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A Method for Multimodal Auralization of Audio-Tactile Stimuli from Acoustic and Structural Measurements

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A new method for the reproduction of sound and vibration for arbitrary musical source material based on physical measurements is presented. Tactile signals are created by the convolution of ”uncoupled” vibration with impulse responses derived from mechanical impedance measurements. Audio signals are created by the convolution of anechoic sound with binaural room impulse responses. Playback is accomplished through headphones and a calibrated motion platform. Benefits of the method include the ability to make multimodal, side-by-side listening tests for audio-tactile stimuli perceived in real music performance situations. Details of the method are discussed along with obstacles and applications. Structural response measurements are presented as validation of the need for measured vibration signals in audio-tactile displays.

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