Describes: a) the methods for the construction of speech tests for the measurement of the intelligibility of transmitted speech; b) a reference communication system and the necessary test conditions.
Status: WithdrawnPublication date: 1991-12
Edition: 1Number of pages: 22
Technical Committee: ISO/TC 43/SC 1 Noise
- ICS :
- 13.140 Noise with respect to human beings
ISO/TR 4870:1991Stage: 95.99
Got a question?
Check out our FAQs
+41 22 749 08 88
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)
Keep up to date with ISO
Sign up to our newsletter for the latest news, views and product information.