ESP32 to process audio signals: Software (Fourier Transforms) and Hardware (MSGEQ7)

Here we use ESP32 microcontroller to analyze real-time audio signals
Code: github.com/debsahu/ESP32_FFT_...
1. Real-time FFT to get frequencies
2. Use MSGEQ7 chip to get the same data
3. Display frequency bands on LEDs as bars
FFT basics: • But what is the Fourie...

[@DesignitBuilditRepairit]

Another great project to tackle thanks for a great video 👍

[@Colarocker]

thanks for the informative video! can you say something about the usage of processing power without and with the extra IC with an ESP32?

[@anahiyanina9566]

Hi, thanks for the video, I would like to know the maximum frequency of ADC on this device?. I am using the same microphone and need 50KHz sample rate.

[@tharangabalasooriya1328]

Thanks and grate project
Can i use I2S mic like SPH0645 unit for audio input , for this project..?

[@aritrabose4147]

Can you make a video on how to take up two signals simultaneously using timer code in esp32

[@Kanoshe]

alright what if, i only want 1 color, and 1 sound range how cheaply could it be done?

[@instantjustice164]

Thanks for the informative video! 👍
Where can we buy this IC MSGEQ7 in India? Can you please provide any online shopping link please.

[@wishitwantitdoit5477]

How could i use an arduino uno instead of the esp board? Also what mic did you use ?

[@wishitwantitdoit5477]

@@debsahu7801 ok where can I find the code for the MSGEQ7

[@sambeard4428]

I don't think the uno has the required processing power/ memory space etc

[@xmarks-spot]

If I wanted to wire this up directly to an audio output jack of a cellphone, what changes would I have to make to your circuit? In other words instead of using the microphone board. Great video!

[@brendousergeerickossonon6223]

@@debsahu7801 Hi, Thanks already for the video. this link is dead. do you have other links that illustrates what you said?

[@brendousergeerickossonon6223]

@@debsahu7801 Thanks! its strange...Im getting signals even when no sound is being played. I always have the same figures in the serial plotter, no matter the sound that plays..do you have an idea of what the problem could be? (I'm using an ESP8266)

[@123umesho]

Nice idea !
Sir, is there any chip which does fft of a signal which carries encoded data to further decode that data?

[@123umesho]

@@debsahu7801 thanks for replying!

[@hse9406]

How much maximum points(samples) support esp32 for fft or fht?

[@hse9406]

@@debsahu7801 what model of esp32 i can set points at least 4096 samples on it?