Distortion analysis of hierarchical mixing technique on MPEG surround standard

Elfitri, Ikhwana; Muharam, Mumuh; Shobirin, Muhammad

doi:10.1109/icacsis.2014.7065868

Cited by 11 publications

(2 citation statements)

References 8 publications

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“…Accuracy Closed-loop SAC method [61][62][63][64][65] has been introduced to improve accuracy of the rendered audio signals. This method aims to improve further performance of any SAC technique by minimizing error and distortion caused by the processes of encoding and quantisation.…”

Section: Improving Reconstructed Audiomentioning

confidence: 99%

Reviews on Technology and Standard of Spatial Audio Coding

Elfitri

Luthfi²

2017

JNTE

Self Cite

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Market demands on a more impressive entertainment media have motivated for delivery of three dimensional (3D) audio content to home consumers through Ultra High Definition TV (UHDTV), the next generation of TV broadcasting, where spatial audio coding plays fundamental role. This paper reviews fundamental concept on spatial audio coding which includes technology, standard, and application. Basic principle of object-based audio reproduction system will also be elaborated, compared to the traditional channel-based system, to provide good understanding on this popular interactive audio reproduction system which gives end users flexibility to render their own preferred audio composition.

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Section: Improving Reconstructed Audiomentioning

confidence: 99%

Reviews on Technology and Standard of Spatial Audio Coding

Elfitri

Luthfi²

2017

JNTE

Self Cite

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“…There are two features in the next-generation audio system that differ from previous systems: immersiveness and personalization [1]. For the immersiveness, spatial audio techniques such as MPEG Surround [2] and NHK 22.2 [3] could provide a three-dimensional audio reproduction that mono or stereo audio cannot provide. For the personalization, the audio system should be compatible with different playback environments and equipment according to user needs.…”

Section: Introductionmentioning

confidence: 99%

Efficient Multi-Step Audio Object Coding with Limited Residual Information

Wang

et al. 2021

2021 IEEE International Conference on Multimedia and Expo (ICME)

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Spatial audio object coding (SAOC) is an effective method to transmit multiple audio objects. Audio systems can provide personalized services under this framework. However, this method causes frequency aliasing distortion, which severely impacts the listening experience. The multi-step SAOC (MS-SAOC) scheme was proposed to enhance the sound quality of each audio object by using residual information. Compared with SAOC, the bit-rate increases three times due to the residual data of multiple objects. In this paper, an efficient multistep residual coding method is proposed to reduce the residual bit-rate of MS-SAOC. A two-level filter is designed to remove redundant residual information, and the limited residual information can efficiently compensate for frequency aliasing distortion. From experiment results, the residual bit-rate is half of MS-SAOC, and the sound quality is maintained at the Good-Excellent level.

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Audio object coding based on optimal parameter frequency resolution

Wang

et al. 2019

Multimed Tools Appl

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Distortion analysis of hierarchical mixing technique on MPEG surround standard

Cited by 11 publications

References 8 publications

Reviews on Technology and Standard of Spatial Audio Coding

Reviews on Technology and Standard of Spatial Audio Coding

Efficient Multi-Step Audio Object Coding with Limited Residual Information

Audio object coding based on optimal parameter frequency resolution

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