I.S. EN ISO 9921:2003
Current
The latest, up-to-date edition.
ERGONOMICS - ASSESSMENT OF SPEECH COMMUNICATION
Hardcopy , PDF
English
01-01-2003
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Descriptions of speech communications
4.1 General
4.2 Speaker
4.3 Transmission channel
4.4 Listener
5 Performance of speech communications
5.1 General
5.2 Alert and warning situations
5.3 Person-to-person communications
5.4 Public address in public areas
5.5 Personal communication systems
5.6 Summary of recommended minimum performance
6 Assessment and prediction
6.1 General
6.2 Subjective assessment methods
6.3 Objective assessment and prediction methods
Annex A (normative) Speaker and listener characteristics
Annex B (informative) Subjective speech-intelligibility
tests
Annex C (informative) Speech transmission index, STI
Annex D (informative) Overview of the means of
communication and related parameters
Annex E (normative) Speech interference level, SIL
Annex F (informative) Intelligibility ratings for
speech communications
Annex G (normative) Definition of symbols
Annex H (informative) Examples of applications of
predictive intelligibility methods
Bibliography
Gives the requirements for the performance of speech communication for verbal alert and danger signals, information messages, and speech communication in general.
| DocumentType |
Standard
|
| Pages |
40
|
| PublisherName |
National Standards Authority of Ireland
|
| Status |
Current
|
| Standards | Relationship |
| UNI EN ISO 9921 : 2004 | Identical |
| ISO 9921:2003 | Identical |
| BS EN ISO 9921:2003 | Identical |
| UNE-EN ISO 9921:2004 | Identical |
| EN ISO 9921:2003 | Identical |
| DIN EN ISO 9921:2004-02 | Identical |
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