Blind speaker identification for audio forensic purposes
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| Formato: | Artículo científico |
| Lenguaje: | en |
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Universidad Nacional de Colombia
2017
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| _version_ | 1876470371872407552 |
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| author | Dora María Ballesteros Larrota |
| author_facet | Dora María Ballesteros Larrota |
| contents | Blind speaker identification for audio forensic purposes Dora María Ballesteros Larrota Diego Renza Torres Steven Andrés Camacho Vargas Ingeniería cochleagram fuzzy logic true acceptance false acceptance Speaker identification This paper presents a blind method for speaker identification for audio forensics purposes. It is based on a decision system with fuzzy rules and works with the correlation between the cochleagrams of the audio proof and of the audios of the suspects. Our proposed system can give a null output, a unique selected suspect or a group of identified suspects. According to several tests, our Overall Accuracy (OA) is 0.97 with agreement (κappa index, κ) of 0.75. Additionally, unlike typical systems in which a low false acceptance (FP) implies high false rejection (FN), our system can work simultaneously with FN and FP equal to zero (i.e. OA=1; κ=1). Finally, our system works with blind identification, it means, without preliminary knowledge of the audio recordings or a training step; an imperative characteristic for audio forensics. 2017 artículo científico 0012-7353 https://www.redalyc.org/articulo.oa?id=49650911035 https://www.redalyc.org/journal/496/49650911035/ https://www.redalyc.org/journal/496/49650911035/html/ https://www.redalyc.org/journal/496/49650911035/49650911035.epub https://www.redalyc.org/journal/496/49650911035/movil 10.15446/dyna.v84n201.60407 en http://www.redalyc.org/revista.oa?id=496 Dyna application/pdf Universidad Nacional de Colombia Dyna (Colombia) Num.201 Vol.84 |
| format | Artículo científico |
| id | redalyc_49650911035 |
| institution | Redalyc |
| language | en |
| publishDate | 2017 |
| publisher | Universidad Nacional de Colombia |
| spellingShingle | Blind speaker identification for audio forensic purposes Dora María Ballesteros Larrota Ingeniería cochleagram fuzzy logic true acceptance false acceptance Speaker identification Blind speaker identification for audio forensic purposes Dora María Ballesteros Larrota Diego Renza Torres Steven Andrés Camacho Vargas Ingeniería cochleagram fuzzy logic true acceptance false acceptance Speaker identification This paper presents a blind method for speaker identification for audio forensics purposes. It is based on a decision system with fuzzy rules and works with the correlation between the cochleagrams of the audio proof and of the audios of the suspects. Our proposed system can give a null output, a unique selected suspect or a group of identified suspects. According to several tests, our Overall Accuracy (OA) is 0.97 with agreement (κappa index, κ) of 0.75. Additionally, unlike typical systems in which a low false acceptance (FP) implies high false rejection (FN), our system can work simultaneously with FN and FP equal to zero (i.e. OA=1; κ=1). Finally, our system works with blind identification, it means, without preliminary knowledge of the audio recordings or a training step; an imperative characteristic for audio forensics. 2017 artículo científico 0012-7353 https://www.redalyc.org/articulo.oa?id=49650911035 https://www.redalyc.org/journal/496/49650911035/ https://www.redalyc.org/journal/496/49650911035/html/ https://www.redalyc.org/journal/496/49650911035/49650911035.epub https://www.redalyc.org/journal/496/49650911035/movil 10.15446/dyna.v84n201.60407 en http://www.redalyc.org/revista.oa?id=496 Dyna application/pdf Universidad Nacional de Colombia Dyna (Colombia) Num.201 Vol.84 |
| title | Blind speaker identification for audio forensic purposes |
| topic | Ingeniería cochleagram fuzzy logic true acceptance false acceptance Speaker identification |
| url | https://www.redalyc.org/articulo.oa?id=49650911035 https://www.redalyc.org/journal/496/49650911035/ https://www.redalyc.org/journal/496/49650911035/html/ https://www.redalyc.org/journal/496/49650911035/49650911035.epub https://www.redalyc.org/journal/496/49650911035/movil |