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Plasma Wed Nov 3 2021 at 12:57 pm
I recommend using DMA

It uses a lot less CPU and you can specify the sample frequency without needing accurate timing.

Here is a simple QB example with single-shot DMA (requires EMS):
http://www.phatcode.net/articles.php?id=208

If you want to do more advanced things like mixing you can set up a double buffer with auto-init DMA. Then SB will automatically play the buffer in a loop. But you will need an interrupt handler to update the buffer at the proper time.

Recording and playing sound in Quick Basic - Peter Swinkels (Wed Nov 3 2021 at 5:34 am)

I recommend using DMA - Plasma (Wed Nov 3 2021 at 12:57 pm)
- I made a DMA based wave player - Peter Swinkels (Sun Nov 7 2021 at 1:49 pm)
  - hmmm - Plasma (Mon Nov 8 2021 at 9:49 pm)
    - Both bugs should be fixed now. - Peter Swinkels (Tue Nov 9 2021 at 3:07 pm)
      - I was finally able to test this - Plasma (Fri Dec 31 2021 at 4:18 am)
        I finally thought to reply - Peter Swinkels (Tue Mar 1 2022 at 5:28 am)
    - I will look into that-> - Peter Swinkels (Tue Nov 9 2021 at 2:16 am)
- Question about DMA - Peter Swinkels (Sat Nov 6 2021 at 5:03 pm)
  - yes * - Plasma (Sat Nov 6 2021 at 5:34 pm)
- Thank you, - Peter Swinkels (Wed Nov 3 2021 at 1:12 pm)
  - Well - Plasma (Wed Nov 3 2021 at 1:41 pm)

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