ANC headphone test with automatic calibration

ANC headphone test with automatic calibration

With the rapid development of electronic technology, a series of headphones with novel shapes and excellent performance have come into the view of the public. In recent years, the public has become increasingly demanding for noise cancellation performance, and the market of ANC headphones has grown rapidly. The increase in demand naturally requires more supply. At the same time, as the traditional ANC headphone testing process is cumbersome, and its operation is difficult and inefficient, the use of efficient automated test methods can improve efficiency significantly. Our ANC headphone auto-calibration test solution cancels the tedious manual gain debugging steps, leads to stable and reliable test results, and reliably ensures the product quality.

Features
  • One-touch test sweep, without any need for manual adjustment
  • Automatically get the best curve and eliminating manual comparison
  • One-touch automatic programming for gain
Solution introduction
ANC headphone R&D testing

ANC headphone R&D testing

  • ANC feed-forward filter (FFF) and feedback filter (FBF) transfer functions (amplitude, phase) testing

  • Speaker transfer functions (amplitude, phase) testing

  • Microphone transfer functions (amplitude, phase) testing

  • Positive + negative noise cancellation performance test

Test parameters
ANC headphone R&D testingANC feed-forward filter (FFF) and feedback filter (FBF) transfer functions (amplitude, phase) testing
Speaker transfer functions (amplitude, phase) testing
Microphone transfer functions (amplitude, phase) testing
Positive/negative noise cancellation performance test
Production line auto-calibration test solutionAutomatically adjusting the microphone gain to the optional value(e.g. using Trimbox)
Automatically adjusting the right/left balance of ANC and headphone

Positive/negative noise cancellation performance














Configuration list
CRY6151B Electroacoustic Tester X1 Standard Details
Trim Box X1 *Optional* Details
CRY721 Shielding Box (Loudspeaker) X1 Standard for headset Details
CRY711 Ear Simulator X2 Standard for in-ear phone Details
CRY318 Ear Simulator X2 Standard for headset Details
CRY332 Measurement Microphone X2 Working with Ear-318 Details
CRY506 Preamplifier X2 Standard for headset Details
CRY508 Preamplifier X2 Standard for in-ear phone Details
PC X1 *Optional* Details
CRY801 Testing Jig X1 Optional / Customized Details
CRY Electroacoustic Testing Software (include Bluetooth module) X1 Standard Details
CRY333 Measurement Microphone X1 *Optional* Details
CRY5611 Sound Level Calibrator X1 *Optional* Details