Investigation of Forensically Significant Changes of Acoustic Features with Regard to Code-Switching (on the Basis of Russian and German)
| Autor: | Tatiana Platonova, Anna Smolina |
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| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | Speech and Computer ISBN: 9783319019307 SPECOM |
| Popis: | The investigation of the phenomenon of code-switching presents great scientific interest nowadays. An explosive development of info-communication technologies and the growth of the international crime made it crucial to create multilingual systems, capable of speaker identification with regard to code-switching. That task is obviously impossible without a thorough study of speaker identification and code-switching on the basis of different languages. The paper focuses on the investigation of changes of the speaker's specific speech features under the conditions of switching from the native language to a foreign one. The conducted experiment was based on the material in Russian and German languages and included two types of analysis: acoustic analysis and perceptual analysis. The results of the experiment testify to the fact that the situation of code-switching has an impact on certain speech features. For instance, the mean fundamental frequency tends to decrease, speech melody becomes uneven, speech tempo slows down, duration of pauses increases, the articulation becomes tenser and distinct. At the same time it was found out that some characteristics of the speaker's voice were not subjected to any changes. |
| Databáze: | OpenAIRE |
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