Loris 1.5.1 released

Loris 1.5.1 has been released.

Loris is an open source library implementing sound analysis, synthesis, and morphing, developed by Kelly Fitz and Lippold Haken at the CERL Sound Group. Loris includes a C++ class library, a Python module, a C-linkable interface, and documentation.

Loris 1.5.1 is a minor upgrade to Loris 1.5, offering enhancements to the command line analysis and synthesis tools to support the mixed derivative (convergence) bandwidth analysis introduced in Loris 1.5, and improving the consistency between some related modules, and between their default behavior in different interfaces (C++ and Python and the command line utilities).

Loris 1.5 offers bug fixes and new features, relative to Loris 1.4. Among the new features, an option has been added to the Analyzer to compute bandwidth envelopes using sinusoidality (or convergence) estimator based on the mixed partial derivative of the phase spectrum; fundamental frequency tracking has been improved; the Channelizer interface has been expanded, and the accuracy of stretched harmonic channelization (for piano tones) has been improved.

Some of the changes in Loris 1.5 are incompatible with older Loris versions, and may require changes to existing program code.

Loris can be downloaded from http://sourceforge.net/projects/loris

For more information about Loris, contact the developers at loris@cersloundgroup.org, or visit them at http://www.cerlsoundgroup.org/Loris