Acoustic echo cancellation techniques for far-end telephony speech recognition in barge-in situations
| Autor: | Seung Ho Choi, Se Jin Chang, Jong Han Joo, Youngsun Kim, Junghoon Lee |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Fluid Flow and Transfer Processes
Voice activity detection Computer Networks and Communications Computer science business.industry Health Toxicology and Mutagenesis Speech recognition BARGE Echo (computing) Detector General Engineering Measure (physics) Telecommunications network Adaptive filter Computer Science::Sound General Materials Science Telephony business Social Sciences (miscellaneous) |
| Zdroj: | Contemporary Engineering Sciences. 7:1113-1120 |
| ISSN: | 1314-7641 |
| DOI: | 10.12988/ces.2014.49139 |
| Popis: | In this paper, we present some techniques of acoustic echo cancellation for far-end (server-side) telephony speech recognition during barge-in situations. We develop a normalized least mean square algorithm for the adaptive filter of an echo canceller, and a double-talk detector for the online speech recognition services. In particular, we devise a voice activity detector for estimating the initial delay due to communication networks. In addition, we propose a hybrid method that uses the log-spectral distance measure, as well as the cross-correlation coeffi |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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