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Step 4More info
What your basically seeing is a constant series of graphs of something like 1 to .1 milliseconds of the vibration of the music
the vertical supply pulls the beam across the screen 100 to 1000 times per second the exact frequency depends on the TV. As the beam is crossing the screen the music signal pulls it up and down effectively drawing the waveform of the audio (at 100 to 1000hz(times per second)) giving you a dynamic view of sound hopefully thats a decent explanation.
if your brave enough you could attempt to make this
http://www.electronixandmore.com/project/13.html
and get a pretty useful scientific tool from the looks of it, too much big scary circuity for me
a few ideas(no you dont have to follow this), you could use the volume potentiometer to adjust the output, build your own driver (sawtooth) if the driver circuity on the television refuses to work as it did on a color tv i tried, with a color tv possibly use a band filter and have the wave change colors depending on the frequency (see comments). if the driver circuitry refuses to work maybe a dummy load (resistor) across the horizontal drive would solve the problem(i think that was from a comment aswell). on certain tv's you may be able to twist the plastic that the deflection coils are wound on to get a horizontal line. feel free to post your own ideas in the comments
and also have fun with your oscilloscopeish audio visualizin thing
the vertical supply pulls the beam across the screen 100 to 1000 times per second the exact frequency depends on the TV. As the beam is crossing the screen the music signal pulls it up and down effectively drawing the waveform of the audio (at 100 to 1000hz(times per second)) giving you a dynamic view of sound hopefully thats a decent explanation.
if your brave enough you could attempt to make this
http://www.electronixandmore.com/project/13.html
and get a pretty useful scientific tool from the looks of it, too much big scary circuity for me
a few ideas(no you dont have to follow this), you could use the volume potentiometer to adjust the output, build your own driver (sawtooth) if the driver circuity on the television refuses to work as it did on a color tv i tried, with a color tv possibly use a band filter and have the wave change colors depending on the frequency (see comments). if the driver circuitry refuses to work maybe a dummy load (resistor) across the horizontal drive would solve the problem(i think that was from a comment aswell). on certain tv's you may be able to twist the plastic that the deflection coils are wound on to get a horizontal line. feel free to post your own ideas in the comments
and also have fun with your oscilloscopeish audio visualizin thing
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