{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,18]],"date-time":"2026-03-18T14:12:14Z","timestamp":1773843134477,"version":"3.50.1"},"reference-count":37,"publisher":"MDPI AG","issue":"7","license":[{"start":{"date-parts":[[2021,6,28]],"date-time":"2021-06-28T00:00:00Z","timestamp":1624838400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100007834","name":"Natural Science Foundation of Ningbo","doi-asserted-by":"publisher","award":["202003N4089"],"award-info":[{"award-number":["202003N4089"]}],"id":[{"id":"10.13039\/100007834","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004731","name":"Natural Science Foundation of Zhejiang Province","doi-asserted-by":"publisher","award":["LY20F020010"],"award-info":[{"award-number":["LY20F020010"]}],"id":[{"id":"10.13039\/501100004731","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["61300055"],"award-info":[{"award-number":["61300055"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100017549","name":"Science and Technology Innovation 2025 Major Project of Ningbo","doi-asserted-by":"publisher","award":["2018B10010"],"award-info":[{"award-number":["2018B10010"]}],"id":[{"id":"10.13039\/501100017549","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100017549","name":"Science and Technology Innovation 2025 Major Project of Ningbo","doi-asserted-by":"publisher","award":["2019B10075"],"award-info":[{"award-number":["2019B10075"]}],"id":[{"id":"10.13039\/501100017549","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Information"],"abstract":"<jats:p>The number of channels is one of the important criteria in regard to digital audio quality. Generally, stereo audio with two channels can provide better perceptual quality than mono audio. To seek illegal commercial benefit, one might convert a mono audio system to stereo with fake quality. Identifying stereo-faking audio is a lesser-investigated audio forensic issue. In this paper, a stereo faking corpus is first presented, which is created using the Haas effect technique. Two identification algorithms for fake stereo audio are proposed. One is based on Mel-frequency cepstral coefficient features and support vector machines. The other is based on a specially designed five-layer convolutional neural network. The experimental results on two datasets with five different cut-off frequencies show that the proposed algorithm can effectively detect stereo-faking audio and has good robustness.<\/jats:p>","DOI":"10.3390\/info12070263","type":"journal-article","created":{"date-parts":[[2021,6,28]],"date-time":"2021-06-28T13:39:22Z","timestamp":1624887562000},"page":"263","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":46,"title":["Identification of Fake Stereo Audio Using SVM and CNN"],"prefix":"10.3390","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0056-3447","authenticated-orcid":false,"given":"Tianyun","family":"Liu","sequence":"first","affiliation":[{"name":"College of Information Science and Engineering, Ningbo University, Ningbo 315211, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5241-7276","authenticated-orcid":false,"given":"Diqun","family":"Yan","sequence":"additional","affiliation":[{"name":"College of Information Science and Engineering, Ningbo University, Ningbo 315211, China"}]},{"given":"Rangding","family":"Wang","sequence":"additional","affiliation":[{"name":"College of Information Science and Engineering, Ningbo University, Ningbo 315211, China"}]},{"given":"Nan","family":"Yan","sequence":"additional","affiliation":[{"name":"Ningbo Polytechnic, Ningbo 315800, China"}]},{"given":"Gang","family":"Chen","sequence":"additional","affiliation":[{"name":"Ningbo Polytechnic, Ningbo 315800, China"}]}],"member":"1968","published-online":{"date-parts":[[2021,6,28]]},"reference":[{"key":"ref_1","first-page":"252","article-title":"Research Progress on Key Technologies of Audio Forensics","volume":"31","author":"Yongqiang","year":"2016","journal-title":"J. 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