An Implementation of Inverse Cosine Hardware for Sound Rendering Applications

Sound rendering is the process of determining the sound propagation path from an audio source to a listener and generating 3D sound based on it. This task demands complex calculations, including trigonometric functions. This paper presents hardware-based inverse cosine function calculations using th...

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Bibliographic Details
Published inSensors (Basel, Switzerland) Vol. 23; no. 15; p. 6731
Main Authors Lee, Jinyoung, Kim, Cheong-Ghil, Moon, Yeon-Kug, Park, Woo-Chan
Format Journal Article
LanguageEnglish
Published Switzerland MDPI AG 27.07.2023
MDPI
Subjects
Accuracy
Approximation
Communication
Design
Digital signal processors
Efficiency
Embedded systems
Energy conservation
hardware
inverse cosine function
Physical properties
Realism
Sensors
Signal processing
trigonometric
Virtual reality
Wave propagation
inverse cosine function
hardware
trigonometric
Online AccessGet full text
ISSN1424-8220
1424-8220
DOI10.3390/s23156731

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Summary:Sound rendering is the process of determining the sound propagation path from an audio source to a listener and generating 3D sound based on it. This task demands complex calculations, including trigonometric functions. This paper presents hardware-based inverse cosine function calculations using the table method and linear approximation. This approach maintains a high accuracy while limiting hardware size for suitability in sound rendering applications. Consequently, our proposed hardware-based inverse cosine calculation method is a valuable tool for achieving high efficiency and accuracy in 3D sound rendering.
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ISSN:1424-8220
1424-8220
DOI:10.3390/s23156731