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What are you trying to do?? End use? I have been playing with FFT. DHT, DFT etc... lately and I might be of some help....

RichardS

RichardS wrote:What are you trying to do?? End use? I have been playing with FFT. DHT, DFT etc... lately and I might be of some help....

RichardS

Hi Richard,

On the topic of FHT I want to build a sound recognition module. My idea is to use sound detector (f.e. https://www.sparkfun.com/products/12642) and via FHT library to do audio spectrum analysis and compare it to values for specific noise. Do this seems reasonable at all? Is it possible to do such thing with ESP32?

saw your old post,

I am doing a project LED lights (neopixels) reacting to sound. I got a successful one using RPI using lighshowpi.or. But I wanted to simplify this to simply using a ESP8266 or ESP32, i recently found this i2S microphone https://www.adafruit.com/product/3421

is it possible to connect to esp32 and have 10 leds light up depending on surrounding sound. The each led would represent a audio frequency range.

It is possible, hard?

How'd the project go?
I'm also doing a project atm with neopixels and a microphone you see.
I would like to hear about your findings!