Hello, I bought this bluetooth module.

[Pavot2010]

Hello, I bought this bluetooth module.
https://www.audiophonics.fr/.../tinysine-tsa5001...
https://www.tianjiarun.com/post/103.html?language=2
After connecting to ESP32 and connecting to bluetooth module, the sound is distorted and intermittent. I tried connecting two bluetooth speakers and one bluetooth headset. I thought that if MAX98357 I2S works without problems, then the bluetooth module will work.
Can anyone help, can this be solved? Thanks Pavel

this is a project.https: github.com/e2002/yoradio

[pschatzmann]

I don't quite understand what you are trying to do: Please be a bit more specific.
As far as I an see this module has an analog input and output...

ps, as you can see the ESP32 is perfectly able to handle A2DP w/o any hardware module with this library...

[Pavot2010]

I have built https://github.com/e2002/yoradio
with MAX98357 I2S and I need to stream through this output I2S bluetooth module. The sound is distorted and intermittent, if there is any bad timing, I don't know. I have it connected like this.

Bluetooth module ESP32
SD (Serial Data) DOUT (GPIO1)
LRCK (Left/Right Clock) LRC (GPIO3)
BCK (Bit Clock) BCLK (GPIO2)

https://www.facebook.com/groups/598402082351854/permalink/1050329863825738/

[pschatzmann]

I don't think that you can connect this Bluetooth module to I2S.
In my understanding you would need to connect the ESP32 to an I2S DAC with an aux output which then will go to the module. I don't think you can use a MAX98357 because this is an amplifier.

As a low quality work around you could output the audio signal via the ESP32 internal DAC.

[Pavot2010]

The Tinysine TSA5001 is a compact Bluetooth 5.3 transmitter module with I2S input. It can be used to connect an audio player with an I2S digital output to an amplifier with Bluetooth wireless reception.

[pschatzmann]

I dont understand: in your first link you gave the information that you are using a BTM356!

[pschatzmann]

Are you makeing sure that you provide the required 48000 samples per second ?
I suggest to run some simple tests with the help of the AudioTools library...

[Pavot2010]

Hello,
I now know where the error is because my streams are at 44.1 kHz, the bluetooth module only supports 48 kHz and bits per sample: 16 bits, 24 bits, 32 bits.
It is easy to add a conversion to 48 kHz to the code.
Thanks for the information Pavel