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Not the most recent version I just posted on to My GitHub has improvement to the Interrupt handler.

Where you can not use the same INTx pin for the DREQ of the VS10xx chip and your other task. However you should be able to use another INTy without problem. I have successfully done so. Assuming the INTy service routine is not blocking for too long, before releasing the Interrupt mask.

Additionally, re-sampling the audio file to lower Bit rates significantly reduce the overhead or increasing the idle time. As stated in documentation Performance Section.