A VIRTUAL REALITY TOOL TO AID IN SOUNDSCAPES IN THE BUILT ENVIRONMENT (SIBE) THROUGH MACHINE LEARNING

Le résumé fourni par la source

Can we use virtual-reality tools to design audio-visual elements and optimize them for the user's benefit?A sound simulation algorithm in MATLAB was developed to extract the room impulse response of the test environment in a virtual environment (IRV) and compare it with the real environment (IRR).In the developed program, the image source model (ISM) was used to be performed the real-time acoustic source generation and real-time signal recording, image functions, data processing, and metric calculation operations.To achieve audio and psychoacoustic analysis, we used a nature sound (Bird) and human-generated sound (Speech) as the original sound signals.B&K 4292 Omni-power loudspeaker, B&K 2716 power amplifier, and B&K 2250 hand-held analyzer were used to measure impulse response in the real environment.In addition to impulse response, psychoacoustic metrics such as loudness, sharpness, roughness, and fluctuation strength were calculated in both environments.The results showed that sound simulation, based on the image source model, demonstrates validation of the virtual environment, and can be used to characterize virtual reality development environments.

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