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IEEE 661 PDF
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IEEE Standard Method for Determining Objective Loudness Ratings of Telephone Connections
| Published by | Publication Date | Number of Pages |
| IEEE | 11/29/1979 | 20 |
IEEE 661 – IEEE Standard Method for Determining Objective Loudness Ratings of Telephone Connections
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. .
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