IEEE 661-1979
$73.67
IEEE Standard Method for Determining Objective Loudness Ratings of Telephone Connections
| Published By | Publication Date | Number of Pages |
| IEEE | 1979 | 20 |
New IEEE Standard – Inactive-Reserved. To describe a practical and reproducible method of determining the loudness ratings of telephone connections. Loudness ratings may be measured directly using appropriate test instruments and facilities, as specified in this standard, or may be computed using the amplitude-frequency characteristic of the connection measured in accordance with IEEE Std 269-1971. .
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 5 | 1 Introduction |
| 6 | 2 ScopeandPurpose Definitions 3.1 LoudnessRating 3.2 Reference System |
| 7 | 3.3 Objective Loudness Rating (OLR) 3.4 Voltage and Pressure Levels 3.5 Overall Objective Loudness Rating (OOLR) 3.6 Transmitting Objective Loudness Rating (TOLR) 3.7 Receiving Objective Loudness Rating (ROLR) 3.8 Sidetone Objective Loudness Rating (SOLR) 3.9 Electrical Objective Loudness Rating (EOLR) 3.10 Source/Load Impedance 3.11 LoudnessEquation |
| 8 | 4 References 5 Instrumental Method 5.1 General 5.2 Test Equipment |
| 10 | 5.3 Meamringsystem Fig 1 H-Pad Circuit |
| 11 | Fig 2 Sending End of Measuring System Fig 3 Receiving End of Measuring System |
| 13 | 5.4 Calibration 5.5 Testprocedure |
| 14 | 6 Computational Method |
| 15 | Fig 6 Graphical Loudness Computation Form |
| 16 | Example of Computation of Transmitting Objective Loudness Rating Example of Computation of Receiving Objective Loudness Rating |
| 17 | Appendix A Loudness Rating Method Fig A1 Computation of Speech Loudness |
| 19 | Appendix B Weighted Acoustic Source Signal aTalker |
| 20 | Appendix C Weighted Electrical Source Signal |
Related products
-
IEEE ANSI C37.1 1987
IEEE Standard Definition, Specification, and Analysis of Systems Used for Supervisory Control, Data Acquisition, and…
-
IEEE 8802-11-2022
ISO/IEC/IEEE – International Standard – Telecommunications and information exchange between systems–Specific requirements for local and…
-
IEEE 802.1Q-2018(Redline)
IEEE Standard for Local and Metropolitan Area Networks—Bridges and Bridged Networks (Redline) Published By Publication…
-
IEEE 1450.6.1 2009
IEEE Standard for Describing On-Chip Scan Compression Published By Publication Date Number of Pages IEEE…
-
ASME NQA.TR 2020
ASME NQA.TR-2020: Evolution of Quality Assurance Principles and Requirements in the U.S. Nuclear Industry Published…
-
IEEE 1450.6 2005
IEEE Standard Test Interface Language (STIL) for Digital Test Vector Data-Core Test Language (CTL) Published…
-
IEEE 802.3-2022(Redline)
IEEE Standard for Ethernet (Redline) Published By Publication Date Number of Pages IEEE 2022 7025
-
IEEE 802.11-1999
IEEE Standard for Information Technology – Telecommunications and information exchange between systems – Local and…
-
IEEE 661 1979
IEEE Standard Method for Determining Objective Loudness Ratings of Telephone Connections Published By Publication Date…
-
IEEE 802.3-2022(Redline)
IEEE Standard for Ethernet (Redline) Published By Publication Date Number of Pages IEEE 2022
-
IEEE 802.11-1999
IEEE Standard for Information Technology – Telecommunications and information exchange between systems – Local and…
-
IEEE 1450.6.1-2009
IEEE Standard for Describing On-Chip Scan Compression Published By Publication Date Number of Pages IEEE…
-
IEEE 802.3-2022
IEEE Standard for Ethernet Published By Publication Date Number of Pages IEEE 2022 7025
-
IEEE 802.11F-2003
IEEE Trial-Use Recommended Practice for Multi-Vendor Access Point Interoperability Via an Inter-Access Point Protocol Across…
-
IEEE 802.1Q-2018
IEEE Standard for Local and Metropolitan Area Networks—Bridges and Bridged Networks (Superseded Redline) Published By…
-
IEEE 493 2007
IEEE Recommended Practice for the Design of Reliable Industrial and Commercial Power Systems Published By…
-
IEEE 802.1Q-2018
IEEE Standard for Local and Metropolitan Area Networks—Bridges and Bridged Networks (Superseded Redline) Published By…
-
IEEE 802.3-2022
IEEE Standard for Ethernet Published By Publication Date Number of Pages IEEE 2022
-
IEEE 802.1Q-2018(Redline)
IEEE Standard for Local and Metropolitan Area Networks—Bridges and Bridged Networks (Redline) Published By Publication…
-
IEEE 802.11-2020
IEEE Standard for Information Technology–Telecommunications and Information Exchange between Systems – Local and Metropolitan Area…
-
IEEE 161-1971
IEEE Standard Definitions on Electron Tubes Published By Publication Date Number of Pages IEEE 1971…
-
IEEE 802.16-2009
IEEE Standard for Local and metropolitan area networks Part 16: Air Interface for Broadband Wireless…
-
IEEE 802.11F 2003
IEEE Trial-Use Recommended Practice for Multi-Vendor Access Point Interoperability Via an Inter-Access Point Protocol Across…
-
IEEE 802.16 2009
IEEE Standard for Local and metropolitan area networks Part 16: Air Interface for Broadband Wireless…
-
IEEE 802.11-2020
IEEE Standard for Information Technology–Telecommunications and Information Exchange between Systems – Local and Metropolitan Area…
-
IEEE 802.3-2022
IEEE Standard for Ethernet Published By Publication Date Number of Pages IEEE 2022
-
IEEE 1313.2 1999
IEEE Guide for the Application of Insulation Coordination Published By Publication Date Number of Pages…
-
IEEE 823-1989
IEEE Standard Methodologies for Specifying Voicegrade Channel Transmission Parameters and Evaluating Connection Transmission Performance for…
-
IEEE 1450.6-2006:2005 Edition
IEEE Standard Test Interface Language (STIL) for Digital Test Vector Data-Core Test Language (CTL) Published…
-
IEEE 3006.8 2018
IEEE Recommended Practice for Analyzing Reliability Data for Equipment Used in Industrial and Commercial Power…
-
IEEE 802.11 1999
Standard for Information Technology – Telecommunications and information exchange between systems – Local and Metropolitan…
-
BSI PD ISO/IEC TR 29119-13:2022
Software and systems engineering. Software testing – Using the ISO/IEC/IEEE 29119 series in the testing…
-
IEEE ISO IEC 21451 1 2010
ISO/IEC/IEEE Standard for Information technology — Smart transducer interface for sensors and actuators — Part…
-
IEEE 802.11-2020(Redline)
IEEE Standard for Information Technology–Telecommunications and Information Exchange between Systems – Local and Metropolitan Area…
-
IEEE 823-1989
IEEE Standard Methodologies for Specifying Voicegrade Channel Transmission Parameters and Evaluating Connection Transmission Performance for…
-
IEEE C57.13 1978
IEEE Standard Requirements for Instrument Transformers Published By Publication Date Number of Pages IEEE 1978…
-
IEEE 493 1998
IEEE Recommended Practice for the Design of Reliable Industrial and Commercial Power Systems (Gold Book)…
-
IEEE 802.3-2022(Redline)
IEEE Standard for Ethernet (Redline) Published By Publication Date Number of Pages IEEE 2022 7025
-
IEEE 823 1990
IEEE Standard Methodologies for Specifying Voicegrade Channel Transmission Parameters and Evaluating Connection Transmission Performance for…
-
IEEE 91 1973
IEEE Graphic Symbols for Logic Diagrams (Two State Devices) Published By Publication Date Number of…
