Abstract
The goal of computational speech segregation systems is to automatically segregate a target speaker from interfering maskers. Typically, these systems include a feature extraction stage in the front-end and a classification stage in the back-end. A spectrotemporal integration strategy can be applied in either the frontend, using the so-called delta features, or in the back-end, using a second classifier that exploits the posterior probability of speech from the first classifier across a spectro-temporal window. This study systematically analyzes the influence of such stages on segregation performance, the error distributions and intelligibility predictions. Results indicated that it could be problematic to exploit context in the back-end, even though such a spectro-temporal integration stage improves the segregation performance. Also, the results emphasized the potential need of a single metric that comprehensively predicts computational segregation performance and correlates well with intelligibility. The outcome of this study could help to identify the most effective spectro-temporal integration strategy for computational segregation systems.
Original language | English |
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Title of host publication | Proceedings of Interspeech 2016 |
Number of pages | 5 |
Publisher | International Speech Communication Association |
Publication date | 2016 |
DOIs | |
Publication status | Published - 2016 |
Event | Interspeech 2016 - Hyatt Regency, San Francisco, Ca, United States Duration: 8 Sep 2016 → 12 Sep 2016 |
Conference
Conference | Interspeech 2016 |
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Location | Hyatt Regency |
Country/Territory | United States |
City | San Francisco, Ca |
Period | 08/09/2016 → 12/09/2016 |
Keywords
- Computational speech segregation
- Binary masks
- Supervised learning
- Spectro-temporal integration