"Sonifikation (Verklanglichung) ist die Darstellung von Daten in nichtsprachlichen Klangereignissen. .... Sie hilft dabei, über das Hören Strukturen zu erfassen, und damit sowohl neue Gesetzmäßigkeiten als auch bereits bekannte Zusammenhänge darzustellen."... (wikipedia 2014)

Die Methode der Sonifikation wurde 2006 erstmalig von Gerold Baier, Thomas Hermann und Ulrich Stepanic auf biometrische Messdaten angewandt:
"Event-based sonification of EEG rhythms in real time" (in Clinical Neurophysiology, Volume 118, Issue 6, June 2007, Pages 1377–1386). G. Baier und Th. Hermann schreiben in ihrem Beitrag "Sonification: listen to brain activity! (Music that works, R. Haas, V. Brandes, Editors, 2009 Springer-Verlag Wien) "Sonification denotes in a general way the representation aof data by sounds and noises; it is established today as a scientific discipline in analogy to visualization..... As the main fields of application for sonification Kramer proposes: first: data exploration, the searching for any kind of interesting patterns in huge data bases that might be missed by visual scanning and second, data mining, the searching of high-dimensional data for predefined patterns...."  (vgl. Hören und Horchen)

Begriff und Technik der "Sonifikation" wird ursprünglich und im allgemeinen verwendet im Sinne einer "Analyse".

Im Gegensatz dazu wird Sonifikation hier im Sinne einer "Synthese" verwendet. Mittels einer speziell entwickelten Software zur Rhythmus Frequenz Modulation (®) können natürliche und biologische Rhythmen "verklanglicht" werden. Es resultieren Klangrhythmen, die zusätzlich dem Anspruch der Musiktherapie nach Emotionalität gerecht werden. Die Methode wird seit Anfang der 90iger Jahre im therapeutischen Bereich erfolgreich eingesetzt.

World Congress of Music Therapy 2014

Austria, Krems, July 7-12 2014

Poster Session

Sonification of Biological Rhythms - exemplified by the Sound of BRAC

Author: Annegret Linde


The Sonification of Biological Rhythms (SBR) allows therapeutic interventions independently of any cultural background. The aim of SBR is to retrain the patient’s rhythmicity affecting his emotional, mental a biological status. The accompanying optimization of the stress-management results in a balanced and stabilized organism. The used method of Rhythm frequency modulation (RFM) enables the therapist to compose harmonic mono-sounds on the basis of rhythm frequencies, e.g. the BRAC.


Scientific research points at the importance of time and function regulatory systems in human organisms for the management of stress regulation.  The Biological Rhythm System (BRS) is the most sensitive level of function and time regulation.  Disharmonious states of rhythmicity effect malaise and somatic symptoms.  Chronically disordered rhythmicity causes states of overstress and exhaustion resulting in the morphological changes of diseases.1,4,8,9

Music therapy aims at the reduction of stress and the initiation of healing processes to balance and stabilize the patient’s organism.3,6 One of the most intensive stress-reducing situations is “feeling at home and save”. In order to reproduce a similar stress-reducing setting by music, music therapy faces a great challenge in the present multicultural society. The patients’ preferences, fixed to their cultural background, involve a vast variety of music. The right choice of music for therapy is increasingly difficult and time-consuming.

In return, this special method of Sonification of Biological Rhythms (SBR) concentrates on the essential parts of music and rhythmicity. By combining the knowledge of chronobiology, medicine, physics, mathematics and music-sciences a universal, cultural independent mono sound such as BRAC (Basic Rest Activity Cycle) is generated enabling a remembrance and “retrainment” of rhythmicity. 2,7

Rhythm frequency modulation (RFM*) is a method to match the inner logic of a rhythm and the rural structures of music enabling the therapist to create a harmonically and rhythmically flowing mono-sound on the basis of a rhythm’s frequency. This is exemplified by the composition of BRAC.7

The generated mono sounds are applied using earphones and vibration equipment.  The combination of both applications provides an optimal therapeutic influence on the patient’s somatic, emotional and mental states. 5,6,10

Utilizing the knowledge of interdisciplinary research the SBR opens an additional therapeutic approach for music-therapy and research in a multicultural society.

[1] Baier, G., “Rhythmus - Tanz in Körper und Gehirn“, Hamburg 2001.
[2] Baier, G., Hermann, Th., “The sonification of rhythms in human encephalogram“, Proceedings of ICAD 04-Tenth Meeting of the International Conference on Auditory Display, Sydney, Australia, July 6-9, 2004.
[3] Haas, Brandes, Eds., “Music that works“, Wien 2009, Springer Verlag.
[4] Heinen, A., “Hypothetical communication model of interacting rhythms in live complex open systems”, lecture: ICSV13 The 13th International Congress on Sound and Vibration, Wien 2006.
[5] Heinen (Linde), A.1, Heinen, A.2, “Welche Möglichkeiten bieten Stimmfrequenzanalyse und Training mit körpereigenen Rhythmen Musikern und  Sängern im Rahmen von Prävention und Rehabilitation?",
lecture: 9th International Voice Symposium Salzburg “Künstlermedizin - Rehabilitation der Sing- und Sprechstimme / Stimmvorsorge“, Salzburg 2010.
[6] Heinen (Linde), A.1, Heinen, A.2, “The effects of sound and vibration to biological rhythm system in human organism – non-invasive screening, analysis and modulation via voice frequencies with ESS (Emotion and Stress Screening)* & RFM (Rhythm Frequency Modulation)*, lecture: ICSV13 The 13th International Congress on Sound and Vibration, Wien 2006.
[7] Linde, A., “Im Einklang der Körperrhythmen“, Handbuch 3. überarbeitete Version, Friedrichshafen 2011.
[8] Moser, Frühwirth, Penter, Winker, ”Why life oscillates – from a topographical towards a functional chronobiology”, Cancer Causes Control 2006, 17:591-599.
[9] Moser, Frühwirth, Kenner, ”The Symphony of Life”, IEEE Engineering in Medicine and Biology Magazine January/February 2008.
[10] Wigram, T., Dileo, Ch., Eds., ”Music Vibration”, New York 1997.


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