ITU-T P.79-1999
Calculation of Loudness Ratings for Telephone Sets - Series P: Telephone Transmission Quality, Telephone Installations, Local Line Networks - Measurements Related to Speech Loudness Study Group 12; COVERING NOTE: 05/25/2000; COVERING NOTE: 01/27/2005

Standard No.

ITU-T P.79-1999

Release Date

1999

Published By

International Telecommunication Union (ITU)

Status

Withdraw

Replace By

ITU-T P.79-2007

Latest

ITU-T P.79-2007

Scope

This Recommendation describes the preferred method for calculating loudness ratings mainly in the case of local telephone systems which transmit a band of frequencies not exceeding about 180-4500 Hz. However, the general algorithm can also be used with th

ITU-T P.79-1999 history

• 2007 ITU-T P.79-2007 Calculation of loudness ratings for telephone sets (Study Group 12)
• 1999 ITU-T P.79-1999 Calculation of Loudness Ratings for Telephone Sets - Series P: Telephone Transmission Quality, Telephone Installations, Local Line Networks - Measurements Related to Speech Loudness Study Group 12; COVERING NOTE: 05/25/2000; COVERING NOTE: 01/27/2005