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David Gwilliam
2026-02-12 21:00:02 -08:00
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libraries/audio-tools/examples/examples-stream/streams-memory_mp3-analog/README.md Normal file
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# Decoding a MP3 file
In this example we decode a MP3 file into RAW output and send it the analog output pins.
Currently we provide multiple mp3 decoders
- libhelix
- tinymp3
Unfortunatly non of those are currently stable in all environments....
### Output Device: Piezo Electric Element
To test the output I am using piezo electric elements
![DAC](https://pschatzmann.github.io/Resources/img/piezo.jpeg)
It should also be possible to connect a headphone to the output pins.
| PIEZO Left | ESP32
| ------------| --------------
| + | GPIO25
| - | GND
| PIEZO2 Rigt | ESP32
| ------------| --------------
| + | GPIO26
| - | GND