Thanks. I'm not sure what's going on. It looks like the _flash_read is returning ESP_FAIL although I'm not sure as I would be expecting to see a log statement. Not sure why you don't see these. If _flash_read fails, it _may_ be because you have problem with the generation of audio-esp.bin and the in...

Can you share the code changes you're making so I can have a look at what's happening?

Which version of esp-idf are you using?

Hi audiophil. It would help if you post the code you've changed. I just had a look, and was able to loop successfully by making this change: Modify tone_stream.c at line 196, from: if (info.byte_pos + len > info.total_bytes) { len = info.total_bytes - info.byte_pos; } to: if (info.byte_pos == info.t...