EG 202 396-2 : 1.1.1
Current
The latest, up-to-date edition.
SPEECH PROCESSING, TRANSMISSION AND QUALITY ASPECTS (STQ); SPEECH QUALITY PERFORMANCE IN THE PRESENCE OF BACKGROUND NOISE; PART 2: BACKGROUND NOISE TRANSMISSION - NETWORK SIMULATION - SUBJECTIVE TEST DATABASE AND RESULTS
Hardcopy , PDF
English
Intellectual Property Rights
Foreword
1 Scope
2 References
3 Abbreviations
4 Performance parameters
4.1 Overview
4.2 Performance key parameters
4.3 Parameter interaction and dependences
5 Description of codecs features
5.1 Speech coding algorithm
5.2 Bit-rate
5.3 Discontinuous Transmission (DTX)
5.4 Packet Loss Concealment (PLC)
5.5 Perceptual enhancement
6 Wideband codecs
6.1 Overview
6.2 Description of WideBand codecs
6.3 Wideband codec comparison
7 Background noise transmission simulation
7.1 General description
7.2 Speech sequences
7.3 Noisy conditions
7.4 Noisy signal processing
7.5 Network simulation
7.6 Network simulation database
8 Speech sample database description and subjective scores
production
8.1 Database description
8.2 Subjective scores collection
9 Application of the material produced
9.1 Contribution of terminals and networks
9.2 Development of objective methods
Annex A (informative): Detailed STF 294 subjective test results
Annex B (informative): Complementary information on the
practical subjective test procedures
B.1 "Headphones"
B.2 Listening Levels
B.3 Sample Shortening/Extraction
Annex C (informative): Instructions and Questions presented
to listeners during subjective tests
Annex D (informative): Bibliography
History
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.