The Nationwide Speech Project (NSP) corpus is a corpus of spoken language containing recordings of young adult male and female talkers from six regions of the United States. Speech samples include isolated words, sentences, passages, and interview speech. The purpose of the Nationwide Speech Project was to develop a corpus of spoken language that can be used in acoustic and perceptual studies of regional dialect variation in the United States.

If you are interested in obtaining speech samples from the NSP corpus for use in research or pedagogical projects, please contact Cynthia Clopper. Some of the corpus materials are also available through the Linguistic Data Consortium. The NSP corpus materials are not available for commercial purposes.

The collection of the NSP corpus was supported by NIH NIDCD T32 Training Grant DC00012 and NIH NIDCD R01 Research Grant DC00111 to Indiana University.