Ultrasonic Sensor-Based Personalized Multichannel Audio Rendering for Multiview Broadcasting Services. (8th April 2013)

• Record Type: Journal Article
• Authors: Kim, Yong Guk; Moon, Sang-Taeck; Choi, Seung Ho; Kim, Hong Kook
• Is Part Of: International journal of distributed sensor networks. Volume 9:Number 4(2013)
• Publication Date: 2013-04-08
• Subjects: Sensor networks -- Periodicals; Intelligent agents (Computer software) -- Periodicals; Multisensor data fusion -- Periodicals; 681.2
• DOI: 10.1155/2013/417574
• Languages: English
• ISSNs: 1550-1329

Abstract

An ultrasonic sensor-based personalized multichannel audio rendering method is proposed for multiview broadcasting services. Multiview broadcasting, a representative next-generation broadcasting technique, renders video image sequences captured by several stereoscopic cameras from different viewpoints. To achieve realistic multiview broadcasting, multichannel audio that is synchronized with a user's viewpoint should be rendered in real time. For this reason, both a real-time person-tracking technique for estimating the user's position and a multichannel audio rendering technique for virtual sound localization are necessary in order to provide realistic audio. Therefore, the proposed method is composed of two parts: a person-tracking method using ultrasonic sensors and a multichannel audio rendering method using MPEG Surround parameters. In order to evaluate the perceptual quality and localization performance of the proposed method, a MUSHRA listening test is conducted, and the directivity patterns are investigated. It is shown from these experiments that the proposed method provides better perceptual quality and localization performance than a conventional multichannel audio rendering method that also uses MPEG Surround parameters.