shenzhen baichuan electronics
equipment that supports Lightning headphones and microphones, and supports PCBA, wire, and finished headset testing. Users can download the Lightning Headphone Test App for free from AppStore, use iPhone or iTouch to connect Lightning headphones, and transfer audio data to CRY6151B electroacoustic tester via WIFI.
Headphone test path
- The electroacoustic tester sends the bench file to be played to the NETPCM application
- The NETPCM application makes the Lightning headset play the excitation signal, while the electroacoustic tester collects the signal from the headset through the ear simulator
- The electroacoustic tester analyzes response signals collected by the ear simulator and calculates parameters, such as FR and THD
Microphone test path
- The electroacoustic tester sends a microphone acquisition command. After the NETPCM application receives the command, the Lightning microphone starts to acquire signals, and the electroacoustic tester sends a calibrated excitation signal through the mouth simulator
- The electroacoustic tester sends a microphone stop acquisition command and receives a command for the signal being collected by the microphone. The NETPCM application sends the .wav file collected to the electroacoustic tester
- The electroacoustic tester analyzes the .wav file and calculates the FR and THD of the microphone
Test parameters
| Lightning Headset Test | Frequency Response (FR) |
| THD | |
| Polarity | |
| Phase | |
| Right and left positions | |
| Rub&Buzz | |
| Lightning MIC test | Frequency Response (FR) |
| THD | |
| Test time (headphone + microphone) | 8.0s |
Configuration list
| CRY6151B Electroacoustic Tester | X1 | Standard |
| CRY Electroacoustic Testing Software (Lightning equipment test software) | X1 | Standard |
| CRY602 Mouth Simulator | X1 | Standard |
| CRY333 Measurement Microphone | X1 | Standard |
| CRY506ICP Preamplifier | X1 | Standard |
| CRY711 Ear Simulator | X2 | Standard |
| CRY508 Preamplifier | X2 | Standard |
| CRY5611 Sound Level Calibrator | X1 | *Optional* |
| iPhone | X1 | *Optional* |
| Router | X1 | *Optional* |
| Fixture | X1 | Customization |
| PC | X1 | *Optional* |