arduino-audio-tools
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Driver for Cmsis-FFT see https://arm-software.github.io/CMSIS_5/DSP. More...
#include <AudioCmsisFFT.h>
Public Member Functions | |
bool | begin (int len) override |
void | end () override |
void | fft () override |
Perform FFT. | |
bool | getBin (int pos, FFTBin &bin) override |
gets the value of a bin | |
float | getValue (int idx) override |
Get result value from Reverse FFT. | |
bool | isReverseFFT () override |
Returns true if reverse FFT is supported. | |
bool | isValid () override |
float | magnitude (int idx) override |
Calculate the magnitude (fft result) at index (sqr(i² + r²)) | |
float | magnitudeFast (int idx) override |
same as magnitude | |
void | rfft () override |
Calculate reverse FFT. | |
bool | setBin (int pos, FFTBin &bin) |
sets the value of a bin | |
bool | setBin (int pos, float real, float img) override |
sets the value of a bin | |
void | setValue (int idx, float value) override |
Sets the real value. | |
Driver for Cmsis-FFT see https://arm-software.github.io/CMSIS_5/DSP.