Bluetooth audio&ANCFour channel testing solution

With the continuous upgrading of the Bluetooth industry, in order to meet the low-cost and high-efficiency testing needs of Bluetooth production enterprises, OPPO has launched Bluetooth conventional acoustics and ANC four channel Bluetooth testing solutions. The ANC four channel Bluetooth performance testing system can solve the pain points of production capacity and high-precision testing, and achieve stable, efficient, and accurate production line automation testing.

One stop meets Bluetooth standards&ANCacoustic testing

With the continuous advancement of Bluetooth technology and the sustained popularity of the Bluetooth audio device market, users' performance requirements for products are also increasing day by day. The increasing maturity of ANC (Active Noise Reduction), ENC (Environmental Noise Reduction) and other functions not only enriches users' listening experience, but also puts forward higher requirements for production line testing. Faced with this challenge, we have launched a four channel Bluetooth audio&ANC performance testing system with our strong research and development capabilities and keen market insight. This system is designed to address production capacity bottlenecks and high-precision testing requirements, and can cope with various pain points in production line testing.

Bluetooth audio&ANCFour channel testing solution

Step 1: Calibration TestANC active noise reduction depth

lAfter connecting the Bluetooth earphones, adjust the GAIN value through the command and verify that the noise reduction depth of the earphones reaches the standard value.

lThe testing and verification of noise cancelling headphones include: maximum active noise cancelling value, average noise cancelling value, and balance of noise cancelling between the left and right ears.

Step 2: Bluetooth Audio Test

lRoutine audio testing of headphones, including speaker and microphone.

lSpeaker end (A2DP) testing items: frequency response, sensitivity, distortion, phase curve R&B。

lMIC end (HFP) testing items: frequency response, sensitivity, distortion.

System features:

lUltra efficient, testing and calibrating 2 pairs of ANC headphones simultaneously.

lEvery time you put in headphonesConduct testing and automatically pair TWS pairs after testing is completed.

lAfter the test is completed, a test report will be automatically generated and saved, which can be integrated with the MES system.

lTesting R&B: Extremely accurate for abnormal sounds such as air leaks, noise, vibration, and breakage! Can replace manual listening!

Acoustic testing equipment - shielding scheme

software platform

Test Process