Application Note: Loudspeaker Rub and Buzz Measurements

When designing acoustic products, the speaker driver itself needs to go through quality assurance testing then again once the driver is implemented into the final product. Amongst the many tests quality assurance puts a product through, in an acoustic product like a loudspeaker, detecting Rub & Buzz is critical. In this application note, we introduce what Rub & Buzz is and define four Rub & Buzz detection results used on production lines.