ERIC Number: EJ823707
Record Type: Journal
Publication Date: 2008-Oct
Abstractor: As Provided
Reference Count: 0
Improving Accuracy in Detecting Acoustic Onsets
Duyck, Wouter; Anseel, Frederik; Szmalec, Arnaud; Mestdagh, Pascal; Tavernier, Antoine; Hartsuiker, Robert J.
Journal of Experimental Psychology: Human Perception and Performance, v34 n5 p1317-1326 Oct 2008
In current cognitive psychology, naming latencies are commonly measured by electronic voice keys that detect when sound exceeds a certain amplitude threshold. However, recent research (e.g., K. Rastle & M. H. Davis, 2002) has shown that these devices are particularly inaccurate in precisely detecting acoustic onsets. In this article, the authors discuss the various problems and solutions that have been put forward with respect to this issue and show that classical voice keys may trigger several tens of milliseconds later than acoustic onset. The authors argue that a solution to this problem may come from voice keys that use a combination of analogue and digital noise (nonspeech sound) detection. It is shown that the acoustic onsets detected by such a device are only a few milliseconds delayed and correlate highly (up to 0.99) with reaction time values obtained by visual waveform inspection.
American Psychological Association. Journals Department, 750 First Street NE, Washington, DC 20002-4242. Tel: 800-374-2721; Tel: 202-336-5510; Fax: 202-336-5502; e-mail: email@example.com; Web site: http://www.apa.org/publications
Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Authoring Institution: N/A