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ERIC Number: ED356506
Record Type: Non-Journal
Publication Date: 1992-Oct
Pages: 5
Abstractor: N/A
Reference Count: N/A
Analysis of False Starts in Spontaneous Speech.
O'Shaughnessy, Douglas
A primary difference between spontaneous speech and read speech concerns the use of false starts, where a speaker interrupts the flow of speech to restart his or her utterance. A study examined the acoustic aspects of such restarts in a widely-used speech database, examining approximately 1000 utterances, about 10% of which contained a restart. Identifying the type of restart in such cases could improve the performance of an automatic speech recognizer, by eliminating from consideration some hypotheses based on spectral analysis. Results showed that simple restarts (those without inserted or substituted words) could be distinguished acoustically, via an analysis of duration, FO (fundamental frequency) and spectral detail in the neighborhood of a pause. This would allow automatic identification of such restarts with an accuracy exceeding 80%, while keeping false alarms to below 10%. (Author/SR)
Publication Type: Reports - Research; Speeches/Meeting Papers
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A