AfterDawn: Tech news

Xiph.org 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)


Xiph.org 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.

Xiph.org - press release

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