Speex

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Speex
Version: 1.2 beta2
Platforms: Series 60, Series 80, Series 90, Symbian OS, UIQ
Developer: Jean-Marc Valin
Distribution Type: Freeware
Downloads: 1355
File Size: 526 Kb

Rating: 2.8/5 (Total votes: 10)

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Speex  is an Open Source/Free Software patent-free audio compression format designed for speech.


The Speex Project aims to lower the barrier of entry for voice applications by providing a free alternative to expensive proprietary speech codecs.

Moreover, Speex is well-adapted to Internet applications and provides useful features that are not present in most other codecs.
· 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)
· Fixed-point port
· Acoustic echo canceller
· Noise suppression

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