code for audio delay/echo, and for eq

Discussion in 'Embedded Systems and Microcontrollers' started by sagetone, Aug 21, 2016.

  1. sagetone

    Thread Starter New Member

    Jun 16, 2016
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    Hi,

    I'm starting an audio project that will be based on a PIC32 or an ARM M3 (micro not finalized yet). Looking for sample/example code for audio delay, aka echo, and for parametric EQ. Please advise where I might find this.

    Thank you,

    Todd
     
  2. dannyf

    Well-Known Member

    Sep 13, 2015
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    Google?
     
  3. sagetone

    Thread Starter New Member

    Jun 16, 2016
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    Hi dannyf,

    Been doing quite a bit of that lately! Looking to see if any folks in this forum have any further ideas.
     
  4. ErnieM

    AAC Fanatic!

    Apr 24, 2011
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    Microchip will have some audio codecs on their website.
     
  5. sagetone

    Thread Starter New Member

    Jun 16, 2016
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    Thanks ErnieM. I'm good on the codecs for now, have a few choices, and a couple boards with codecs already on them. Right now, I'm trying to find code snippets for audio echo/delay, and audio EQ/parametric EQ/filtering.
     
  6. ErnieM

    AAC Fanatic!

    Apr 24, 2011
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    Yeah, and I pointed you to some.
     
  7. sagetone

    Thread Starter New Member

    Jun 16, 2016
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    Thanks ErnieM. I actually work for Microchip, and a bit familiar with what they have. I know that they have EQ code for PIC32. Still missing delay/echo for PIC32, and looking for all of these code examples for M3.
     
  8. NorthGuy

    Active Member

    Jun 28, 2014
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    Delay/echo is just offset in time. How hard is it to write from scratch? Is it really more effort in your mind than spending quite considerable time looking for the code on the Internet? I'm not trying to mock you. I'm genuinely want to understand your mindset because I'm working on a development tool.
     
  9. sagetone

    Thread Starter New Member

    Jun 16, 2016
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    Thanks NorthGuy. I think you're right, that delay/echo, for example, is not difficult. I'm not a code guy. I'm the audio guy on the project team and am researching example code to give to the smart code guys! :) (Who by the way are NOT audio guys)
     
  10. NorthGuy

    Active Member

    Jun 28, 2014
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    I see. I am a code guy. I'm pretty sure your code guys will be able to do this without code examples. And if they fail, you just need better code guys :)
     
  11. sagetone

    Thread Starter New Member

    Jun 16, 2016
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    Thanks NorthGuy. Point taken. I will take it from here.
     
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