BS EN ISO 9921:2003
Current
The latest, up-to-date edition.
Ergonomics. Assessment of speech communication
Hardcopy , PDF
English
29-09-2005
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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
Specifies the requirements for the performance of speech communication for verbal alert and danger signals, information messages, and speech communication in general.
| Committee |
PH/9
|
| DevelopmentNote |
Supersedes 01/564713 DC. (01/2004) Supersedes BS ISO 9921-1. (12/2005)
|
| DocumentType |
Standard
|
| Pages |
40
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| UNI EN ISO 9921 : 2004 | Identical |
| NEN EN ISO 9921 : 2003 | Identical |
| NS EN ISO 9921 : 1ED 2003 | Identical |
| SN EN ISO 9921 : 2003 | Identical |
| UNE-EN ISO 9921:2004 | Identical |
| NF EN ISO 9921 : 2004 | Identical |
| I.S. EN ISO 9921:2003 | Identical |
| NBN EN ISO 9921 : 2003 | Identical |
| EN ISO 9921:2003 | Identical |
| ISO 9921:2003 | Identical |
| DIN EN ISO 9921:2004-02 | Identical |
| IEC 60849:1998 | Sound systems for emergency purposes |
| BS 7827:1996 | Code of practice for designing, specifying, maintaining and operating emergency sound systems at sports venues |
| ISO/TR 4870:1991 | Acoustics The construction and calibration of speech intelligibility tests |
| ISO 7731:2003 | Ergonomics Danger signals for public and work areas Auditory danger signals |
| ISO 11429:1996 | Ergonomics — System of auditory and visual danger and information signals |
| IEC 60268-16:2011 | Sound system equipment - Part 16: Objective rating of speech intelligibility by speech transmission index |
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