GB/T 9402-1988
AbolishedMinimum performance requirements on high fidelity microphones
高保真传声器最低性能要求
Application Summary AI generated
This standard specifies the minimum electroacoustic performance requirements for high-fidelity microphones, including parameters such as frequency response, sensitivity, and distortion limits. It is applied in the design, manufacturing, and quality testing of consumer and professional audio equipment, ensuring microphones meet baseline fidelity criteria for recording, broadcasting, and sound reinforcement systems. The standard is particularly relevant for domestic Chinese market compliance in telecommunications and audio electronics.
Related Standards
GB/T 19263-2003
Technical specification of transport of MPEG-2 signals in SDH network
GB/T 15845.4-2003
Performance requirements of audiovisual terminals--Narrow-band audio visual system and terminal equipment
GB/T 18472-2001
Test signals for digitally encoded colour television system
GB/T 12199-2000
Environmental testing requirements and methods for non-broadcast video tape recorders
GB/T 12841-2000
Generic specification for the transportmechanism of cassette tape recorders
GB/T 18123-2000
Audio，video and audiovisual systems--Application of Y/C connector and preferred electrical matching values for video systems
GB/T 18122-2000
Audio visual equipment and systems--Rating plates--Marking of electricity supply
GB/T 18121-2000
Audio visual，video and television equipment and systems--Video tape leader and trailer for education and training applications
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.