This standard is a revision of ANSI S3.2-1989 (R 1999) American National Standard Method for
Measuring the Intelligibility of Speech over Communication Systems. The standard provides three
alternative sets of lists of English words to be spoken by trained talkers over the speech
communication system to be evaluated. The selection of the particular set of word lists depends upon
the purpose and constraints of the test situation. Trained listeners record the words they hear. The
fraction of the words they identify correctly is the measure of the intelligibility of speech over the
system. The system may consist of the air and the room or outdoors in face-to-face communications;
the equipment and environments used in telephony, public address systems, or ordinary radio; or
complex systems of environment, equipment, and air, wire, fiber, radio, and water paths used in some
military, space, remote, or emergency communications. The standard specifies test materials that
have been thoroughly validated. The standard also specifies methods for selecting and training the
talkers and listeners; for designing, controlling, and reporting the test conditions; and for analyzing and
reporting the test results.
| ANSI : | ANSI Approved |
| File Size : | 1
file
, 370 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 34 |
| Published : | 05/13/2009 |
