Sound *Toy*

[Clyd3]

I want to make a speaker or similar which causes discomfort

if i make a setup which switches its output frequency between 20kHz and a slightly lower frequency (so olders can hear it) and then step it down to 20Hz or slightly higher
and then switch between those 3 or 4 frequencies every second or so
it should be pretty interesting to experience the results

are normal speakers okay for doing this
esp. at higher volumes?

if not then what should i use???
what circuitry is recommended???
you okies are nice eh?

 

[justDIY]

didn't you post this question already?

https://www.electro-tech-online.com/threads/need-some-help-with-a-code-provided-by-atmel.20619/

 

[Dr.EM]

To produce much sound at 20hz you'll need a big powerful and probably expensive speaker, and of course a suitable power amp. I know what your trying to achieve, there is a burglar akarm that does this, but I belive the two frequencies are present simultaneously.

 

[Clyd3]

i do have another topic that died, but now i want to focus on specifics

Dr EM you said two frequencies simultaneously?
i dont know toooooooooo much, but isnt it when you do 2 frequencies simultaneosly the wavelength is generally increased therefore lower frequency or do they rapidly switch between the frequencies like i want to do???

what do i use to generate a really low sound of 20hz or so???
or a high sound of 20khz???
i'm willing to experiment and fail trying again

 

[audioguru]

A big woofer speaker in a large cabinet might produce 20Hz, but certainly not much higher than only about 3kHz. A small tweeter speaker might produce 20kHz but certainly not much lower than about 3kHz.

 

[Clyd3]

you know what audioguru???
you're extremely useful at times!!!
now, whats the best way for me to measure these frequencies???
could i do it with my pc mic
or should i go and buy something
i dont mind either way

 

[audioguru]

you know what audioguru???
you're extremely useful at times!!!

Um, thanks. :lol:

now, whats the best way for me to measure these frequencies???

1st you need a generator to make the frequencies.
2nd you need an amplifier to break the speakers.

You will probably learn the hard way not to operate a tweeter anywhere near its max power for longer than a moment.
You will also probably learn the hard way that the voice-coil of a woofer that reaches over-excursion makes a big noise as it hammers itself against the magnet's structure.

 

[akg]

1st you need a generator to make the frequencies.
2nd you need an amplifier to break the speakers.

U also need very good earplugs before u test .
("I want to make a speaker or similar which causes discomfort ")