speakers

[vyse933]

this possibly should be in misc. but oh well. i have a quistion regarding how speakers work. what i do know, is that the speakers cone going back and forth is what creates certain pitches and sounds. what i'm wondering is, how does a speakers increase volume? does it go back and forth faster? or does it go back and forth farther? and how does the speaker change the pitch? and also...how the hell can one speaker create various sounds and pitches?

 

[billfitzmaurice]

how does a speakers increase volume?

By moving further.

and how does the speaker change the pitch?

By moving at a different speed. That's a vast simplification, but there's not enough room here for a thorough explanation. There are many books on the subject, though.

how the hell can one speaker create various sounds and pitches?

The same way your ears can hear them. A driver is pretty much an eardrum in reverse.

 

[Trevorus]

this possibly should be in misc. but oh well. i have a quistion regarding how speakers work. what i do know, is that the speakers cone going back and forth is what creates certain pitches and sounds. what i'm wondering is, how does a speakers increase volume? does it go back and forth faster? or does it go back and forth farther? and how does the speaker change the pitch? and also...how the hell can one speaker create various sounds and pitches?

Volume is related to the amount of air compression the speaker creates, that means the cone moves farther. As far as frequency, the faster the speaker moves, the higher the frequency. A speaker reproduces a waveform. If you have ever seen a wave on a meter, it has peaks and valleys, and that represents how the speaker moves. But if you see what a musical waveform looks like, it's a much rougher waveform. The interaction of all the frequencies make one signal waveform. That complex wave is how the speaker moves.

 

[vyse933]

By moving further.

By moving at a different speed. That's a vast simplification, but there's not enough room here for a thorough explanation. There are many books on the subject, though.

The same way your ears can hear them. A driver is pretty much an eardrum in reverse.

you answered my first two quistions (thank you) but i don't understand the ear drum thing..because i don't know how an eardrum works. would anyone care to explain?

 

[billfitzmaurice]

you answered my first two quistions (thank you) but i don't understand the ear drum thing..because i don't know how an eardrum works. would anyone care to explain?

Your eardrum receives vibrations from the air, which it transfers via small bones to a liquid in a chamber in the inner ear, where the vibrations are converted into electical impulses that are sent to the brain for decoding. A device that transforms mechanical motion into electrical energy, or vis-versa, is called a transducer. A driver, also a transducer, works in the same fashion, but in reverse, converting electical impulses from the amplifier into mechanical vibration of the cone, which imparts those vibrations to the air for transmission to your eardrums.

And that's why you shouldn't sleep through biology and physics classes.

 

[vyse933]

Your eardrum receives vibrations from the air, which it transfers via small bones to a liquid in a chamber in the inner ear, where the vibrations are converted into electical impulses that are sent to the brain for decoding. A device that transforms mechanical motion into electrical energy, or vis-versa, is called a transducer. A driver, also a transducer, works in the same fashion, but in reverse, converting electical impulses from the amplifier into mechanical vibration of the cone, which imparts those vibrations to the air for transmission to your eardrums.

And that's why you shouldn't sleep through biology and physics classes.

haha. alright so i know how an ear drum works. but what i was refering to is when lets say, you have a 1x15 speaker cabinet for example. and when your playing, you play your E sting and A string open at the same time. how can the speaker create the pitch E, and A at the same time if it's only one speaker?

 

[billfitzmaurice]

haha. alright so i know how an ear drum works. but what i was refering to is when lets say, you have a 1x15 speaker cabinet for example. and when your playing, you play your E sting and A string open at the same time. how can the speaker create the pitch E, and A at the same time if it's only one speaker?

The two notes combine to form a more complex waveform that contains information from both. That's what the speaker plays and that's what your ears hear. Playing two notes at the same time is a pretty simple task when you consider how many simultaneous tones are contained in a recording.

 

[Ste_m3]

its one of those very much you gotta accept whats given to you things im afraid. Unless you can get your head around every minor complexity its best not to think about it to much!
as said before forget bass for a second, and think how many different waves are going through a hi-fi when your playing a classical piece? you can have hundred pluss piece orchestras, each instrument will have a different wave line but all you hear is one symphony. you dig?

Quick note, sorry for any incorrect terminology. Consider it dummy to dummy advice!

 

[vyse933]

The two notes combine to form a more complex waveform that contains information from both. That's what the speaker plays and that's what your ears hear. Playing two notes at the same time is a pretty simple task when you consider how many simultaneous tones are contained in a recording.

oh. i get it. thanks!