Phonetics Laboratory

An integrated facility provides for research in phonetics as well as in psycholinguistics. The Phonetics Laboratory has a Gateway 200mHz PC with direct DAT capability with 7 gigabytes of memory used as a dedicated speech system for speech acoustic analysis, speech synthesis, and editing of speech. The interactive system for acoustic analysis, developed for use at Brown University, allows for digital spectrograms as well as dft, LPC, and bark analyses conducted over different size windows of analysis and different time frames. The same system may be used for editing and preparing auditory stimuli to be used in psycholinguistics experiments such as lexical decision tasks or tasks exploring on-line sentence processing. A Dell PC is used to generate psychometric tests as well as psycholinguistic experiments. It automatically scores for reaction-time and errors. Subjects are run in a separate testing room which has four testing booths for on-line testing and which can be set up for either auditory or visual stimulus presentation. PCs and PowerMacintoshes 7500/100 are available in the lab for statistical analyses, graphics, and manuscript preparation. All machines are ethernetted together and to the department's Novell server for data storage and retrieval. The lab is also connected to Brown's Internet. Laptop computers with the same software capabilities are used for testing brain-injured patients off-site.

 

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