Context-Based Evaluation of the Opus Audio Codec for Spatial Audio Content in Virtual Reality

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-04-18 DOI:10.17743/jaes.2022.0068

Ben Lee, Tomasz Rudzki, J. Skoglund, G. Kearney

引用次数: 1

Abstract

This paper discusses the evaluation of Opus-compressed Ambisonic audio content through listeningtestsconductedinavirtualrealityenvironment.Theaimofthisstudywastoinvestigate theeffectthatOpuscompressionhasontheBasicAudioQuality(BAQ)ofAmbisonicaudioindifferentvirtualrealitycontexts—gaming,music,soundscapes,andteleconferencing.The methodsusedtoproducethetestcontent,howthetestswereconducted,theresultsobtainedandtheirsignificancearediscussed.Keyfindingswerethatinallcases,Ambisonicscenes compressedwithOpusat64kbps/chusingChannelMappingFamily3garneredamedianBAQratingnotsignificantlydifferentthanuncompressedaudio.ChannelMappingFamily3 demonstratedtheleastvariationinBAQacrossevaluatedcontexts,althoughtherewerestillsomesignificantdifferencesfoundbetweencontextsatcertainbitratesandAmbisonicorders.

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基于上下文的虚拟现实空间音频内容Opus音频编解码器评估

本文讨论了在虚拟现实环境中通过收听测试来评估Opus压缩的Ambisonic音频内容。本研究的目的是调查在不同的现实环境中，即游戏、音乐、声景和电子会议中，压力对音频基本音频质量（BAQ）的影响。制作测试内容的方法，测试是如何进行的，获得了结果，并讨论了其意义。关键发现是，在所有情况下，使用64kbps/chusingChannelMappingFamily3压缩的AmbisonicGenes获得的媒体NBAQrating与未压缩的音频没有显著差异。ChannelMappingFamily3演示了NBAQ在几个不同的上下文中的变化，尽管在某些特定的上下文和Ambisoniccorder之间仍然存在一些显著的差异。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.