ITU-T P.57-1993
Artificial Ears - Telephone Transmission Quality - Objective Measuring Apparatus - Corrigendum 1 (Study Group XII) 16 pp

Standard No.

ITU-T P.57-1993

Release Date

1993

Published By

International Telecommunication Union (ITU)

Status

Withdraw

Latest

ITU-T P.57-1993

Scope

This Recommendation specifies the Artificial Ears for telephonometric use. Three types are recommended, covering the different transducers, types, sizes and technologies.

ITU-T P.57-1993 history

• 1993 ITU-T P.57-1993 Artificial Ears - Telephone Transmission Quality - Objective Measuring Apparatus - Corrigendum 1 (Study Group XII) 16 pp