As more and more consumer products are embracing the innate benefits of digital audio amplifiers, the demand is increasing for better and better audio fidelity at increasingly lower cost.
A human ear that is reasonably young and has not suffered too much blasting from high sound levels can detect audio frequencies ranging from about 20 Hz to 20 kHz. Thus this is the range most often ...
That's the test-equipment hardware challenge. Equally or more important is knowing how to make the measurements. The plusses and minuses of simply measuring audio amplitude take up a page and a half ...
Increased device complexity can be addressed by providing parallel test while decreasing the throughput overhead of the ATE architecture. The consumer world is converging, and the lines between ...