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

IF 1.1 4区工程技术 Q3 ACOUSTICS

Journal of the Audio Engineering Society 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

Journal of the Audio Engineering Society 工程技术-工程：综合

CiteScore

3.50

自引率

14.30%

发文量

审稿时长

1 months

期刊介绍： The Journal of the Audio Engineering Society — the official publication of the AES — is the only peer-reviewed journal devoted exclusively to audio technology. Published 10 times each year, it is available to all AES members and subscribers. The Journal contains state-of-the-art technical papers and engineering reports; feature articles covering timely topics; pre and post reports of AES conventions and other society activities; news from AES sections around the world; Standards and Education Committee work; membership news, patents, new products, and newsworthy developments in the field of audio.