This topic uses the DSP processor to control TLC320AD50 to collect audio signals, analyzes the spectrum of the audio signal in CCS software, uses Matlab to design the corresponding IIR digital filter (one of the low-pass, band-pass or band-stop filters) and obtains the coefficient of the filter H(z), and then writes a DSP program (C language or assembly) based on these coefficients to process the collected signal, and finally obtains the spectrum of the processed audio signal in CCS software, and compares the spectrum of the signal before and after filtering. , the application of the interrupt system and the program are implemented.
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