Propeller Head Plaza

Posted by Charles Hansen (M) on August 02, 2003 at 11:57:30

In Reply to: Re: Concerning feedback in the human body... posted by Scott Frankland on August 02, 2003 at 11:28:59:

I still don't see any examples of feedback in living organisms extending to frequencies above a few tens of Hz. Think about a cat attacking a bird. In mid-spring he will have to adjust his attack as the bird takes flight. Human reaction times (at least in relation to driving) are usually quoted as around 0.25 to 0.5 seconds. Even if we give the cat a full order of magnitude advantage (just to be *really* safe), we are still only talking about a maximum of 20 to 40 Hz.

So that seems interesting. Unless you can find some example of reaction times (feedback) much, much faster than 50 mS, it would seem that feedback as used in living organisms is used only *below* the audio range. Maybe that's the principle that should be adopted for audio electronics as well...

Best regards,
Charles Hansen

• Re: Well, yahbut... - Scott Frankland 13:51:24 08/02/03 (6)
  • Interesting stuff! - Charles Hansen 21:43:18 08/02/03 (5)
    • Feedback here, there, and elsewhere - Scott Frankland 01:41:22 08/03/03 (4)
      • Linear Stages - Charles Hansen 08:02:29 08/03/03 (3)
        • Re: Linear Stages - Scott Frankland 14:54:08 08/03/03 (1)
          • You're right.... - Charles Hansen 20:27:04 08/03/03 (0)
        • Re: Linear Stages - Steve Eddy 09:58:08 08/03/03 (0)