How is voice transmitted thru the phone wire when we talk?

Question

physicaly

Answer 1

On an analog system, voice is converted to sine-wave signals thru the transmitter which is basically a microphone. On the other end, these signals are reproduced by the receiver which is a speaker. On a digital line, voice is converted to a 0and1 bit train. These can be transmitted over copper, fiber optic or microwave. Look up digital electronics and it will give you a better idea.

Answer 2

good question but better question how does it work through freaken cell phone?! dont you think it would get lost somewher huh

Answer 3

Your voice is a vibration of air molecules. In the mouthpiece of your phone that is directly converted to an electrical signal. On an analog line (twisted coper pair of wires), your call is an established circuit from your house, through the local switch, over more copper networks, to the destination's local network. So there is a (temporarily) dedicated line of copper wire at each end, where maybe the call has been converted to some other form in between.

At the receiving phone, the signal is reversed to air vibrations in the speaker, just like in your stereo system.

For VoIP (Voice over Internet Protocol), there are more layers of software involved, and the call is split into small packets, which can lead to small lags and bursts at the receiving end, usually too small for you to notice.

Answer 4

there is power on line it is  low voltage.

E

Answer 5

The sound vibrations are converted into electricity via a diaphram and magnet, I think.  The sounds vibrates the diaphram which is inside a magnetic field, or something.