Forum Rule: Always post complete source code & details to reproduce any issue!
Results 1 to 3 of 3

Thread: Goertzel

  1. #1
    Senior Member
    Join Date
    Oct 2013
    Location
    Rogersville MO
    Posts
    253

    Goertzel

    Paul


    There seems to be this random rumor on the web that you have Goertzel code for the teensy, any truth to it?

  2. #2
    Senior Member PaulStoffregen's Avatar
    Join Date
    Nov 2012
    Posts
    22,486
    Years ago, I did write a 7 band Goertzel DTMF decoder for a different AVR chip. It worked quite well. The Goertzel algorithm was coded in hand optimized assembly and used under 15% of the CPU time for all 7 bands.

    That old code was never released. It's collecting dust somewhere.

  3. #3
    Senior Member
    Join Date
    Oct 2013
    Location
    Rogersville MO
    Posts
    253
    Looks like I need to dig into arm_math.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •