I am running a pipeline that outputs audio from spiffs to a wav decoder to a bluetooth speaker.

I want to keep the bluetooth speaker connection open for a long time, and when I am ready, send new sounds to the speaker. There might be long periods of time in which no sound is sent to the speaker ...

Can I suggest Espressif uses the following code as a start point to create an an official example in the ADF to show how this is done?

https://github.com/bootrino/esp32_spiffs_wav_bluetooth

Please note that there is still a problem in the above code which is that the beginning of the audio is not ...

Thanks to Angus from Espressif I now have the WAV file playing to bluetooth speaker.

BUT there is still a problem ..... the beginning of the WAV file is not played on the bluetooth speaker.

Here is the working code https://github.com/bootrino/esp32_spiffs_wav_bluetooth

Can someone from Espressif ...

I've tried again with a wav file that I made sure is a clean WAV file. I have attached it to this post - as a .doc file because this forum does not accept .wav files - so you must rename it to .wav.

I have provided the code again below and also the output log file.

Here is how I checked the wav ...

Hi Jason

Are you saying the ADF currently does software-only mp3 decoding?

I had thought it required an extra audio chip to be attached - is this incorrect?

Where can I find documentation on how to do software only mp3 decoding?

thanks!

Andrew

I've posted a couple opf help requests in this forum about playing WAV files to a bluetooth speaker.

Is anyone able to help please?

viewtopic.php?f=20&t=9283
viewtopic.php?f=20&t=9291


thanks!

I've spent days trying to make this work and I just can't.

It would be a huge help if you could please provide an example showing how to play a WAV file to a bluetooth speaker from SPIFFS please?

Ideally the example would play WAV files with different bit rates and different sample rates.

thanks .

Hello

I have been trying without luck for a couple of days to play a WAV file from a plain esp32 (no lyra, no additional components), to a bluetooth speaker.

I can't get it work. My code is below, and under that is a log of the build and execution.

The things I notice most in the log are these ...

Is it *required* to have Lyra hardware to use the ADF, or can the ADF be used with only an ESP32?

Hello

it would be extremely useful if the ADF included a software MP3 decoder.

Is this planned to be coming?

thanks!