ANC Capability
We realize the ANC effect by two Stages:
2. Production Stage
• The Deviation on microphone and loudspeaker, and the cavity in the assembly process, will impact the ANC effect.
• To reduce this impact and realize target ANC result , the noise reduction gain value needs to be fine tuned, modified,
on spot tested and burned
1. R&D Stage: Optimized Product Filter Link Design
Test in R&D stage:
Frequency sweep test
Sweep pressure test
Phase test
Thiele-Small test
Sensitivity test(Mic & speaker)
SNR test
Balance test
Rub&Buzz Testing
Impedance test
|
|