1981 FFT Audio Spectrum Analyzer demo

Loading...

Sign in or sign up now!
Alert icon
Upgrade to the latest Flash Player for improved playback performance. Upgrade now or more info.
1,063
Loading...
Alert icon
Sign in or sign up now!
Alert icon

Uploaded by on Nov 14, 2009

4K ROM by Steve Bjork for Color TRS-80 computer.
Music by friends around the same time.

When I saw this I immediately knew what wonderful things could be done with the FFT, although I am still trying to write the programs for those things. The FFT is deceptively simple and complex at the same time. This demo visualizes the human 40 millisecond time/frequency perception window. (Time and frequency cannot "really" coexist because they are orthogonal dimensions.) This is similar to a graphic equalizer display and an MP3 audiovisualizer or color organ (an effect that appears near the end).

Category:

Music

Tags:

License:

Standard YouTube License

  • likes, 0 dislikes

Link to this comment:

Share to:
see all

All Comments (1)

Sign In or Sign Up now to post a comment!
  • Do remember this program well. Very cool for the coco. I hooked it to my stereo and just thought it amazing back in the day. Thanks.

Loading...

Alert icon
0 / 00Unsaved Playlist Return to active list
    1. Your queue is empty. Add videos to your queue using this button:
      or sign in to load a different list.
    Loading...Loading...Saving...
    • Clear all videos from this list
    • Learn more