Need Help on transmitting audio over BLE - STM32WB5MM.

[LR.2]

Hi,

I'm Using stm32wb5mm-dk with I2S mic to capture audio and using TAS2563 I'm playing the captured audio. The data from the mic is transmitted and played using DMA. Now I want to transmit the I2S mic data using BLE. I used notification method using sequencer. On the other side using python i receive the data and convert it to wav. I found that in my audio signal I'm getting noise. Can anyone help me with this or suggest a good way to do this(transmitting the mic data over BLE).

Thanks in advance.

[Javier1]

So you have two stm32wb5mm-dk, one with an I2C mic and another one with TAS2563 amplifier?

>>I'm getting noise

what kind of noise? white, glitchy, distortion, constant beeeep,......etc

[LR.2]

Hi Javier,

No I dont have two stm32wb5mm-dk. I have one which has both I2S mic and TAS2563. TAS2563 is used to play the sound from the MIC using Speaker.

I'm Getting Distortion when I transmit using BLE.

[Javier1]

still not clear to me what your hardware setup is.

a PC and a stm32wb5mm-dk?

which pc is it , does its bluetooth chipset suppports BLE5.0 or avobe?

Care to elaborate?

maybe this is of help to you also

https://punchthrough.com/maximizing-ble-throughput-on-ios-and-android/