Can Sound Waves at 1100Hz Be Received and Emitted Effectively?

[callumbrad128]

Hopefully i am not wasting anyones time, as i don't know a lot about sound waves etc.. but i was wondering if anyone could help. Is there such a thing that receives sound waves of around 1100hz. maybe a sound receiver and emmitter? I have tried finding as much infomation online, but there is limited results. I know this may not be the 'normal type of question' but any info would help massively.

 

[mgb_phys]

Is there such a thing that receives sound waves of around 1100hz.

Your ear, a microphone, a brick wall?
Every object receives sound waves that reach it - not all of them do anything except absorb them.
Do you want to detect 1100hz sound, detect only this frequency, block only this frequency or what?

 

[callumbrad128]

Sorry, there was no clarity in what I was asking! But yer basically Is there a device that only picks up this frequency/only picks up this frequency and above! And displays in whichever means possible(a gragh, by a light bulb, etc...) if this frequency is heard!

 

[mgb_phys]

A tuning fork would respond to only one frequency (or at least a narrow band of frequencies )
The easiest way is a microphone and either a computer and some software to pull out just that one frequency, or you can do it with an analog electronics filter.
This is what the graphic equiliser on a hifi does.

 

[FredGarvin]

Many hand held acoustic analyzers will do what you are looking for as well. They will pick up all frequencies up to a certain limit and will have customizable displays that you can tailor to whatever you are looking for.

 

[Bob S]

Hello Callumbrad-
Here in thumbnail is a simple 1-opamp tuned narrowband amplifier that can be used with a microphone [STRIKE]or loudspeaker[/STRIKE] input. Voltage source V2 in circuit is a 1-millivolt signal that is swept from 500 Hz to 2000 Hz. The output signal is maximim at 1100 Hz, with an amplitude of 200 millivolts.
[added] It is straight forward to ad an op-amp that lights a LED if the sound signal level exceeds a threshold at the output of this circuit.
[added2] The LT1014 is equivalent to the LM324.
Bob S