I need a fast fourier transform on an audio analysis of the input from a digital microphone with I2S digital audio protocol. Using a STM32L4, direct memory access has to be used (DMA) and RTOS.
Current code working but doesn't have a FFT and missing also a exponential moving average filter for SLOW measurements (each second), the FAST measurement (125ms) is being read correctly.
It need to be provided the 3 frequencies with highest power on each measurement. Also max, min, avg, Leq. of the Audio measurements
Please only highly experience in DSP embedded systems in C.
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I have just done such project and I am expert for stm32. I have a development board, so that I can finish ASAP. I am all ready for hardware and software.
I have a degree in Telecommunication and Networking and worked in the multinational company and have a hand on experience in matlab and great command on Fourier Transform
I have an experience of 5 years in field of Embedded development. i have lots of experience on stm 32 controllers currently i work on FFT for audio j
10 years embedded systems experience. 6 years DSP with a focus on audio analysis. Have created and deployed FFT analysis and FIR filters in the industry for several years.