Sonifying multichannel ultrasound data for periphonic loudspeaker array
Romero, Juan Alzate
Troge, Thomas A.
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The following paper describes several transformations of ultrasonic data into musical material for hemispheric loudspeaker setup. This data comes from a medical prototype for the purpose of early breast cancer detection via 3D multimodal imaging. The data is acquired in a semi-ellipsoid mesh of thousands of ultrasonic emitters and receivers surrounding the measurement object with water as medium. A hemispheric loudspeaker array can reflect this aperture design and offers the possibility of projecting this data in a direct fashion for auditory display. The ultrasounds in the megahertz range are inaudible and need to be transformed into the audible range. We here describe our investigations and methods to transfer medical ultrasound data in an artistic context and report on our insights using different sonification strategies to gain audible, musical material.