yoradio bluetooth module

[Pavot2010]

Hello, I bought this .

https://www.audiophonics.fr/en/bluetooth-modules-wireless-reception/tinysine-tsa5001-bluetooth-53-i2s-transmitter-module-aptx-hd-p-18399.html?srsltid=AfmBOoqDIAeZBD9gs-yMdFGvlU0Rk7-vOsDOfiT1lwRmcnZtoKSHxPO2

https://www.tianjiarun.com/post/103.html?language=2&fbclid=IwY2xjawKT2Y1leHRuA2FlbQIxMABicmlkETBEem13NXZVT2NKc3VFcnFXAR7fFqNK9mlxgfEXYKrVurW6EN5Xur2A2AxwCpbcW9L3mv1LlrTcfEfq9M92Sg_aem_lTu21VHLLwt0CG1agHmakw

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

My question on FB in the yoradio group

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

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

[schreibfaul1]

This is an interesting board. It looks like the M2101 is installed. There is no publicly available data sheet for this. It is possible that it is not compatible with the PCM5102A. Maybe the Japanese data format is used, try setI2SCommFMT_LSB(true).

[Pavot2010]

Thank you for the answer, where exactly should I enter the code? Somewhere in the library, please.

[Pavot2010]

It would be possible to recalculate the frequency in the code. From 44.1 kHz to 48 kHz, which is the default on the module.

[schreibfaul1]

This is just a guess that your board uses the Japanese or called LSBJ (Least Significant Bit Justified) format. You simply add this in the SetUp(), preferably after setPinout().

I2S_COMM_FMT false: "Philips" eg. PCM5102A, CS4344,
I2S_COMM_FMT true: "LSBJ" eg. PT8211

This certainly has nothing to do with the sample rate.

[schreibfaul1]

It looks as if the DAC works with the standard (Philips) format. It is not necessary to change the format. It is probably not a real DAC but prepares I2S for BT transmission. Then the sample rate must always be 48KHz. But that is just a guess.

[schreibfaul1]

In version V3.3 (currently in the branch, not yet in the master) the I2S frequency is always 48KHz. Regardless of the sample rate of the input signal. This means that your BT module will work without dropouts.