The audio signal analyzer is based on a 32-bit MCU controller, through the AD converter for audio signal sampling, the continuous signal discrete, and then through the FFT fast Fourier transform computing, in the time domain and frequency domain of the various audio frequency signal weight and power, and other indicators for analysis and processing, and then through the high-resolution LCD display signals in the spectrum. The system can accurately measure the audio signal frequency range of 20 Hz-10KHz, the range of 5-5Vpp mVpp, resolution of 20 Hz and 100 Hz correspondent. Power measurement accuracy up to 1 , and be able to accurately measuring the periodic signal cycle is the ideal audio signal analyzer solution.

6595c71c-86b4-4e89-b58b-ef2c821182e3.doc

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