2014
DOI: 10.1049/iet-spr.2013.0015
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Analysis by synthesis spatial audio coding

Abstract: This study presents a novel spatial audio coding (SAC) technique, called analysis by synthesis SAC (AbS-SAC), with a capability of minimising signal distortion introduced during the encoding processes. The reverse one-to-two (R-OTT), a module applied in the MPEG Surround to down-mix two channels as a single channel, is first configured as a closed-loop system. This closed-loop module offers a capability to reduce the quantisation errors of the spatial parameters, leading to an improved quality of the synthesis… Show more

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Cited by 12 publications
(7 citation statements)
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“…Proses downmixing audio multikanal 22.2 dilakukan dengan metode sinyal audio masukan 22 kanal diproses pada block downmix yang berisikan encoding block serta dikonversi jadi satu audio mono dengan spatial parameternya yang berbentuk CLD, ICC dan suatu sinyal residu [15]. Spatial parameter yang diekstrak ini nanti akan berperan sebagai parameter buat merekonstruksi kembali sinyal mono dari hasil proses downmix jadi audio multikanal kembali [20]. Proses downmixing pada audio multikanal 22.2 bisa dilihat pada gambar 1.…”
Section: Metode Penelitianunclassified
“…Proses downmixing audio multikanal 22.2 dilakukan dengan metode sinyal audio masukan 22 kanal diproses pada block downmix yang berisikan encoding block serta dikonversi jadi satu audio mono dengan spatial parameternya yang berbentuk CLD, ICC dan suatu sinyal residu [15]. Spatial parameter yang diekstrak ini nanti akan berperan sebagai parameter buat merekonstruksi kembali sinyal mono dari hasil proses downmix jadi audio multikanal kembali [20]. Proses downmixing pada audio multikanal 22.2 bisa dilihat pada gambar 1.…”
Section: Metode Penelitianunclassified
“…Analysis by Synthesis (AbS) concept [66][67][68][69][70][71], which has been widely applied in many ISSN: 2302 -2949…”
Section: Improving Reconstructed Audiomentioning
confidence: 99%
“…Based on MPEG Surround, a closed-loop spatial audio coding technique [18], [19] has been proposed and its performance, tested objectively and subjectively, has been reported to show the advantages of the closed-loop system in order to improve the quality of multichannel audio reproduction. However, it is not clear yet how the effect of different spatial parameter quantisers on the performance of the closed-loop codec.…”
Section: Introductionmentioning
confidence: 99%