AES E-Library

← Back to search

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

This paper discusses the evaluation of Opus-compressed Ambisonic audio content through listening tests conducted in a virtual reality environment.The aim of this studywas to investigate the effect that Opus compression has on the Basic Audio Quality (BAQ) of Ambisonic audio in different virtual reality contexts---gaming, music, soundscapes, and teleconferencing. The methods used to produce the test content, how the tests were conducted, the results obtained and their significance are discussed. Key findings were that in all cases, Ambisonic scenes compressed with Opus at 64 kbps/ch using Channel Mapping Family 3 garnered a median BAQ rating not significantly different than uncompressed audio. Channel Mapping Family 3 demonstrated the least variation in BAQ across evaluated contexts, although there were still some significant differences found between contexts at certain bitrates and Ambisonic orders.

 

Author (s):
Affiliation: (See document for exact affiliation information.)
Publication Date:
Permalink: https://aes2.org/publications/elibrary-page/?id=22037


(349KB)


Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member Join the AES. If you need to check your member status, login to the Member Portal.

Type:
E-Libary location:
16938
Choose your country of residence from this list:










Skip to content