WEB ACCESS TO SONIC REPRESENTATION OF BIOLOGICAL SIGNALS
Introduction: Sonification represents the transformation of data relations into perceived relations in an acoustic signal for the purposes of facilitating interpretation or communication. Distribution of the visualization process over the World-Wide Web allows remote access and cooperation amongst teams of experts that are located in different places.
Implementation. This paper presents a prototype implementation of a distributed system for visualization and sonification of scientific data. The web-based application presents visualization and sonification of processed electrocardiographic (ECG) signals.
Signals. The signals were obtained from Physiobank (http://www.physionet.org/physiobank/) and include normal sinus rhythm and pathological rhythm such as atrial fibrillation, congestive heart failure and sleep apnea. With the currently available technology it is possible to apply distributed systems to many applications. In the field of visualization and sonification, very often systems do not reach a good number of potential end-users.
Results: The access to all clips created by various sonification procedures uses the address of the sonification laboratory group site: www.medinfo.umft.ro/dim/sonification. It is being used not only for the testing the discriminant power of various combinations of sonification procedures of ECG signals, but also for access to sonification clips obtained on other types of signals (mouse pulse waves, human heart rate etc).
Conclusion: The system presented in this paper is a possible solution for remote visualization and sonification of processed signals.