About EEnco.1

EEnco.1 · 2022-04-22

I'm using SAI PDM interface to record pdm audio coming from 4 microphones. I'm using a stm32wb55rg and the memsmic1's example.There are some parts I don't understand with the SAI configuration in the example. Here is a part of the code provided in th...

EEnco.1 · 2022-04-04

I'm using MEMS1 Microphone streaming project to record PDM data coming from 4 microphones and convert it into PCM data. I'm wondering how I can access to the PCM data coming from each microphone.From what I have seen so far, the output of the project...

EEnco.1 · 2022-03-28

I'm trying to use the MEMS1 microphone streaming example, with 4 pdm microphone and a stm32wb55. I am able to use it to get a 48kHz 16 bits per sample with all the microphones without any issue.But when I try to use 24 bits per sample (I'm not sure t...

EEnco.1 · 2022-03-17

I am using a stm32wb55 and I want to acquire PDM data from a MEMS microphone and convert it into PCM. I want to use the SAI PDM interface.I have a doubt about the frequency I should put there :I want to use a decimation of 64. In the reference manual...

EEnco.1 · 2022-03-12

Hey ! I'm trying to use the "microphone streaming' with stm32wb55 in memsmic1 expansion package but I struggle to do it (i'm new to stm32cubeide).First, I import project from file system and I get this :I click on finish and I get this :Here I cannot...

EEnco.1 · 2022-04-14

Thank you !

EEnco.1 · 2022-04-08

Thanks you for your answer, I appreciate it. Ok so 24 bit resolution cannot be done with pdmtopcm library. It a bit confusing that in the code of Microphone streaming project with stm32wb55 there is switch(AudioInCtx[Instance].BitsPerSample) with a c...

EEnco.1 · 2022-03-24

Thanks, I will try to do this

EEnco.1 · 2022-03-20

No one has an idea ?

EEnco.1 · 2022-03-17

Thanks for this reply I will look into it ! Do you know if I can use PDMFilter library to get a 48 kHz PCM stream ?

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Some questions about SAI configuration for PDM audio acquisition

MEMS1 project - How are the data coming from 4 microphones organized ?

Problem when trying to get 24 BitsPerSample resolution when using MEMS1 example

What frequency Should I use for 48khz audio sampling with SAI Interface

How do you use a memsmic1 example ?

Re: Problem when trying to get 24 BitsPerSample resolution when using MEMS1 example

Re: Problem when trying to get 24 BitsPerSample resolution when using MEMS1 example

Re: How do you use a memsmic1 example ?

Re: What frequency Should I use for 48khz audio sampling with SAI Interface

Re: How do you use a memsmic1 example ?