This ITU-T Recommendation describes procedures to be used to assess the subjective performance of hands-free terminals. The methods defined here may be used to assess the extent to which a hands-free terminal operates effectively for speech. This ITU-T Recommendation does not define specific values for hands-free terminal parameters (e.g. convergence time of echo cancellers) to yield satisfactory subjective performance.
ITU-T P.832 SPANISH-2000 Referenced Document
ITU-T P.10-1998 Vocabulary of Terms on Telephone Transmission Quality and Telephone Sets - Series P: Telephone Transmission Quality@ Telephone Installations@ Local Line Networks Vocabulary and Effects of Transmission Parameters on Customer Opinion of Transmission Quality
ITU-T P.340-2000 Transmission Characteristics and Speech Quality Parameters of Hands-Free Terminals Series P: Telephone Transmission Quality Telephone Installations Local Line Networks Subscribers' Lines and Sets Study Group 12; Covering Note: March 31 2004
ITU-T P.501-2000 Test Signals for Use in Telephonometry - Series P: Telephone Transmission Quality@ Local Line Networks Objective Measuring Apparatus
ITU-T P.502-2000 Objective Test Methods for Speech Communication Systems Using Complex Test Signals Series P: Telephone Transmission Quality Telephone Installations Local Line Networks Objective Measuring Apparatus Study Group 12
ITU-T P.51-1996 Artificial Mouth - Series P: Telephone Transmission Quality Objective Measuring Apparatus Study Group 12; 14 pp
ITU-T P.56-1993 Objective Measurement of Active Speech Level - Telephone Transmission Quality Objective Measuring Apparatus (Study Group XII) 15 pp
ITU-T P.57-1996 Artificial Ears - Series P: Telephone Transmission Quality Objective Measuring Apparatus (Study Group 12; 32 pp)
ITU-T P.58-1996 Head and Torso Simulator for Telephonometry - Series P: Telephone Transmission Quality; Objective Measuring Apparatus Study Group 12
ITU-T P.581-2000 Use of Head and Torso Simulator (HATS) for Hands-Free Terminal Testing Series P: Telephone Transmission Quality, Telephone Installations, Local Line Networks Objective Measuring Apparatus Study Group 12
ITU-T P.800-1996 Methods for Subjective Determination of Transmission Quality - Series P: Telephone Transmission Quality; Methods for Objective and Subjective Assessment of Quality Study Group 12; 38 pp [Superseded: ITU-T P.80 ITU-T P.80]
ITU-T P.810-1996 Modulated Noise Reference Unit (MNRU) - Telephone Transmission Quality Methods for Objective and Subjective Assessment of Quality (Study Group 12) 14 pp
ITU-T P.830-1996 Subjective Performance Assessment of Telephone- Band and Wideband Digital Codecs - Telephone Transmission Quality Methods for Objective and Subjective Assessment of Quality (Study Group 12) 27 pp