A master thesis from Aalborg University
Efficient Dynamic Rendering of Room Acoustics: The Development of a Hybrid Real-Time Model
Author(s)
Term
4. Term
Education
Publication year
2022
Submitted on
2022-05-25
Pages
84 pages
Abstract
This thesis presents a hybrid algorithm for efficient dynamic rendering of room acoustics. To find the optimal perceptual trade-off between resolution and computational efficiency, perceptual listening experiments on the significance of different orders of early reflections were conducted. Based on the findings, a hybrid tool was designed and implemented in JUCE, combining dynamically rendered first-order reflections with convoluted late reverberation. A usability evaluation and a heuristic interview, proved the performance of the designed algorithm to be very effective. Moreover, a signal comparison and a perceptual comparison against a measured room impulse response, proved that while the proposed algorithm shares many attributes with the real room, some differences (possibly from the measurement of the room impulse response) are present.
This thesis presents a hybrid algorithm for efficient dynamic rendering of room acoustics. To find the optimal perceptual trade-off between resolution and computational efficiency, perceptual listening experiments on the significance of different orders of early reflections were conducted. Based on the findings, a hybrid tool was designed and implemented in JUCE, combining dynamically rendered first-order reflections with convoluted late reverberation. A usability evaluation and a heuristic interview, proved the performance of the designed algorithm to be very effective. Moreover, a signal comparison and a perceptual comparison against a measured room impulse response, proved that while the proposed algorithm shares many attributes with the real room, some differences (possibly from the measurement of the room impulse response) are present.
Keywords
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