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How Does The Brain Pick Out Different Noises When It Only Hears One Tone At A Time

Why does my voice sound beautiful when I sing, but when recorded, it sounds horrible?

An element worth noting in all of this is that you may be tuning your voice to what you're hearing, rather than to the acoustic of the room. When you sing, a certain percentage of the sound that you hear in real time is heard through bone, which can distort things. You may need to retrain your singing to ignore the effect of the bone, because it could be throwing you off.There's a cool trick that I love for doing this without having to record yourself all the time. Put your hand on each side up to the tragus of your ear (that little cartilage flap that's right on top of the ear opening) on each side. Put your hand there in the same position as though you were karate chopping, if that makes sense (but, obviously, gently). Then curve your fingers so that they outline the rest of your ear. You should look kind of like you're giving yourself Mickey Mouse ears if you're doing it right. Now try to speak. And try to sing, for that matter. Your voice should sound different but not THAT different. This is a pretty good approximation of what you sound like to people who aren't you. It's also a useful tool for where you should be recording your voice. Walk into a recording studio that you're thinking about using (or a room you're thinking of recording in), and try this out. If you don't feel good about the acoustic, record somewhere else!

Hearing Pokemon music that isn't there?

This happens to me too. I played Pokemon kind of obsessively as a kid. Occasionally I go through phases of playing again and it comes back - in the morning, at night, at school, when I'm eating, all the time. Even when I haven't played for ages, sometimes I still get it in my head, I know it's not real but it sounds much realer than when I just think of a song or something. Does it actually sound real to you though, like it's coming from somewhere around you? If it does that's probably not good, you should go see a doctor or psychologist.
This is kind of an extreme suggestion but you might be having auditory hallucinations... Do you sleep enough? Take any kind of drugs or medication with side effects? Are you paranoid at all?
Hope that helped a bit. You're probably not crazy :) I quite like it when it happens to me...

I hear my name being called when I'm listening to music?

I don't think I'm crazy or have any mental issues but I keep hearing my name being called when I listen to music. I know that I listen to my music louder than I should, so if that has anything to do with it, I'll stop. But it happens when I have both headphones in and suddenly I hear a voice yell my name. Today it sounded so real and loud that I asked my brother if he had called me. He said no, but I got mad at him because I thought he was playing a trick on me. He continued to deny it and even seemed confused that I was so sure it was him.

This tends to happen a lot actually, but it was always a female voice which sounded like my mom, and it especially happened when she wasn't home.

Now I listen to my music with only one headphone in because I'm afraid that it will happen again.
Does this happen to anyone else or just me? And what could be causing it. I'm not crazy or schizophrenic, I swear.

Help! Every time i burp, i hear a ringing sound in my ears. Its only when i burp though.?

any sort of sound produced internally in the ear is called tinnitus,your case is no exception.however,because there's a world of difference between causes,i can't put my finger on your case,i can only rough it out if it can put you in the picture.
tinnitus is a puzzling disease.generally,people who had tried to dig into the cause often turn out making neither head nor tail of it and come to grief.to eradicate tinnitus,your best bet is to keep to the suggestion to the letter and take it on board.
1.don't use headphones.
2.avoid the noise over 70 db.
3.clean earwax regularly.
4.intake enough b12 and iron.
5.keep a jolly mood.

How do you hear multiple frequencies at once?

The speaker produces what is called a complex wave. There is only one cone position and only one instantaneous sound pressure level at any given time. But Joseph Fourier showed that a complex (periodic) wave can be expressed as the sum of pure sinusoidal waves. When we hear these complex waves, the ear can identify these sinusoidal components and it sounds like many frequencies at once.

In the picture here http://img182.imageshack.us/img182/6198/...
the dark-line wave will sound as if it is two tones played together.

It is convenient in the description of complex waves to assume that they are the sum of the Fourier components, but we should not lose sight of the fact that there really is only one wave. When a complex wave is produced by a musical instrument, we hear mainly the basic frequency (tone) and identify the pitch with that. However, there are other frequencies that combine to produce the characteristic sound (tone quality) of that instrument. These are called "overtones", and we cannot usually identify them by ear individually.

How many frequencies of sounds can the human ear pick up?

The human ear can hear between ~20Hz to 20,000 Hz.

Within the cochlea, there are thousands of tiny hair arrays, tuned to a particular frequency. As such, only certain clusters will be excited depending on the sound. In order to further improve resolution of frequencies, the involved nuerons engage in lateral inhibition; the strongest nearby signal is amplified and the weakest supressed.

Consider this:
You have two transducers, tuned with a one-tenth of a Hz difference in their tuning. If we play 5/100 of a Hz, the lower transducer will register much more strongly than the upper frequency one. Calculating the ratio will give you a very specific frequency.

Lastly, the brain is able to fool us into seeing and hearing things that just aren't there. Even if we could only hear in steps of 10 Hz, we probably would think we had perfect resolution.




A speaker can theoretically create any frequency. Of course, engineering constraints tend to subdivide speakers into specialized woofers, midrange, and tweeters. Also, the output going to the speaker, if it is from a computer, will likely be limited to 44KHz, with a fixed frequency step due to discretization.

It is possible to listen to every sound a human ear can hear in a couple of minutes. Just get a tone generator and have it sweep from 0Hz to whenever you cant hear anymore. If you mean every combination of sound, then you are more likely to name every single star in the universe.

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