls and endless amounts of patience, the Xiph.Org Foundation has been recognized by the IRS as a 501(c)3 Non-Profit Organization. - press release

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