Finally, it is recommended to select a few basic frequencies to quickly perform simple biological calibration.
Compared with the hearing threshold of the same frequency that you know, the difference is no more than 10dBHL. According to this method, quickly check the air conduction earphone and bone conduction earphone.At the same time, listen to whether there is crossover or other alternating current sounds.
Link： Routine testing of audiometers, routine homework of the fitter
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