Sunday, December 9, 2007
Guitars may be played acoustically, where the tone is produced by vibration of the strings and modulated by the hollow body, or they may rely on an amplifier that can electronically manipulate tone. The above clip is an example of the electric guitar being played by Tom Morello who has a distinct way of playing with multiple effects. Although it must seem like he has a dozen different pedals to make all these sounds that should be coming from a synthesizer he uses only a wah, whammy, and delay. The killswitch is important too to cut off sounds. He makes the guitar sound like anything but a guitar at some times.
I learned a bunch of other things about the guitar. And about my violin as well. Such as the bridge, to me it seemed somewhat useless. But instead the main purpose of the bridge on a guitar or violin is to transfer the vibration from the strings to the soundboard, which vibrates the air inside of the instrument, thereby amplifying the sound produced by the strings. Well thats pretty important.
Oftentimes i wish i had an electric violin to play around with the various effects. If i did i would have a violin without much of a body. It would have pickups however. Pickups are attached to a guitar/violin that detect (or "pick up") string vibrations and convert the mechanical energy of the string into electrical energy. The resultant electrical signal can then be electronically amplified. And in regards to the whammy bar, it allows me to modulate the pitch moving the bridge up and down.
Very interesting chapter on sound. Especially since its such an inescapable part of our lives. Yet, such an enjoyable part.
Sunday, December 2, 2007
Yes. Hey Joe! I love how Hendrix plays his strat upside down because he's a lefty. His strings even sound different too.
I can't wait for chapter 17 on sound. I couldn't bear rehash the simple harmonic motion that we just covered. I guess all i've got to remember is the usage of conservation of E total. Actually, we've to rememeber everything we've covered right?
Next week ill try to attempt explain different techniques and stuff using physics. Fun fun :) In the meantime however, im sick.