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I am trying to develop an application which detects ultrosonic waves using microphone. These waves will be produced at a cetain frequency. So is it possible to detect these waves and their magnitude? Will noise and other hearable sounds be a big problem?
Most consumer/audio hardware has a maximum sample rate of 44.1 kHz (48 kHz in some cases), which means that you can’t use it for anything much above 20 kHz. Of course 20 kHz is “ultrasonic” for most adults, but it may well annoy children, cats and dogs.