I2S channel digital mems microphone sound level meter

[mcizmeci]

Hello, I'm trying to measure the ambient noise level in decibels (dB) using the I2S channel for a project. I am novice at stm32 microprocessors. I just want to measure the noise level of the environment. Can you help me? Can you send me a sample project or set of commands. My processor is stm32f412. Thanks.