The latest development versions of Speex and SpeexDSP are always available through Git. Note that packaging information for Debian can be found on the packages page. In addition, RareWares maintains useful Windows utilities such as SpeexDrop.
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Current Stable Release (recommended)
Speex 1.2.0
This is the latest stable release of the Speex codec library.
Downloads:
- New to Mac OS X, familiar with Windows. Windows has DirectShow, a good number of built-in filters, COM programming, and GraphEdit for very fast prototyping and snooping on the graphs you've constr.
- For Windows or Mac computers that do not have a direct connection to the Internet, download the installation file to a local network folder, USB stick, or other portable media. Then, transfer the installation file onto the hard drive of the local computer prior to running the installation program.
- DirectShow, codename Quartz, is a multimedia framework and API produced by Microsoft for software developers to perform various operations with media files or streams. The fact that the decklink card does not work with 2 plugins that work with any other DirectShow compatible hardware, make me think of a wrong DirectShow implementation.
Current Unstable Release (recommended)
SpeexDSP 1.2rc3
This brown-paper-bag release adds two headers that should have been included with SpeexDSP 1.2rc2. These are needed to build the resampler with NEON optimizations and to build SpeexDSP without the Speex codec library.
Downloads:Speex 1.2rc2 and SpeexDSP 1.2rc2
This release splits the speex codec library and the speex DSP library into separate source trees. Both projects received build-system improvements, bugfixes, and cleanup. The speex codec's VBR tuning was improved, while the speexdsp resampler got some NEON optimizations.
Downloads:1.2rc1
This release adds support for acoustic echo cancellation with multiple microphones and multiple loudspeakers. It also adds an API to decorrelate loudspeaker signals to improve multi-channel performance. In the bugfix department, there are fixes for a few bugs in the echo canceller, jitter buffer and preprocessor. At this point, the API for 1.2 should be stable and only a few very minor additions are planned.
Downloads:1.2beta3
The most obvious change in this release is that all the non-codec components (preprocessor, echo cancellation, jitter buffer) have been moved to a new libspeexdsp library. Other changes include a new jitter buffer algorithm and resampler improvements/fixes. This is also the first release where libspeex can be built without any floating point support. To do this, the float compatibility API must be disabled (--disable-float-api or DISABLE_FLOAT_API) and the VBR feature must be disabled (--disable-vbr or DISABLE_VBR).
Downloads:1.2beta2
Directshow Software
Again, this new releases brings many improvements. The RAM requirement for wideband has gone down drastically (i.e. more than 2x). A new resampler module has been added, providing arbitrary sampling rate conversion -- fast. The echo canceller has also been improved. A bug in 1.2beta1 that made the echo canceller unstable has been fixed. The echo canceller should now converge faster, be robust and tolerant of incorrect capture-playback synchronisation. The preprocessor has also been greatly improved. Not only should the quality be better, but it is now fully converted to fixed-point. At last, early TriMedia support (incomplete) has been merged.
Downloads:Directshow Download Windows 10
- No Windows binaries -- looking for a maintainer
Previous Stable Release (old, not recommended)
1.0.5
The main change with this release is that it includes API additions from the 1.1.x branch (while being backward compatible), so that transition from 1.0.x to 1.1.x can be made easier.
DirectShow Filters
Directshow Mac
If you just want to listen to Speex files in Windows Media Player, get Xiph.Org's DirectShow Filters for Speex.