Sonic Visualiser is an application for inspecting and analysing the contents of music audio files. It combines powerful waveform and spectral visualisation tools with automated feature extraction plugins and annotation capabilities. Version 2.4.1 of Sonic Visualiser is now available. This is a bugfix release, fixing one serious defect that caused crashes when rendering certain layers. http://www.sonicvisualiser.org/ For more information, please read the change log at: http://code.soundsoftware.ac.uk/projects/sonic-visualiser/repository/entry/… Sonic Visualiser uses Vamp plugins for automated audio feature analysis. For more information about Vamp plugins, including downloads and developer resources, see http://vamp-plugins.org/ Sonic Visualiser is Free Software under the GNU General Public Licence, developed at the Centre for Digital Music, Queen Mary University of London. Chris