i need to find a way to amplify a dog whistle or a way to create the sound with a farther reach than your average dog whistle. Someone i know is having a problem so i told them i would see what i could do..lol

blow harder

...yea i thought of that one already but thank you for your input ....lol

try blowing the whistle into a bull horn...but not sure if a bullhorn can handle the frequency

the average dog whistle frequency is between 16k and 22K hz. If a bull horn can handle that, then I think you are golden

Dog whistle frequency = 16000 Hz to 22000 Hz

You can download clips and play it through whatever you need

air compresser?

X2 on the bullhorn , or you could use just the large horn to amplify and direct the whistle

Exactly

Must've been one of those smoke circle ideas

I think you might run into an issue getting something to reproduce and amplify a signal that high in the spectrum at the levels your are asking.

amplify a horn of some sort. Like a compression horn.

Here is something fun to listen to,,,it is like someone drilling into your brain,,, drives dogs and teenagers nuts,,,, http://www.pinoyhack.com/2006/09/04/sound-attention-buzz/

piezo bullet tweeter and either a tone generator or file with a small amp and 12v battery.

i am not smoking anything.. i got a phone call from someone that is having dog issues and they asked me... so i figured that i would ask everyone on here.... we have a tone generator to make the sound.... just need to find something to play the sound.

Just use a higher end pro Audio Mic to record the sound. I doubt a dog whistle is a pure tone, so you will need a recording to get the harminics. Then just play it though a nice PA system. Most folded horn tweets will be able to throw it a good way with about 100 watts

I don't think the smaller peizeo (sp?) will get it far enough. Take a look at Carvin or EV for their folded horn PA drivers...I also doubt the smaller vocal sized PA's would do it.

Most of what I see you guys are offering is not made to reproduce frequencies over 20k. Most P.A. are not even made to go over 20k or over human hearing.

If they are having issues with their dog, then train the dog, don't look for a way to cause it pain.

its not their dog i am guessing... i think it might be a couple neighbors down from their house... a typical dog whistle only has a span i guess of about fifty feet or so.... well that is what i heard

here's one, up to 27Khz and it's $.50...get 12.
http://www.parts-express.com/pe/showdetl.cfm?Partnumber=272-300

i bet a dog whistle does produce some wicked harmonics and might not be easy to reproduce.

sweet thank you