Meta Hearing Technology (MHT)
Add-on to the SPL Task and Optional Module for the KLIPPEL QC Framework
Features and Benefits
- Improves standard Rub & Buzz analysis
- Defect detection beyond human hearing
- Extends analysis bandwidth for defect symptoms
- Attenuates high-order harmonic distortion
- Unmask subtle defect symptoms
Some defects in loudspeakers such as loose particles in the gap produce random symptoms, which may be not audible during end-of-line testing. Other defects such as voice coil rubbing become worse after some time and may be detected when the transducer is mounted in the car audio system or in any other final application. To avoid shipping a defective unit defects should be detected in manufac-turing even if they are inaudible for a human tester.
Specification
Requirements
Software
• QC Standard System or QC Programmable System
Accessories
• Microphone
Related Information
Other Modules of the QC System
- Sound Pressure Task (SPL):
Measurement of frequency response, THD and Rub & Buzz
General Features of the QC System
Patents
USA: 7,221,167B2
