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jack-chen

Simple Wav Player Using Arduino

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Integrated with the homemade low-pass filter, this Arduino-based simple WAV player is to send out PWM signal generated by UNO, then through the low-pass filter and make the PCM data stored in the flash of UNO into sounds. Basically, the player cannot be regarded as a pure WAV playback, because by extracting the data from the WAV file and storing it in an array format in UNO, this tutorial is for reference. You can make SD card based WAV player by referring to this idea. The WAV player is easy to make on different platforms and applicable for various scenarios like voice broadcast system, electronic keyboard, as long as you understand the principle of sound.

The hardware:

1.USB mini speaker
2.Digital push button
3.Freaduino UNO
4.4×6 cm universal board
5.Dupont line
6.Audio port

more imformation >>>http://www.tenco-tech.com/article.php?id=94

 

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