All types of advanced mobile devices share certain design challenges. For example, they must incorporate a powerful-enough embedded processor system to support a full featured easy-to-use human interface at low power consumption. But designing a multi-function handheld audio analyzer then adds even more unique challenges based upon further professional requirements. These include •Extremely low measurement noise floor, •Safely and precisely handle wide voltage measurement range (absolute and dynamic), •Compatibility with measurement microphones and other input sources, •Adherence to a wide variety of necessary international and industry standards for measurement. Additional requirements include the efficient display of complex data onto a restricted size display, and efficient and safe operation in many different locations and physical environments. These place further design burdens on the user interface and the instrument package, respectively.
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