Forensic comparison of voices: a preliminary study on the differences between a natural voice and an artificial voice for judicial investigation
This study presents an approach to the phonetic similarities and differences between a natural voice and an artificial voice, which is why it seeks to: (a) provide an analysis that serves as a precedent for judicial cases of voice cloning by artificial intelligence (AI) and (b) expose the importance...
| Autores: | , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2024 |
| País: | Perú |
| Institución: | Poder Judicial del Perú |
| Repositorio: | Revistas - Poder Judicial del Perú |
| Idioma: | español |
| OAI Identifier: | oai:revistas.pj.gob.pe:article/881 |
| Acceso en línea: | https://revistas.pj.gob.pe/revista/index.php/ropj/article/view/881 |
| Access Level: | acceso abierto |
| Palabra clave: | phonetic analysis artificial voice text to speech converter forensic linguistics criminalistics análisis fonético voz artificial convertidor de texto en habla lingüística forense criminalística análise fonética conversor de texto para fala linguística forense |
| Sumario: | This study presents an approach to the phonetic similarities and differences between a natural voice and an artificial voice, which is why it seeks to: (a) provide an analysis that serves as a precedent for judicial cases of voice cloning by artificial intelligence (AI) and (b) expose the importance of linguistics as a source of scientific evidence for the judicial system. Thus, the voice of the Argentine narrator Mariano Closs and his artificial counterpart created in FakeYou (text-to-speech converter) have been analyzed using the combined method that integrates the use of automatic voice analysis programs (Forensia and SIS II) and the phonetic analysis. The automatic programs showed results of high convergence between the natural voice and the artificial voice. However, in the phonetic analysis, differences were observed in the production of certain sounds, in intonation, and there were phonetic processes present in a sample. Thus, despite the similarity of the samples on the biometric level, the artificial voice of the narrator Mariano Closs is still not completely similar to his natural counterpart on the phonetic level. |
|---|