The device is placed in an acoustic chamber or a controlled room. A reference microphone captures the audio output. The engineer plays a "sweep" (a sine wave that moves from 20Hz to 20kHz) to generate a frequency response curve.
Who uses the Qualcomm Audio Calibration Tool? The list is extensive: qualcomm audio calibration tool
Snapdragon Sound certification requires strict adherence to specific calibration standards. Whether you are using a wired headphone jack, a Bluetooth LE Audio codec (aptX Adaptive), or a USB-C dongle, the calibration must remain consistent. The device is placed in an acoustic chamber