I'm trying to build a miniature warp core (purely decorative, not functional) with the main element being an LED chaser circuit with 10 LEDs. I'm planning on using a 555 timer and a 4017 decade counter like described in many examples one can find on the internet for LED chaser circuits (example).

Now I had the idea that the miniature warp core would be much more impressive if it actually produced the typical warp core sound while it is active, synchronized to the chasing LEDs.

The sound would not have to be the exact sound of course, any oscillating low humming that could conceivable be caused by the engine of a starship would do. Unfortunately my experience with building electronic circuits is extremely limited, so I'm not sure how to produce such a sound. In my naive understanding it could work e.g. by creating a low base sound using another 555 and then somehow use the signal from the 555 driving the LEDs to modify the base sound.

  • \$\begingroup\$ So you are interested in a low-pitched, repeated thrumming noise that would sync to the lights? \$\endgroup\$
    – mikeY
    Aug 13, 2013 at 16:30
  • \$\begingroup\$ @mikeY Something like that. It should sound like something out of a science fiction engine room. \$\endgroup\$
    – user27438
    Aug 13, 2013 at 16:33
  • \$\begingroup\$ It would seem to me that there might be two basic approaches. The first would be to create original tones through circuitry and the second to trigger/play/invoke a prepared/recorded sound. \$\endgroup\$
    – mikeY
    Aug 13, 2013 at 16:38
  • 4
    \$\begingroup\$ +1 for clarifying that the miniature warp core would be purely decorative. \$\endgroup\$
    – akohlsmith
    Aug 13, 2013 at 17:51
  • 1
    \$\begingroup\$ -1 for clarifying that the miniature warp core would be purely decorative. <just kidding> \$\endgroup\$
    – user3624
    Aug 14, 2013 at 2:51

1 Answer 1


You'll never do it with a 555.

Start by ripping a DVD of the TV show or movie. Isolate the warp core sound. Create an MP3 of that sound (and any others that you might be interested in). Then buy one of these things, put it all together. And you're done.


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.