Thursday, November 22, 2012

Chords for Winter Wonderland for Ukulele

http://www.ukulele-tabs.com/uke-songs/traditional/winter-wonderland-uke-tab-13124.html

Making My Ukulele!


1. Sketch the parts needed for the body.


2. Use an electric saw to cut the wood.
 

3. Use wood glue to build the body.
4. Drill 4 holes on the tip. After this, insert the tuning pegs.
5. Insert the strings on the tuning pegs. Use 4 nails on the the bridge, these nails should not be fully pressed down because it'll be used for the strings.
6. Use toothpicks to make the fretboard. After this tie the strings on the nails properly and tune it.

-Christian Encarnacion









Sunday, November 18, 2012

Bass Guitar Audio Circuit

Bass Guitar Pickup circuit to be able to connect to an amplifier
-Pete Dominguez

PVC Marimba Data

PVC Marimba Data
I don't plan on making this anymore due to cost and material management
-Pete Dominguez

Sunday, November 11, 2012

Trumpet Materials

* clear vinyl tubing 
* funnel 
* mouthpiece 
optional: drill (for making holes) Duct tape

(once the trumpet is done, this is basically what it's going to look like. However, the tube will be much longer with accurate measurements)
*This was just an experiment to get the hang of it and see if it would actually work*




Saturday, November 10, 2012

11/10/12 Group Research

Today, I decided on the two main materials I will use for my flute. Either I use PVC plastic or bamboo as the body for the flute. I will make the holes on the flute with 1/2" diameter so that it wouldn't be too small or to large. On my research, 1/2" diameter is the most used on homemade flutes so I will experiment with this size for now and see what my results would be.

How a trumpet works

http://www.angelfire.com/band/vhstrumpets/pages/how.html

  •  Mouthpiece- player blows and vibrates their lips to make a sound 
  • Valves- control the flow of air in different directions (affects the trumpet's pitch) 
  • --> once air leaves the valve area, it travels through the tubing towards the funnel (amplifies and resonates the sound) 
  • *sound exits through the funnel and sound is refined* 
  • Pipe- shorter, higher sounds; lengthened, lower pitch 
 Playing:
1) steam - without blowing, no sound will be produced
2) lips - it has to vibrate quickly in a circular position
3) position of lips - tight/loose (create different pitches)
Vibration - higher notes, lips are tighter and opening is very small - lowr notes, lips are more loose and relaxed ( vibrates more slowly )

 http://www.h2g2.com/approved_entry/A9567723 

  • Tube length is inversely proportional to the wave length 
  •  Standard length of a trumpet is 148 cm 
  • Frequency is 170 Hz - 1K 
  •  Tube length = speed of sound divided by (2 x frequency) + tube diameter divided by 2 (Speed of sound is 13150.270)

Wednesday, November 7, 2012

Ukulele protoype

Materials:
rubber band
spoon handle
index card
tape

It makes sounds but doesn't have all the parts of a ukulele.

Sunday, November 4, 2012

The Physics of the Trumpet

Research:
http://library.thinkquest.org/10693/physics.html

How a trumpet makes a sound:

  • Remember: All sounds are made of waves and for any wave to start, there has to be a source of vibration.
  • In a trumpet, the vibrations that occur to make a sound has to come from the player's lips vibrationg at a high speed. Also known as "buzzing the mouthpiece."
  • Wave travels down the length of the tubing and once it reaches the end of the funnel, it travels back up to the mouthpiece and forms a "node" in the end of the bell, producing a standing wave. (In physics, a standing wave doesn't go anywhere, it just sits there and vibrate up and down in place. A node is a region where the disturbance of the wave is quite small, almost zero).


PVC Trumpet


Materials: 
  • PVC Tube
  • funnel (fits tube but not too tightly)
  • mouthpiece
  • drill (to make holes); or valves (if preferred)
  • Tape, clay (or any preferred material to put connect the tubes together)
  • cutting instrument (scissors, knife, etc)