ISO/MPEG subjective tests on multichannel audio coding systems: design and methodology

Fuchs, Harald; Hoeg, Wolfgang; Meares, David

doi:10.1049/cp:19940744

Cited by 2 publications

(4 citation statements)

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“…Our work quantifies how much the emotional characteristics of instruments such as the saxophone have been changed by MP3 compression and gives an indication of whether these changes are acceptable for particular bit rates and instruments. We believe that in addition to subjective quality evaluations [31,[37][38][39]56] and discrimination measures [40,41], changes in emotional characteristics can provide an additional metric for audio codec evaluation. Other than subjectively evaluating the quality loss of compressed sounds, or the changes in the timbre space, our study gives another perspective in evaluating the effect of lossy audio compression by considering the changes in the space of emotional characteristics.…”

Section: Discussionmentioning

confidence: 99%

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The Effects of MP3 Compression on Perceived Emotional Characteristics in Musical Instruments

Mo¹,

Choi²,

Lee³

et al. 2016

J. Audio Eng. Soc.

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Musical instrument sounds have distinct timbral and emotional characteristics, and when audio processes are applied to them their timbral and emotional characteristics are changed. This paper investigates the effects of MP3 compression on the emotional characteristics of eight sustained instrument sounds using a listening test. We compared the compressed sounds pairwise over ten emotional categories at several bit rates. The results showed that MP3 compression strengthened neutral and negative emotional characteristics such as Mysterious, Shy, Scary, and Sad; and weakened positive emotional characteristics such as Happy, Heroic, Romantic, Comic, and Calm. Interestingly, Angry was relatively unaffected by MP3 compression. Probably, the background "growl" artifacts added by MP3 compression decreased positive emotional characteristics and increased negative characteristics such as Mysterious and Scary. For instruments, MP3 compression effected some instruments more and others less. The trumpet was the most effected and the horn by far the least.

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Section: Discussionmentioning

confidence: 99%

“…MP3 compression is such an example and is often used to speed up downloads and streaming by discarding less audible parts of the sound due to simultaneous and temporal masking [31,32]. But due to the lossy nature of MP3 compression, the sound is altered.…”

Section: Introductionmentioning

confidence: 99%

The Effects of MP3 Compression on Perceived Emotional Characteristics in Musical Instruments

Mo¹,

Choi²,

Lee³

et al. 2016

J. Audio Eng. Soc.

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show abstract

“…Audio post-processes that have nothing to do with the music, instruments, or recording environment can also change the sound, its color, and emotional characteristics [39]. MP3 compression is such an example, and is often used to speed up downloads and streaming by discarding less audible parts of the sound due to simultaneous and temporal masking [40,41]. But due to the lossy nature of MP3 compression, the sound is altered.…”

Section: Mp3 Compressionmentioning

confidence: 99%

“…We believe that in addition to subjective quality evaluations [48,40,46,47,82] and discrimination measures [49,50], changes in emotional characteristics can provide an additional metric for audio codec evaluation. Other than subjectively evaluating the quality loss of compressed sounds, or the changes in the timbre space, our study gives another perspective in evaluating the effect of lossy audio compression by considering the changes in the space of emotional characteristics.…”

Section: Mp3 Compressionmentioning

confidence: 99%

The effects of audio processing on the perceived emotional characteristics of musical instrument sounds

Mo¹

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First of all, I would like to express my sincere gratitude to my thesis supervisor, Professor Andrew Horner, for his kindly guidance and advice in my long journey of postgraduate studies. He always encourages me to express myself freely and tackle those tough research questions with confidence. He has also taught me how to conduct my research scientifically and systematically, as well as how to present my works clearly.Thanks for Professor Horner's supervision and guidance, my writing and presentation skills have been improved quite a lot throughout my PhD studies.I would like to sincerely thank members of my PhD thesis examination committee, Professor Raymond Wong, Professor Xiaojuan Ma, and Professor Richard So, who also served as the committee members of my PhD qualifying examination and thesis proposal examination. I would also like to express my gratitude to Professor Ricky Kwok for accepting to be my external committee member, and Professor Ajay Joneja for being the chairperson of my PhD thesis examination. I appreciate their valuable time and comment on my PhD thesis which makes my PhD thesis more complete.In addition, I would like to thank the people in our research group: Chuck-jee Chau, Bin Wu, Hong Yu, Jennifer Chan, Bing Yen Chang, along with all the subjects of my listening tests, for the help of my research in these years. It would not be successful without your help and support. Many thanks to my colleagues Nicko Shek, Cecia

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ISO/MPEG subjective tests on multichannel audio coding systems: design and methodology

Cited by 2 publications

References 0 publications

The Effects of MP3 Compression on Perceived Emotional Characteristics in Musical Instruments

The Effects of MP3 Compression on Perceived Emotional Characteristics in Musical Instruments

The effects of audio processing on the perceived emotional characteristics of musical instrument sounds

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