M00045022
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SPEECH PROCESSING, TRANSMISSION AND QUALITY ASPECT (STQ) - GUIDANCE ON WRITING SPECIFICATIONS AND TESTS FOR NON-LINEAR AND TIME VARIANT TELEPHONY TERMINALS
European Telecommunications Standards Institute
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Availability date: 11/06/2021
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Foreword
Introduction
1 Scope
2 References
3 Definitions and abbreviations
3.1 Definitions
3.2 Abbreviations
4 Derivation of requirement and selection of test method
4.1 General Principles
4.2 Basis for Requirements
4.3 Guidelines for Test Procedure Specification
5 Descriptions of terminals considered as systems
5.1 Classification and Coverage of terminals
5.2 Description of a SPM as a subdivided system
5.3 Black-box approach or use of prior knowledge
5.4 Detector Types
6 Generic Signal Processing Method
6.1 Commented template
Annex A (informative): Examples of SPM descriptions
A.1 Frequency Multiplication
A.2 Centre Clipping
A.3 Automatic Gain Control (AGC)
History
The aim is to provide principle descriptions for speech transmission characteristics and form a basis, making users of this reportable, to devise specific suitable objectivity test methods for characterizing speech transmission performance. The emphasis will be on non-linear and/or time variant handset telephony terminals.
Published | |
Document Type | Standard |
Status | Current |
Publisher | European Telecommunications Standards Institute |
Pages | |
ISBN | |
Committee | STQ |