GB/T 7614-1987
AbolishedAn artificial ear of wide band type for the calibration of earphones used in audiometry
校准测耳机用的宽频带型仿真耳
Application Summary AI generated
This standard specifies the characteristics of a wide-band artificial ear used to simulate the acoustic impedance of the human ear for calibrating earphones. It is applied in audiometry and hearing test equipment manufacturing to ensure accurate and reproducible sound pressure level measurements. The standard is primarily used by laboratories and manufacturers for the calibration of earphones in hearing aid and audiological testing contexts.
Related Standards
GB/T 3241-1998
Octave-band and fractional-octave-band filters
GB/T 17311-1998
Standard volume indicators
GB/T 17312-1998
Random-incidence and diffuse-field calibration of sound level meters
GB/T 17182-1997
Peak programme level meters
GB/T 15845.5-1995
Performance requirements of audiovisual terminals--Video code for audiovisual services at P×64kbit/s
GB/T 9403-1988
The reflection grayscale test chart
GB/T 3175.2-1987
Reflection flesh tone test card
GB/T 3175.1-1987
Reflection colour bar test card
Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.