The Science of Guitar Arun Kumar.

Slides:

Advertisements

Similar presentations

BANJOS MUSIC 318 MINICOURSE ON PLUCKED STRING INSTRUMENTS How a Banjo Works J. Rae and T. Rossing, Proc. ISMA Banjos J. Rae (in Science of String.

Advertisements

THE NEED TO KNOW BASICS OF THE GUITAR Applied Lessons: Guitar.

Waves Tanya Liu. What is a wave? A wave is a disturbance or oscillation that is a function of space and time, involves a transfer of energy Surface wave.

A.Diederich – International University Bremen – USC – MMM – Spring 2005 Musical Instruments Howard & Angus, Chapter 4

Waves_03 1 Two sine waves travelling in opposite directions  standing wave Some animations courtesy of Dr. Dan Russell, Kettering University TRANSVERSE.

Country Music Instruments

ISAT 241 ANALYTICAL METHODS III Fall 2004 D. J. Lawrence

Acoustic Guitar Cale Medley. Brief History of Acoustic Guitar Member of stringed instrument family Most modernly used plucked string instrument along.

Physics 1251 The Science and Technology of Musical Sound Unit 2 Session 22 MWF Strings: Guitar, Harp, Piano and Harpsichord Unit 2 Session 22 MWF Strings:

Michael Morgan. Basic Info  A guitar is a wooden instrument that has a fretted neck and usually has 6 strings.  Some Guitars have four, seven, eight,

Physics of Guitars By: The Chads. Brief History of Guitars Modern guitars can be traced back to Spain; derived from the Spanish word “Guitarra.” Romans.

1 Fall 2004 Physics 3 Tu-Th Section Claudio Campagnari Lecture 2: 28 Sep Web page:

Lecture 2: Wave Phenomena II and Adding up waves.

EE2F2 - Music Technology 11. Physical Modelling Introduction Some ‘expressive instruments don’t sound very convincing when sampled Examples: wind or.

Chapter 16 Waves (I) What determines the tones of strings on a guitar?

Standing waves on a string (review) n=1,2,3... Different boundary conditions: Both ends fixed (see above) Both ends free (similar to both ends fixed )

Chapter 11 Elasticity And Periodic Motion. Goals for Chapter 11 To follow periodic motion to a study of simple harmonic motion. To solve equations of.

03 Wave Superposition Updated 2012Apr19 Dr. Bill Pezzaglia.

Lab 4: Strings Standing Waves Modes Slinky Experiments 1.Frequency of Modes 2.Pulse on Slinky Experiments with String –Computer as Driver Control 1.Finding.

String Instruments 1 Updated Nov 24, Outline A.Piano B.Guitar C.Violin D.References 2.

Harmonics. Introduction Harmonic is obtained by a method of playing stringed instruments - playing the instrument while holding a finger against the string,

Stringed Instruments (Ex. Guitars, pianos, violins)  Vibrating the string sets up a standing wave, the vibration from the string resonate the sounding.

Guitar Diagram The body of the guitar is where all the sound is generated The pickups (rock and jazz) and the soundhole (classical) allow for the sound.

1 Characteristics of Sound Waves. 2 Transverse and Longitudinal Waves Classification of waves is according to the direction of propagation. In transverse.

Chapter 15 Outline Mechanical Waves

Wave Motion. Conceptual Example: Wave and Particle Velocity Is the velocity of a wave moving along a cord the same as the velocity of a particle of a.

Lecture Outline Chapter 13 College Physics, 7 th Edition Wilson / Buffa / Lou © 2010 Pearson Education, Inc.

Sound Properties and applications 2 The Nature of Waves  A wave is a traveling disturbance  two broad classifications of waves, given how the medium.

Parts of the Guitar in Pictures.

Waves - I Chapter 16 Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

By John Duarte. Welcome to my power point on guitar mechanics!!! First of all lets talk about the parts of the guitar All the parts are the bridge, the.

Overview of Waves, Part 1 General wave properties through standing waves.

APHY201 2/3/ Resonance   Matching an object’s natural frequency with an external force   Since most objects have elastic properties, resonance.

This new bracing pattern gave better support to the saddle and bridge. The Truss Rod A metal bar that runs the length of the neck. By tightening or.

EE Audio Signals and Systems Wave Basics Kevin D. Donohue Electrical and Computer Engineering University of Kentucky.

P105 Lecture #27 visuals 20 March 2013.

The Principle of Linear Superposition and Interference Phenomena CHAPTER 17 Interference Constructive and Destructive Interference: BEATS Standing Waves:

Chapter 13 Wave Motion.

1 Transverse Standing Waves The Principle of Linear Superposition Chapter 17 Lesson 2.

Traveling Waves Standing Waves Musical Instruments Musical Instruments all work by producing standing waves. There are three types of instrument.

Sound Part II  Music What is the study of sound called?  Acoustics.

Making sounds virtual G. Karwasz, L. Gratton, E. Rajch

String Instruments General comments

5. Acoustic Guitar Usually one of the families: classical, flamenco, flattop (or folk), archtop Guitar construction: Six strings (of steel or gut) Tuned.

Wave 2012년도 1학기

String Instruments General comments

Chapter 15 Mechanical Waves © 2016 Pearson Education, Inc.

Wel- come to the guitar world

Boundary-Value Problems in Rectangular Coordinates

String Instruments General comments

Percussion Instruments

String Instruments General comments

Keyboard Instruments A. Piano

Keyboard Instruments A. Piano

String Instruments General comments

Keyboard Instruments A. Piano

Unit 10: Part 1 Waves.

Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.

MECHANICAL WAVES AND SOUND

© 2014 John Wiley & Sons, Inc. All rights reserved.

What is a wave? A wiggle through space and time

Transverse Standing Waves

Mechanical Waves A mechanical wave is a physical disturbance in an elastic medium. Consider a stone dropped into a lake. Energy is transferred from stone.

Review Section I.

Pulling it together or apart!

Wave Interactions.

CHAPTER-16 T071,T062, T061.

Waves and Sound Examples

Characteristics of Sound Waves

Presentation transcript:

The Science of Guitar Arun Kumar

Evolution of guitars

SIHTAR (Persian) Kithara (Greek) Qitar (Arabic) Guitarra (Spanish) Lute: Egyptian, Hittite, Greek, Roman, Turkish, Chinese, and other cultures. Ancient Egyptian tomb painting depicting lute players, 18th Dynasty (c.1350 BC). Hellenistic banquet scene from 1st Century AD, Hadda, Gandhara. Lute player far right Renaissance lute (holding position). http://www.riffinteractive.com/browse.aspx?intro=wolfmarshall/history-of-the-electric-guitar

T.D. Rossing: Center for Computer Research in Music and Acoustics (CCRMA), Stanford University

Classification Acoustic Electric Electric-Acoustic

Types of acoustic guitars

Types of electric guitars

Component design

Mechanism of sound generation Direct sound (small fraction)

Transverse waves on a string T - String tension m - String linear density c - Wave propagation velocity Governing Equation Nature of functions is arbitrary (eg. Sinusoidal or Impulsive waves of different shapes) General solution

Superposition of wave pulses Plucked strings

Time analysis of string motion

Classical guitar: Typical frequency spectrum

Vibration Modes of the body Top plate Bottom plate

Other vibration modes

Resonant Frequencies Holographic interferograms of classical guitar at several resonant frequencies Q is a measure of resonance sharpness

Influence of design and construction Bridge: Strongest influence on sound quality (followed by top plate thickness and struts) Mass vs. Stiffening Lower frequencies Higher frequencies

Influence of design and construction Lattice bracing of top plate Struts thickest at bridge, tapering away further Carbon fiber epoxy structs

Influence of design and construction Examples of Radial Asymmetric Bracing Ramirez (Spain) Fleta (Spain) Eban (USA) Holographic interferograms in radially braced strut design (Eban)

Materials of construction Neck: Mahogany or Rosewood Reinforcing steel rod through the length Top plate: Spruce or Redwood Ribs/Struts: Rosewood or similar hardwood Cedar, Pine, Mahogany, Ash, Elder, Maple: Popular Choices Synthetic materials also in vogue: Fibre glass, polymers But considered inferior in general

Bending of rosewood sheets for the guitar side B.C.Bennet, Economic Botany, 70(1), 2016, pp. 49–63

B.C.Bennet, Economic Botany, 70(1), 2016, pp. 49–63

Mechanism of sound generation Direct sound (small fraction)

Electric Guitars

Electric Guitars – typical wiring diagram Piezzo electric pick-up

Aesthetics in design Math Product Design Architecture Physics Chemistry Objectivity Biology Medicine Psychology Fine Arts Subjectivity

In summary…. Guitar is a sophisticated, precision engineered product Needs to meet complex technical requirements based on sound scientific principles Sound output Craftsmanship Precision Durability And aesthetics Visual appeal Touch and feel Quality of sound