more fundamentalism

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michaelab said:
He was responding to your question of "how can we recognize a friend's voice through the phone so easily?". The answer is because all the necessary information for that is in the 300Hz to 4kHz range.

Michael.
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But that was precisely what I've said in the first place with the exception that I should have said 5kHz bandwith instead of 2kHz.

From a frequency point of view we, in fact, have the necessary information for voice recognizement, so what is missing for voices to be real?
 
BerylliumDust said:
so what is missing for voices to be real?
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The rest of the frequency spectrum of course :rolleyes: . There's a big difference between a voice sounding like real life and one you can recognize and understand perfectly. If all humans needed hearing for was to be able to talk to each other then our hearing would probably be limited to the narrow 4-5kHz bandwidth necessary for that. However, hearing evolved to be better than that for reasons which have nothing to do with voice communication.

Michael.
 
That's not actually what he said. He said 300Hz to 4kHz is the useful range for voice recognition and speech.

I'm now extremely bored of this thread :banghead:
 
dan_britton.jpg

Dan Britton

Born on January 12, 1958 in Bloomfield, Indiana, he was raised on a farm, the same one his parents still call home, along with two sisters and three brothers. It was a musical family, frequently singing at local events and at church. After high school, Dan and his brothers began touring up north where they became the top draw in many casinos and show rooms.

Dan set his first world's record for the lowest bass note ever sung in 1984. Twice since then he has exceeded his own record. In 1998 he sang some eight notes lower than the piano has keys for the television show, World Record Breakers. His vocal accomplishments have been recorded in the Guinness Book of World Records several times. Today, Dan enjoys life in Branson with his wife Jana and their three children, Seth, Lucas and Hunter.
 
LiloLee said:
In 1998 he sang some eight notes lower than the piano has keys for the television show, World Record Breakers.
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Ye gods. If they're talking about a normal full-size piano then that'd be down to 17Hz :yikes:
 
Get a clue BD. The ONLY REASON a voice (or anything else) sounds the way it does through a phone is because of the limited frequency bandwidth. It has absolutey fcuk all to do with anything else. What Mr V has to do with this discussion I have no idea.
 
If one was to be pedantic, one would point out that the FR across a PSTN is restricted to 3KHz. I.e. 300Hz to 3.3KHz. The reason was that this was the lowest range that was needed to ensure the users actually recognised the voice at the other end of the phone. This is by no means the total FR of human voice.

BTW, what are you guys agruing about? :confused:
 
Dev said:
If one was to be pedantic, one would point out that the FR across a PSTN is restricted to 3KHz. I.e. 300Hz to 3.3KHz. The reason was that this was the lowest range that was needed to ensure the users actually recognised the voice at the other end of the phone. This is by no means the total FR of human voice.

BTW, what are you guys agruing about? :confused:
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Dev,

I can assure you that not every voices spectrum goes from 300Hz to 4kHz, in fact some voices are very far from those limits and certainly they are in a normal conversation between two persons next to each other... still voices don't sound real (like live voices) through the phone. So, there must be something beyond the system frequency response... don't you think so?
 
BerylliumDust said:
Dev,

I can assure you that not every voices spectrum goes from 300Hz to 4kHz, in fact some voices are very far from those limits and certainly they are in a normal conversation between two persons next to each other... still voices don't sound real (like live voices) through the phone. So, there must be something beyond the system frequency response... don't you think so?
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How can you assure me when you don't appear to know yourself? I'm beginning to think that you are the living proof of why little knowledge is dangerous.:D You can't just take bits of information from here and there and quote as facts.

Anyway, as I asked earlier, what is this argument about? It seems to have change direction so many times, I'm feeling dizzy.
 
Dev said:
How can you assure me when you don't appear to know yourself? I'm beginning to think that you are the living proof of why little knowledge is dangerous.:D You can't just take bits of information from here and there and quote as facts.
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Bits of information from here???... You must be kidding me...

But I agree with you Dev you don't have to trust me... so, why don't you find for yourself?

Maybe then you can tell us the whole story...
 
BD, put up or shut up, it is for you to show us as you are the one harping on.

You are remarkably tedious and monotonous now, to the point tha the forum is plagued by your nonsense.
Get a life man!
 
BerylliumDust said:
But I agree with you Dev you don't have to trust me... so, why don't you find for yourself?

Maybe then you can tell us the whole story...
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Find out what exactly? I was only pointing out the reason for the low FR in PSTN. I don't even know what point you're trying to make. Anyway, I'm ducking out of this now. You carry on enjoying yourself.
 
BD, you can use a simple graphic equalizer to create a narrow bandwidth frequency response that, when applied to a voice will make it sound just like it does through the phone.

You have no idea what you're talking about and this thread has reached it's conclusion.

Michael.
 
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