AD8318 Artificial Human Head Fixture used to measur the acoustic performance of earphones, receivers, telephone handsets and other devices

AD8318 is a test fixture used to simulate human ear hearing. An adjustable coupling cavity design is added to the artificial ear of Model A, which can adjust the distance between the front and back of the pickup. The bottom of the fixture is designed as an artificial mouth assembly position, which can be used to simulate the position of the human mouth to sound and realize the microphone test; Model B’s artificial ear is flat on the outside, making it more accurate for headphone testing.