{"title":"基于交互式对象的音频编码系统中的感知响度补偿","authors":"Jouni Paulus","doi":"10.1109/EUSIPCO.2015.7362449","DOIUrl":null,"url":null,"abstract":"Changing the rendering through interactivity in object-based audio coding may change the overall signal loudness. This paper proposes a method for estimating the change in the overall loudness using loudness information of the partial mixes and the rendering description. The method has been designed for a dialogue enhancement application scenario. The results of the method are compared with reference values from measurements, and the results match well with the mean absolute error of 0.11 LU. A subjective listening test is conducted for studying the amount of amplification applied by the test participants on a probe signal simulating the result of an interactive rendering when comparing it with a reference signal of the default mix. The average level adjustment reflects the change in the signal loudness through the modification.","PeriodicalId":401040,"journal":{"name":"2015 23rd European Signal Processing Conference (EUSIPCO)","volume":"604 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2015-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Perceptual loudness compensation in interactive object-based audio coding systems\",\"authors\":\"Jouni Paulus\",\"doi\":\"10.1109/EUSIPCO.2015.7362449\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Changing the rendering through interactivity in object-based audio coding may change the overall signal loudness. This paper proposes a method for estimating the change in the overall loudness using loudness information of the partial mixes and the rendering description. The method has been designed for a dialogue enhancement application scenario. The results of the method are compared with reference values from measurements, and the results match well with the mean absolute error of 0.11 LU. A subjective listening test is conducted for studying the amount of amplification applied by the test participants on a probe signal simulating the result of an interactive rendering when comparing it with a reference signal of the default mix. The average level adjustment reflects the change in the signal loudness through the modification.\",\"PeriodicalId\":401040,\"journal\":{\"name\":\"2015 23rd European Signal Processing Conference (EUSIPCO)\",\"volume\":\"604 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2015-12-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2015 23rd European Signal Processing Conference (EUSIPCO)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/EUSIPCO.2015.7362449\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2015 23rd European Signal Processing Conference (EUSIPCO)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/EUSIPCO.2015.7362449","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Perceptual loudness compensation in interactive object-based audio coding systems
Changing the rendering through interactivity in object-based audio coding may change the overall signal loudness. This paper proposes a method for estimating the change in the overall loudness using loudness information of the partial mixes and the rendering description. The method has been designed for a dialogue enhancement application scenario. The results of the method are compared with reference values from measurements, and the results match well with the mean absolute error of 0.11 LU. A subjective listening test is conducted for studying the amount of amplification applied by the test participants on a probe signal simulating the result of an interactive rendering when comparing it with a reference signal of the default mix. The average level adjustment reflects the change in the signal loudness through the modification.