I need to measure the frequency of various sound waves. May I know what is the best method/instrument for it.
This article helps to measure the frequency in lab setting
Depends on the frequency range of interest and the environment you want to take measurement in. You need to be more specific.
@ Joachim,
I had thought the same, but what if Rahul has to take measurements in sea environment or similar difficult settings. I guess more information is needed.
I am planning to measure the frequency of various sound signals generated in less noisy areas.
But in lab setting, under water, in solids, earth sediments, outdoor? Where? if it is just for fun purpose, then Joachim's idea is good enough.
Just introduce piesoelectric transducer into sound wave and hoock oscilometer to the transducer.
@ Vikas pandey. Thank you Sir. I would like to measure the frequency in lab setting
Rahul,
I'm with Jerry. An oscilloscope is what you need.
Note, to make measurements of anything other than simply the frequency, you'll need to calibrate the transducer as well.
To do that is not so easy (calibrated microphones, sig gens, etc.) - but frequency?
Piece of cake.
If your specimen is not too sophisticated, you need simply a smart phone + Audacious/MatLab/SciLab/Mathematica/Python/Any other suitable software.
I suppose you are measuring aerial propagation. To do this, we use a low frequency microphone in the sonometer. It has an excellent performance since 0,8 Hz.
It's very easy to response.... it's the famous Frequency meter....
I came late to this question, however introducing an answer to it may be useful for other researchers. If your sound wave is single tone then you can use frequency counter which is a standard laboratory instrument.
If your signal is natural sound having complex waveform then you need to analyse the waveform into its frequency components and then you have to use spectrum analyzer that gives you the amplitude versus frequency of the sound. In stead of the spectrum analyzer you can use digital storage oscilloscope which has signal processing capability such as the fast Fourier transform of the recorded signal in a limited time window.
There is other methods based on using a DAQ card and a PC or LAPTOP.
to build virtual digital oscilloscope.
Best wishes
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