├── Makefile ├── README.md ├── components └── erfeng-fft │ ├── component.mk │ ├── fft.md │ ├── include │ ├── Config.h │ └── erfeng_fft.h │ ├── src │ └── erfeng_fft.c │ └── tests │ ├── audio.c │ ├── audio.h │ └── main.c ├── main ├── app_adc.c ├── app_adc.h ├── component.mk ├── freq_domain.c ├── freq_domain.h ├── handler.c ├── handler.h ├── main.c ├── time_domain.c └── time_domain.h └── sdkconfig /Makefile: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/erfengwelink/esp32_audio_spectrum/HEAD/Makefile -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/erfengwelink/esp32_audio_spectrum/HEAD/README.md -------------------------------------------------------------------------------- /components/erfeng-fft/component.mk: 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