Projekte pro Jahr
Abstract
Given the high degree of segmental reduction in conversational speech, a large number of words become homophoneous that in read speech are not. For instance, the tokens considered in this study "ah, ach, auch, eine and "er" may all be reduced to [a] in conversational Austrian German. Homophones pose a serious problem for automatic speech recognition (ASR), where homophone disambiguation is typically solved using lexical context. In contrast, we propose two approaches to disambiguate homophones on the basis of prosodic and spectral features. First, we build a Random Forest classifier with a large set of acoustic features, which reaches good performance given the small data size, and allows us to gain insight into how these homophones are distinct with respect to phonetic detail. Since for the extraction of the features annotations are required, this approach would not be practical for the integration into an ASR system. We thus explored a second, convolutional neural network (CNN) based approach. The performance of this approach is on par with the one based on Random Forest, and the results indicate a high potential of this approach to facilitate homophone disambiguation when combined with a stochastic language model as part of an ASR system
Originalsprache | englisch |
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Titel | Proceedings of the Annual Conference of the International Speech Communication Association, INTERSPEECH |
Seiten | 3198-3202 |
Seitenumfang | 5 |
Band | 2022-September |
DOIs | |
Publikationsstatus | Veröffentlicht - 2022 |
Veranstaltung | 23rd Annual Conference of the International Speech Communication Association: INTERSPEECH 2022 - Incheon, Südkorea Dauer: 18 Sept. 2022 → 22 Sept. 2022 https://interspeech2022.org |
Publikationsreihe
Name | Proceedings of the Annual Conference of the International Speech Communication Association, INTERSPEECH |
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ISSN (Print) | 2308-457X |
Konferenz
Konferenz | 23rd Annual Conference of the International Speech Communication Association |
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Kurztitel | INTERSPEECH 2022 |
Land/Gebiet | Südkorea |
Ort | Incheon |
Zeitraum | 18/09/22 → 22/09/22 |
Internetadresse |
ASJC Scopus subject areas
- Software
- Signalverarbeitung
- Sprache und Linguistik
- Human-computer interaction
- Modellierung und Simulation
Projekte
- 1 Abgeschlossen
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FWF - CLCS_2 - Cross-layer Prosodie Modelle für Spontansprache
1/10/18 → 30/11/21
Projekt: Forschungsprojekt