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Speex: a free codec for free speech

Downloads

Note that packaging information for Debian can be found on the packages page. If you're interested in anonymous Subversion access, please see the Xiph.Org Subversion Access page. In addition, RareWares maintains useful Windows utilities such as SpeexDrop.

Current Unstable Release (recommended)

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

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:

Current 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

If you just want to listen to Speex files in Windows Media Player, get illiminable's DirectShow Filters for Speex.

Looking for something even older? Check our older downloads page.