how can find the frequency of human voice?

V

vasanthakumar

New Member

• Jun 9, 2006

• #1

i need to find the frequency of particuler sound.any instruments can help me to find the frequency of any sound for my projuct.give me circuits of such a instruments .plzzzzzzzzzz help me

 

Nigel Goodwin

Super Moderator

Most Helpful Member

• Jun 9, 2006

• #2

vasanthakumar said:

i need to find the frequency of particuler sound.any instruments can help me to find the frequency of any sound for my projuct.give me circuits of such a instruments .plzzzzzzzzzz help me

Click to expand...

A spectrum analyser can display the audio spectrum of a sound, most sounds are many frequencies - very few are a single frequency.

As your request is vague, it's difficult to offer any more advise?.

 

Dr.EM

New Member

• Jun 9, 2006

• #3

Yep, a frequency analyser will show the prominant frequencies in a voice, but as Nigel said, it won't be a single tone; only a sine wave has no harmonics. Generally though, you'll find the "energy" in the voice, the tone, in frequencies under 1Khz. The sibilance, "S" and "T" type sounds, take up much higher frequencies, often over 5Khz.

 

philba

New Member

• Jun 9, 2006

• #4

well, student, I suggest you look up inverse fourier transform.

 

The Mad Professor

New Member

• Jun 9, 2006

• #5

**broken link removed**

Results 1 - 10 of about 51,600,000 for frequency analyzer software. (0.47 seconds.. thanks Google

 

S

stevez

Active Member

• Jun 9, 2006

• #6

The 1994 edition of my ARRL (amateur radio) handbook has a page or two on the characteristics of the human voice. It seems to me that there is likely to be a lot of good information published on frequencies for a human voice. In reading one summary sentence it says that most of the energy in a human voice is between 300 Hz and 2,500 Hz though no comment is made on gender, singing, age, etc.

 

Oznog

Active Member

• Jun 9, 2006

• #7

A PIC can take a few mS of samples, do a Fourier transform, and show the dominant frequency. A dsPIC can probably do a Fourier transform on the fly.

Guitar tuners do a great job in analog AFAIK, but there is a much clearer dominant frequency. Voice always has a rich and unpredictable array of other frequency components.

 

mramos1

Active Member

• Jun 9, 2006

• #8

So what is this person asking to do again???

I think they need to be more clear on what they are after.

 

philba

New Member

• Jun 9, 2006

• #9

actually, his question was fairly simple. "please do my assignment for me"

 

P

Paul Obrien

Guest

• Jun 11, 2006

• #10

There quite a few soundcard frequency analyzer available, I thought,suspected, that guitar tuners were PLL circuits.

 

Nigel Goodwin

Super Moderator

Most Helpful Member

• Jun 11, 2006

• #11

Paul Obrien said:

There quite a few soundcard frequency analyzer available, I thought,suspected, that guitar tuners were PLL circuits.

Click to expand...

Guitar tuners use micro-controllers or micro-processors, PLL's would be far too restrictive and complicated.