how to convert the human sound into a group of frequencies

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shimaa_2006

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plz i want to convert a human voice to frequencies

if any body know how to do this plz send tha way and the used program
 

Re: how to convert the human sound into a group of frequenci

if u are familair using matlab .

then i will give the instruction how to do .?

thank u kanti rao.
 

Re: how to convert the human sound into a group of frequenci

first thank u for reply
second yes i am familier with matlab,actually i didnt say that i want the way to do this in matlab to see if there is any other programs capable to this task

and can i have the duration of each frequency as well



thank u for ur effort
 

could be done by FFT...by chosing suitably large value of N
 

other than FFT u can also use a filter bank to split up into bands
refer psychoacoustic model
 

Re: how to convert the human sound into a group of frequenci

rsrinivas said:
other than FFT u can also use a filter bank to split up into bands
refer psychoacoustic model
Click to expand...


Thats right . FFT is a costly process , instead using a wave digital filter will be wise decision. But here the voice must be transformed to freq domain. To do this efficiently.

voice->lowpass (fc=8khz)-> downsample(4:1)-> so a radix4 real FFT = smaller freq domian representation .
 

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