Play audio sample from external and internal memory

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cross mob
user_1665606
Level 2
Level 2
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I was wondering how does one play samples? The first thing I'd like to achieve is to play a sine wave from a waveform sample. I wonder if I can do that or is there a simpler way?

   

Store raw audio in EEPROM -> drive DMA with clock or PWM -> pipe DMA output to DAC 

   

If there are any examples or application notes on this, I'd really appreciate that! Also, can I play audio from external memory (as in SD card)?

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