Conductive wire and speakers/antennas

Hello.

I think any conductive wire can send and receive variable wavelength. A radio antenna and speaker wire etc.

Since piano wire is conductive, even a wire hanger can be a speaker cable, can the piano wire replace the wires to the speaker? I think I'm omitting variables in frequency, oscillation, resistance etc. But I see the speaker with two wire connections could receive sound signal, and +,- doesn't matter to make a sound.
Or this becomes possible from the radio's oscillator?

Question, will the speaker emits any sound signals that are connected? More like a noise than layered original sounds? What if two radio signals are attached to one speaker? Does +,- still matter?

Second Q,
If the radio sound signal and antenna wire is conjointed to the speaker, will both the sound and antenna signal get interfered? Which one becomes the resistent?

I have a lack of knowledge in electricity and radio wavelengths, I would like to clarify these..

Best,

I can understand your first paragraph, but not the rest - sorry. Try another explanation.

Piano wire is steel and is not as conductive as copper.

...R

Speakers don't respond to radio frequencies.

I don't think I've ever used piano wire as a conductor in any circuit. Not because it's not conductive but because it can't be bent. We use wire where we want flexible connections.

You can put many different frequencies down a wire. Music has many frequencies all at the same time. You can hear the singer and the bass guitar at the same time. You could add a radio frequency to that, but you can't hear radio frequencies so there is no point.

I think any conductive wire can send and receive variable wavelength. A radio antenna and speaker wire etc.

At audio frequencies, any wire will work. (And, if have a piano hooked to your speakers, and the wire under tension and you pluck it or strike it to make a sound, that will have no effect on the sound coming through the speaker... Mechanically vibrating the wire will have no effect on the electrical signals through it.)

Piano wire is not insulated, so you'd have to be careful not to short it out (which would kill the sound and maybe fry your amplifier).

Piano wire is steel, which has higher resistance than copper. But with short lengths (such as in your living room) the resistance wouldn't be significant.

At higher impedance (such as with a guitar output, or a line-level connection between your DVD player and receiver) noise pickup is an issue, and coaxial shielded cable is normally used.

At radio frequencies (antennas, etc.) the inductance and capacitance of the cable becomes significant. Antenna and cable TV cables are usually rated at 50 Ohms, and that's because of the inductance & capacitance. If you use that type of cable with a speaker (at audio frequencies), it acts just like normal wire (with almost no resistance).

But I see the speaker with two wire connections could receive sound signal, and +,- doesn't matter to make a sound.

Electrons flow through the wire, and they won't flow if there's a break in the wire. You need a "complete circuit", which means the electricity flows through one wire, through the speaker, and back to the source.

You need two wires to make a complete circuit... If you disconnect the + or - connection to your car battery, your car won't start...

Audio signals are AC (current rapidly reverses direction depending on the frequency). So, there isn't really a positive and negative connection. If you have one speaker and you reverse the connections you won't hear a difference.

However if you have a pair of stereo speakers and you reverse one of them, one speaker will be pushing-out while the other pulls-in... With the vibrations and sound waves out-of-phase, you'll hear a loss of bass (as the bass frequencies are canceled) and you'll get a weird "phasey-spacey" sound. That's why speakers are marked + and -. So that two (or more) speakers can work together.

I have a lack of knowledge in electricity and radio wavelengths, I would like to clarify these..

Wavelength is related to frequency and speed. (If you don't know what frequency is, look that up before researching wavelength).

Electricity travels through wires at approximately the speed of light and audio signal wavelengths are miles long. Radio frequency wavelengths are much shorter.

Sound in the air travels at about 700 miles per hour (or about 1000 feet per second) so a 1KHz sound wave has an acoustic wavelength of about 1 foot. A 100 Hz sound wave in air has a wavelength of about 10 feet.

DVDdoug, Thank you for your answers

You also can not connect two amplifier outputs to the same
speaker unless they are completely separate signals or at least
from 180 degree out of phase if they have the same information.
It has already been stated that you can not put radio frequency
into a speaker and get something meaningful out, other than
heating the speaker ( if enough energy ).
If you have two amplifier outputs and they are driven with
inverted signals and they are single ended outputs, you can
attach one end of the speaker wire to one amplifier and the
other amplifier to the other end.
It the signals contain completely different information ( not
stareo radio signals ) you don't need to worry about polarity
or phase.
I'm not sure what you are intending with piano wire? Why are
you using piano wire and what would you do with it?
It is not clear what you have in mind.
Dwight

Thank you for your response.
I know this is abstract and rudimentary idea.
I have two radios(with small speakers) switching random stations at a time with a transition using arduino and 5v, both radios' speaker wires with polarity(doesn't matter?) somewhat looped together using piano wire in distance. Then a third radio(bigger one with a bigger speaker)'s speaker wires connected to the center of piano wire loop to interfere the signal between two radios using its radio frequency, and cancel out some of the two radio's frequencies (or an overlapped sound) while the sound coming out of each radio's speaker.

Or put this differently, how to make an oscillating wavelength from the vibration of speaker in order to use it as a source of interfernece to the piano loop?

I kinda worried if this loop burns two radios' amplifiers. I am not using any extra oscillator or parts.

Should all three radios using same dc voltage and a sharing ground even the wires all connected together in the loop?

Best,

I wish no disrespect, but it is obvious that you are throwing around electronic concepts, without knowing even the most basic thing about what they mean. Have fun, but don't expect to achieve much without learning the theory behind it. Electronics is mostly concrete, not abstract. It also seems to me that your level of understanding is still below what you need to understand the replies that have been posted.

toshi:
using piano wire in distance.

I can't help feeling you are using the phrase "piano wire" incorrectly. Post a photo of the wire you are talking about.

Piano wire is high-tensile hard steel wire that is not normally used to carry electricity.

...R

Well, I am experimenting with low voltage layout and radios. I am learning because my concept aims for destructive arrays in certain situation including signal interference and receiver.
I can simplay make a switch or an arm that interferes speaker's vicinity with any conductive material and a magnet. But I am not making for a science project. And it takes some time to learn about what physics involved.

well, wire comes in different thicknesses. If you are doing anything that draws significant current, you have to be very careful that the wire you use is rated at that current, or you will probably start a fire.

I'm still not sure what you are doing but damaging a radio
or two is clearly a possibility.
Maybe some schematics of what you plan to do might
save a burnt finger or blown radio.
Dwight