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 Readme for:  Development » Library » Audio » libspeex.lha

Libspeex

Description: Speex - A free codec for free speech
Download: libspeex.lha       (TIPS: Use the right click menu if your browser takes you back here all the time)
Size: 2Mb
Version: 1.2.1-RC1
Date: 02 Jul 10
Author: Xiph.org Foundation (OS4 port by Michael Trebilcock)
Submitter: Michael Trebilcock
Homepage: http://www.speex.org/
Category: development/library/audio
Replaces: development/library/audio/libspeex.lha
License: GPL
Distribute: yes
Min OS Version: 4.0
FileID: 5660
 
Comments: 2
Snapshots: 0
Downloads: 115  (Current version)
295  (Accumulated)
Votes: 0 (0/0)  (30 days/7 days)

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Changes: Now includes shared object library.

Both newlib/clib2 versions. speexdec and speexenc utilities included.

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. Finally,
Speex is part of the GNU Project and is available under the revised BSD license.

Speex is based on CELP and is designed to compress voice at bitrates ranging
from 2 to 44 kbps. Some of Speex's features include:

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

Note that Speex has a number of features that are not present in other codecs,
such as intensity stereo encoding, integration of multiple sampling rates in the
same bitstream (embedded coding), and a VBR mode.




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