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I.S. EN IEC 60268-16:2020

Current
Current

The latest, up-to-date edition.

Sound system equipment - Part 16: Objective rating of speech intelligibility by speech transmission index (IEC 60268-16:2020)
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-12-2020

Preview

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.

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Description of the STI model
5 Direct method of measuring STI – User guidance
6 Indirect method of measuring STI (impulse response) – User guidance
7 Limitations of the STI model
8 Measurement procedures, post-processing of data and applications
9 Use of the STI as a design prediction tool
Annex A (informative) The basis of the STI concept
Annex B (normative) STIPA method
Annex C (normative) Verification of STI measuring devices
Annex D (informative) Use of STI measuring devices
Annex E (informative) Qualification of the STI and relationships with other speech
intelligibility measures
Annex F (informative) Nominal qualification bands for STI
Annex G (informative) Examples of STI qualification bands and typical applications
Annex H (informative) Non-native listeners
Annex I (informative) Effect of age-related hearing loss and hearing impairment on
speech intelligibility
Annex J (normative) Setting and adjustment of STI test signal level
Annex K (informative) Example test report sheet for STI measurements
Annex L (normative) Prediction of the STI using statistical methods..
Annex M (informative) Adjustments to STI data to simulate alternative ambient noise
spectra and different speech levels
Annex N (informative) Other methods of determining speech intelligibility
Annex O (informative) Alternative direct methods for measuring Full STI
Annex P (normative) Information to be provided by manufacturers.
Annex Q (informative) Effect of uncertainties of selected parameters on STI
Bibliography

This part of IEC 60268 defines the STI model, test signals, measurement and prediction methods.

Committee
TC 100
DocumentType
Standard
ISBN
978-2-8322-8862-7
Pages
234
ProductNote
THIS STANDARD IS ALSO REFERES ANSI S3.5- The date of any NSAIprevious adoption may not matchthe date of its original CEN/CENELEC document.
PublisherName
National Standards Authority of Ireland
Status
Current
Supersedes

Standards Relationship
EN IEC 60268-16:2020 Identical
IEC 60268-16:2020 Identical

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