Mark would you mind sharing the SPIFFS code that you almost got to work? Maybe if we are working on the same codebase we can figure it out together.

You found a repo that can play audio files? What is the link?

I have been able to get the sample code from the latest esp codebase, it plays a pretty annoying garbage sound. But I still can't figure out how to go from an SD card to a bluetooth speaker.

Bump.

Anyone have any thoughts on how to play a .wav file or .mp3 file?

I haven't solved this yet, but I think I'm on the right track to a solution. I figure I'll just keep posting my notes here in case someone else is trying to do the same thing and ends up searching this forum for the answer. My latest realization is that i'm using code from the esp-adf library which ...

I feel like the code I need to make this work exists in the ADF library, but at this time I'm not smart enough to get it working. (still trying though!) There is an example called play_sdcard_wave_example.c that seems like, with some modifications, it should work. At the moment in that example, I'm ...

I feel like I am a tiny bit closer. The docs say it is a PCM data stream. After a bit of research a .wav file is a PCM format. My next plan is to put a .wav file on an SD card, and see if I can somehow use that as the audio data. If anyone out there knows how to do any part of this, I would love to ...

After quite a bit of trial and error with different bluetooth headphones and speakers, I finally got a speaker (and a set of headphones) connected. When it played a sound I thought it was broken, but then found out that it was designed to play some static. Can someone explain the bt_app_a2d_data_cb(...