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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@bigplik
I have some mp3 samples from internet. I use audacity to decrease rate to 4000Hz but without success, any file I convert by audacity to raw file doesn't work from TF card. There is only some noice. When I use code for short files to run without TF card it is working only with Gordon's code from the web, but not when I convert my files by converter provided here https://www.espruino.com/File+Converter