IEEE 823-1989

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IEEE Standard Methodologies for Specifying Voicegrade Channel Transmission Parameters and Evaluating Connection Transmission Performance for Speech Telephony

Published By	Publication Date	Number of Pages
IEEE	1989	72

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Description

New IEEE Standard – Inactive-Withdrawn. Withdrawn Standard. Withdrawn Date: Dec 13, 1994. No longer endorsed by the IEEE. This standard provides network planners with the methodology and models for specifying the transmission performance of voicegrade communications channels, calculating the transmission performance of voicegrade connections made up of one channel, or of two or more voicegrade channels connected in tandem, calculating the resulting speech transmission performance, and determining the grade of service of a complete voice connection, including the terminals (telephone sets), and evaluating the relative transmission performance of alternative speech connections.

PDF Catalog

PDF Pages	PDF Title
11	1 Introduction
12	2 Purpose Scope and Application 2.1 Purpose 2.2 Scope 2.3 Application
13	for Speech Telephony
14	Definitions Illustration of Some Definitions
15	4 Summary of Standards 4.1 Introduction Specification of Channel Parameters
16	Summary of Procedure
18	Calculation of Complete Connection Parameters 4.5 Performance Evaluation 5.1 General
19	5.2 Loss 5.2.1 Effect of Connection Loss on Performance 5.2.2 Definition Method and Units of Measurement 5.2.4 Method of Specification of Channel Loss 5.2.5 Method for Calculating Connection Loss
20	5.3 Idle-Circuit Noise 5.3.1 Effect of Idle-Circuit Noise on Performance 5.3.2 Definition Method and Units of Measurement
21	5.3.4 Method of Specification of Channel Idle-Circuit Noise 5.3.5 Method for Calculating Connection Idle-Circuit Noise Connection Loss Example
22	5.4 Quantization Noise Effect of Quantization Noise on Performance Method and Units of Measurement 5.4.4 Method of Specification of Channel Quantization Noise
23	5.4.5 Methodology for Calculating Connection Quantization Noise Connection Idle-Circuit Noise Example
24	Talker Echo Path Loss 5.5.1 Effect of Talker Echo Path Loss on Performance 5.5.2 Definitions Method and Units of Measurements Connection Quantization Noise Example
25	5.5.4 Method of Specification of Channel Talker Echo Path Loss
26	for a Channel
27	Method of Determining Dominant Channel Talker Echo Paths
28	5.5.5 Method for Calculating Connection Talker Echo Path Loss
29	Determination of Dominant Connection Talker Echo Paths
30	Talker Echo Path Delay Performance 5.6.2 Definitions Method and Units of Measurement 5.6.4 Method of Specification of Channel Talker Echo Path Delay
31	5.6.5 Method for Calculating Connection Talker Echo Path Delay 6 Connection Performance for Speech Transmission 6.1 Introduction
32	Connection 6.2.1 General 6.2.2 Loudness Loss
33	6.2.3 Equivalent Noise 6.2.4 Talker Echo
34	Illustration of Talker Echo in a Complete Connection
35	Methodology for the Evaluation of the Performance of a Complete Connection 6.3.1 General 6.3.2 Performance Comparison Method
36	Loudness Loss-Equivalent Noise Performance Classes
38	6.3.3 Performance Class Descriptions Talker Echo Performance Classes for Delays > 100 ms < 1200 ms
39	7 References
41	Application Examples
42	Off-Premises Station (OPS) Channel Specification
44	Example of a Complete Connection
46	Loss-Noise Performance of Example Complete Connection
48	Example of Alternative Connection Arrangements Table A1 Alternative Arrangements
49	Connection Parameters
56	Application of Echo Control Devices
57	Illustrative Example of TEPL and Equal Level TEPL
60	Receiving Systems
61	General Case for TOLR’ and ROLR’
62	TOLR and ROLR According to EIA 470-A (1987) [Cl] and IEEE Std 661-1979 [C21
63	Table C1 Estimated Values TOLR’ and ROLR’ Table C2 Loudness Ratings for 500-Type Set with 26-Gauge Subscriber Lines
64	Table C3 1004 Hz 900 R Insertion Loss of 26-Gauge Cable Table C4 Loudness Rating Distribution for 500-Type Set Model on 1973 Customer Loops Table C5 Loudness Ratings for 500-Type Set Model on Short Loops
65	Bridge Bridge
67	Criteria and Methodology Used in Defining the Performance Classes
68	CCITT Opinion Data D31, [D41
70	Classification Table D2 Speech Performance Classes of Voicegrade Connections

Additional information

Standard Title	IEEE Standard Methodologies for Specifying Voicegrade Channel Transmission Parameters and Evaluating Connection Transmission Performance for Speech Telephony
Published Code	IEEE
Publication Date	1989
Pages Count	72

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