Sample provided by Auditec™. A full version of the recording can be downloaded here: https://auditec.com/2015/09/02/pal-lists/.

“The PAL (acronym for Psycho-Acoustic Labratory) Lists 1-4 were recorded and spoken by James Jerger. This recording represents one of the earliest attempts to develop a test of communication ability. Each word list contains 50 words.“

Picture: Ira Hirsh, The Measurement of Hearing (New York: McGraw Hill, 1952), Appendix B.