Sound Visualization and Analysis Tools

by Pat Leonard last modified 2007-08-15 10:45
LO Sound Tools At the Cornell Lab of Ornithology, we develop user-friendly sound visualization and analysis software for a broad range of users.

The programs listed below range from simple visualization tools suitable for diverse users, to sophisticated visualization, analysis, and development environments for advanced users and scientists.

VisualizationAnalysis Development

Raven Viewer provides visual access to the sounds in the Macaulay Library archive, the world's largest collection of recorded animal sounds. Raven Viewer was awarded Second Place in Science magazine's 2006 Science and Engineering Visualization Challenge (Interactive Multimedia category).

To download SoundViewer go to:


Raven Lite is a free software program that lets users record, save, and visualize sounds as spectrograms and waveforms. Raven Lite is intended for students, educators, and hobbyists, and can be used for learning about sounds, as an aid in birdsong recognition, and in musical instruction.


Raven Pro is a program for the acquisition, visualization, measurement, and analysis of acoustic signals. Raven Pro provides a powerful, user-friendly research and teaching tool for scientists working with sound. Raven Pro's highly configurable views provide unparalleled flexibility in data display.

To learn more and download Raven software go to:


XBAT is an open-source sound analysis application and MATLAB platform for developing sound analysis tools created at the Bioacoustics Research Program. Users can access and visualize sounds, browse and search for salient events, and annotate and measure events. Developers can quickly create easy-to-use extensions with a powerful plug-in architecture.

To learn more about the XBAT project go to: