Audio spectrum with onboard ADC DMA
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2021-12-27 12:27 PM
How to calculate audio signal from ADC in DMA using FFT to display on LED 10x10. I have STM32F411 DISCOVERY and connected left and right (2 channels) audio from smartphone. I found this guy https://www.youtube.com/watch?v=3WF4CGKoMas but his code oparate on external I2S 24bit ADC . What values should i use (buffers sizes, samples, etc.)
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ADC
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DMA
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STM32F4 Series
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