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.
Speex is a useful audio compression utility that will come in handy. Speex is based on CELP and is designed to compress voice at bitrates ranging from 2 to 44 kbps.
Here are some key features of "Speex":
￭ 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)
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