Tuning the Harp with a Tuner and By
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Sound Sensor Experiment Guide
Sound Sensor Experiment Guide Sound Sensor Introduction: Part of the Eisco series of hand held sensors, the sound sensor allows students to record and graph data in experiments on the go. This sensor has two modes of operation. In slow mode it can be used to measure sound-pressure level in decibels. In fast mode it can display waveforms of different sound sources such as tuning forks and wind-chimes so that period and frequency can be determined. With two sound sensors, the velocity of propagation of sound in various media could be determined by timing a pulse travelling between them. The sound sensor is located in a plastic box accessible to the atmosphere via a hole in its side. Sensor Specs: Range: 0 - 110 dB | 0.1 dB resolution | 100 max sample rate Activity – Viewing Sound Waves with a Tuning Fork General Background: Sound waves when transmitted through gases, such as air, travel as longitudinal waves. Longitudinal waves are sometimes also called compression waves as they are waves of alternating compression and rarefaction of the intermediary travel medium. The sound is carried by regions of alternating pressure deviations from the equilibrium pressure. The range of frequencies that are audible by human ears is about 20 – 20,000 Hz. Sounds that have a single pitch have a repeating waveform of a single frequency. The tuning forks used in this activity have frequencies around 400 Hz, thus the period of the compression wave (the duration of one cycle of the wave) that carries the sound is about 2.5 seconds in duration, and has a wavelength of 66 cm. -
Fftuner Basic Instructions. (For Chrome Or Firefox, Not
FFTuner basic instructions. (for Chrome or Firefox, not IE) A) Overview B) Graphical User Interface elements defined C) Measuring inharmonicity of a string D) Demonstration of just and equal temperament scales E) Basic tuning sequence F) Tuning hardware and techniques G) Guitars H) Drums I) Disclaimer A) Overview Why FFTuner (piano)? There are many excellent piano-tuning applications available (both for free and for charge). This one is designed to also demonstrate a little music theory (and physics for the ‘engineer’ in all of us). It displays and helps interpret the full audio spectra produced when striking a piano key, including its harmonics. Since it does not lock in on the primary note struck (like many other tuners do), you can tune the interval between two keys by examining the spectral regions where their harmonics should overlap in frequency. You can also clearly see (and measure) the inharmonicity driving ‘stretch’ tuning (where the spacing of real-string harmonics is not constant, but increases with higher harmonics). The tuning sequence described here effectively incorporates your piano’s specific inharmonicity directly, key by key, (and makes it visually clear why choices have to be made). You can also use a (very) simple calculated stretch if desired. Other tuner apps have pre-defined stretch curves available (or record keys and then algorithmically calculate their own). Some are much more sophisticated indeed! B) Graphical User Interface elements defined A) Complete interface. Green: Fast Fourier Transform of microphone input (linear display in this case) Yellow: Left fundamental and harmonics (dotted lines) up to output frequency (dashed line). -
TOPIC 1.3: Sound
TOPIC 1.3: Sound Students will be able to: S3P-1-17 Investigate to analyze and explain how sounds are produced, transmitted, and detected, using examples from nature and technology. Examples: production of sound by a vibrating object, drums, guitar strings, cricket, hummingbird, dolphin, piezocrystal, speakers… S3P-1-18 Use the decision-making process to analyze an issue related to noise in the environment. Examples: sonic boom, traffic noise, concert halls, loudspeakers, leaf blowers… S3P-1-19 Design, construct (or assemble), test, and demonstrate a technological device to produce, transmit, and/or control sound waves for a useful purpose. Examples: sound barrier or protective headphones to reduce the effects of noise, electromagnetic speakers, echo chamber, microphone, musical instruments, guitar pickup, electronic tuner, sonar detector, anechoic chamber, communication devices… S3P-1-20 Describe and explain in qualitative terms what happens when sound waves interact (interfere) with one another. Include: production of beats S3P-1-21 Experiment to analyze the principle of resonance and identify the conditions required for resonance to occur. Include: open- and closed-column resonant lengths S3P-1-22 Experiment to calculate the speed of sound in air. S3P-1-23 Compare the speed of sound in different media, and explain how the type of media and temperature affect the speed of sound. S3P-1-24 Explain the Doppler effect, and predict in qualitative terms the frequency change that will occur for a stationary and a moving observer. S3P-1-25 Define the decibel scale qualitatively, and give examples of sounds at various levels. S3P-1-26 Describe the diverse applications of sound waves in medical devices, and evaluate the contribution to our health and safety of sound-wave- based technologies. -
Fully Automated Guitar Tuner
Fully Automated Guitar Tuner ECE 445 Final Report Benjamin Wang, Brandon Ramos, Cooper Ge Team 71 TA: Vassily Petrov 5/8/20 1 Abstract The problem we chose to address is that tuning guitars is a time consuming and undesirable task for guitar players of all levels. When tuning by ear, it is extremely hard to find the right pitch. The original solution was similar to current commercial tuners; it told you the closest approximate pitch and graphically indicated how sharp or flat you were. Our new solution is an all-in-one tuning solution with minimal user input. Rather than just displaying the input graphically, our device will automatically handle both strumming and tuning to mechanically tune the guitar. The main improvement is convenience for the user. 2 Table of Contents Abstract 1 Table of Contents 2 1 Second Project Motivation 3 1.1 Problem Statement 3 1.2 Solution 3 1.3 High-Level Requirements 3 1.4 Visual Aid 4 1.5 Block Diagram 4 2. Second Project Implementation 6 2.1 Physical Design 6 2.1.1 Physical Design Implementation 6 2.1.2 Physical Design Implementation Analysis 7 2.2 Algorithm 8 2.2.1 Background 8 2.2.2 Algorithm Summary 9 2.2.3 Testing Results 11 Figure 2.2.3.1 Testing Results 1 11 2.2.4 Algorithm Improvements 11 Figure 2.2.4.1 Testing Results 2 12 2.3 Control Logic 12 Figure 2.3.2 Control Logic Pseudocode 13 2.4 Microcontroller 13 2.5 Audio System 14 2.5.1 Audio System Implementation 14 2.5.2 Audio System Implementation Analysis 14 2.6 Bill of Materials and Cost 15 3 Second Project Conclusions 17 3.1 Implementation Summary 17 3.1.1 Algorithm Implementation 17 3.2 Unknowns, Uncertainties and Testing Needed 18 3.3 Safety and Ethics 18 3.4 Project Improvements 19 4 Progress made on First Project 20 5 References 21 3 1 Second Project Motivation 1.1 Problem Statement It’s an unfortunate fact of life that guitars fall out of tune over time. -
Tuning Forks As Time Travel Machines: Pitch Standardisation and Historicism for ”Sonic Things”: Special Issue of Sound Studies Fanny Gribenski
Tuning forks as time travel machines: Pitch standardisation and historicism For ”Sonic Things”: Special issue of Sound Studies Fanny Gribenski To cite this version: Fanny Gribenski. Tuning forks as time travel machines: Pitch standardisation and historicism For ”Sonic Things”: Special issue of Sound Studies. Sound Studies: An Interdisciplinary Journal, Taylor & Francis Online, 2020. hal-03005009 HAL Id: hal-03005009 https://hal.archives-ouvertes.fr/hal-03005009 Submitted on 13 Nov 2020 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Tuning forks as time travel machines: Pitch standardisation and historicism Fanny Gribenski CNRS / IRCAM, Paris For “Sonic Things”: Special issue of Sound Studies Biographical note: Fanny Gribenski is a Research Scholar at the Centre National de la Recherche Scientifique and IRCAM, in Paris. She studied musicology and history at the École Normale Supérieure of Lyon, the Paris Conservatory, and the École des hautes études en sciences sociales. She obtained her PhD in 2015 with a dissertation on the history of concert life in nineteenth-century French churches, which served as the basis for her first book, L’Église comme lieu de concert. Pratiques musicales et usages de l’espace (1830– 1905) (Arles: Actes Sud / Palazzetto Bru Zane, 2019). -
Pedagogical Practices Related to the Ability to Discern and Correct
Florida State University Libraries Electronic Theses, Treatises and Dissertations The Graduate School 2014 Pedagogical Practices Related to the Ability to Discern and Correct Intonation Errors: An Evaluation of Current Practices, Expectations, and a Model for Instruction Ryan Vincent Scherber Follow this and additional works at the FSU Digital Library. For more information, please contact [email protected] FLORIDA STATE UNIVERSITY COLLEGE OF MUSIC PEDAGOGICAL PRACTICES RELATED TO THE ABILITY TO DISCERN AND CORRECT INTONATION ERRORS: AN EVALUATION OF CURRENT PRACTICES, EXPECTATIONS, AND A MODEL FOR INSTRUCTION By RYAN VINCENT SCHERBER A Dissertation submitted to the College of Music in partial fulfillment of the requirements for the degree of Doctor of Philosophy Degree Awarded: Summer Semester, 2014 Ryan V. Scherber defended this dissertation on June 18, 2014. The members of the supervisory committee were: William Fredrickson Professor Directing Dissertation Alexander Jimenez University Representative John Geringer Committee Member Patrick Dunnigan Committee Member Clifford Madsen Committee Member The Graduate School has verified and approved the above-named committee members, and certifies that the dissertation has been approved in accordance with university requirements. ii For Mary Scherber, a selfless individual to whom I owe much. iii ACKNOWLEDGEMENTS The completion of this journey would not have been possible without the care and support of my family, mentors, colleagues, and friends. Your support and encouragement have proven invaluable throughout this process and I feel privileged to have earned your kindness and assistance. To Dr. William Fredrickson, I extend my deepest and most sincere gratitude. You have been a remarkable inspiration during my time at FSU and I will be eternally thankful for the opportunity to have worked closely with you. -
Hammered Dulcimer Owners Guide.Indd
H D O’ G Dusty Strings Company Founded in 1978, Dusty Strings is a company of dedicated instrument build- ers whose love of wood, fi ne craftsmanship, and music results in some of the fi nest hammered dulcimers and harps available. We invite you to write or call us any time with questions you may have, or simply to let us know about yourself and your dulcimer. We hope your Dusty Strings hammered dulcimer will provide you with many years of musical enjoyment. © 1998 Dusty Strings 3450 16th Ave. W. • Seattle, WA 98119 • (866) 634-1656 www.dustystrings.com Contents Introduction and History .......................................................................................1 Anatomy of the Hammered Dulcimer ....................................................................2 Maintenance and Care of Your Dulcimer ............................................................... 2 String Maintenance .........................................................................................2 String Types .................................................................................................... 3 Replacing Broken Strings ................................................................................ 3 Restringing the Whole Dulcimer..................................................................... 4 String Buzzes ...................................................................................................4 Finish ..............................................................................................................5 General -
The Tuning Fork: an Amazing Acoustics Apparatus
FEATURED ARTICLE The Tuning Fork: An Amazing Acoustics Apparatus Daniel A. Russell It seems like such a simple device: a U-shaped piece of metal and Helmholtz resonators were two of the most impor- with a stem to hold it; a simple mechanical object that, when tant items of equipment in an acoustics laboratory. In 1834, struck lightly, produces a single-frequency pure tone. And Johann Scheibler, a silk manufacturer without a scientific yet, this simple appearance is deceptive because a tuning background, created a tonometer, a set of precisely tuned fork exhibits several complicated vibroacoustic phenomena. resonators (in this case tuning forks, although others used A tuning fork vibrates with several symmetrical and asym- Helmholtz resonators) used to determine the frequency of metrical flexural bending modes; it exhibits the nonlinear another sound, essentially a mechanical frequency ana- phenomenon of integer harmonics for large-amplitude lyzer. Scheibler’s tonometer consisted of 56 tuning forks, displacements; and the stem oscillates at the octave of the spanning the octave from A3 220 Hz to A4 440 Hz in steps fundamental frequency of the tines even though the tines of 4 Hz (Helmholtz, 1885, p. 441); he achieved this accu- have no octave component. A tuning fork radiates sound as racy by modifying each fork until it produced exactly 4 a linear quadrupole source, with a distinct transition from beats per second with the preceding fork in the set. At the a complicated near-field to a simpler far-field radiation pat- 1876 Philadelphia Centennial Exposition, Rudolph Koenig, tern. This transition from near field to far field can be seen the premier manufacturer of acoustics apparatus during in the directivity patterns, time-averaged vector intensity, the second half of the nineteenth century, displayed his and the phase relationship between pressure and particle Grand Tonometer with 692 precision tuning forks ranging velocity. -
Good Vibrations (Part 1 of 2): [Adapted from NASA’S Museum in a Box]
National Aeronautics and Space Administration Good Vibrations (Part 1 of 2): [Adapted from NASA’s Museum in a Box] What is it? The transfer of energy from one material to another can be measured in different ways. One that you may not initially think of is sound. Sound can be good, as it allows us to communicate and interact with our surroundings, but sound can also cause disturbance. For example, aircraft noise can be quite loud and cause disturbance in neighborhoods. Scientists and engineers are working hard to reduce these sounds in different ways. In this activity, students will interact with tuning forks to learn about sound. This activity discusses topics related to National Science Education Standards: 4-PS4-3: Generate and compare multiple solutions that use patterns to transfer information. - This activity uses two different models to “see” sound waves, and covers discussions of the transfer of information from one material to another through waves. Materials (per team of 4 to 8 students): Equipment, provided by NASA: - Set of 4 Tuning Forks - Ping pong ball with attached string Equipment, not provided by NASA: - Container of Water (plastic food storage container would work well) - Soft item for activating tuning forks (book spine works well) Materials (per student): Printables: - Tuning Fork Worksheet Artifact included in this kit: - Fluid Mechanics Lab “Dimple Car” and Information Sheet Recommended Speakers from Ames: Please note that our Speakers Bureau program is voluntary and we cannot guarantee the availability of any speaker. To request a speaker, please visit http://speakers.grc.nasa.gov. www.nasa.gov 1 Dean Kontinos (Hypervelocity Air and Space Vehicles) Ernie Fretter (Arc-Jet, Re-entry Materials) Mark Mallinson (Space, Satellites, Moon, Shuttle Technology) Set-Up Recommendations: - Prepare copies of the Tuning Fork Worksheet. -
1 Basic Tuning for the Autoharp Introduction Setting the Foundation
Basic Tuning for the Autoharp There are many options in tuning, especially for an autoharp. The more experienced player has learned that there are different tuning possibilities in addition to what is referred to as "standard" tuning. However, the beginner should understand and employ the basics, especially when expecting to play with other instruments in a jam. It is simply not true that all other instruments use purely "standard" tuning, but in a group situation, virtually all players depend upon various devices which provide or measure a standard reference pitch. The autoharper's life is easiest when owning and using an electronic tuner. However, there are more traditional methods for obtaining satisfactory results, in the absence of an electronic tuner and special expertise. A pitch pipe, tuning fork, or other instrument already "in tune" are useful references to obtain the foundation pitch(s) for autoharp tuning. In this attempt to provide a method for tuning we will provide two approaches. The first will be a basic guide to using an electronic tuner. The second will be a method for tuning by ear with a reference pitch. Introduction The typical autoharp has 36 or 37 strings with a pitch range of 3 octaves plus a fifth interval. For example, the standard chromatic autoharp starts on F for the lowest note and ranges to C at the highest note. The "middle" octave is the principal melody octave around which most arrangements are built. This octave should be tuned first as the "foundation" for all other octaves. The middle octave begins at 2-3 strings above the corner at the tuning pin end, where the strings become progressively shorter. -
Catalogo 2017.Pdf
ACCESSORIESWOODWINDS DESIGNED FOR MUSICIANS BY MUSICIANS At D’Addario, our favorite word is “innovation,” and we live and breathe it every day. We love when we have one of those moments that make us ask, why hasn’t anybody done this sooner? One problem we continually struggled to solve was getting a strap onto acoustic guitars with end-pin jacks. We knew there had to be a better way, so we set out to find it—enter the Acoustic CinchFit. The CinchFit loops through the end of any instrument strap and eliminates the need to modify your strap, providing added security to make attaching and removing the strap a “cinch.” The CinchFit’s magnetic clamping action allows easy application as well as removal and utilizes the weight of the instrument to remain locked onto the end-pin so your guitar is always held securely…problem solved. Over the years, we’ve also added many innovative advancements to the electronic tuner market. This year, we take our technology back to the basics with our release of the Eclipse Tuner—a high- priced tuner in performance at a low-cost price point. Available in six colors, these tuners feature an intuitive vertical display with two swivel points for limitless positioning on any instrument. The display’s 360-degree rotation also allows it to be used by left- and right-handed musicians and mounted on the front or discretely behind the headstock. Lastly, to complement our newest innovations, this year we welcome the return of The Beatles picks and straps. Once again, we are offering our top-selling woven and vegan straps along with picks in 10-packs and commemorative tins. -
18Th Century Quotations Relating to J.S. Bach's Temperament
18 th century quotations relating to J.S. Bach’s temperament Written by Willem Kroesbergen and assisted by Andrew Cruickshank, Cape Town, October 2015 (updated 2nd version, 1 st version November 2013) Introduction: In 1850 the Bach-Gesellschaft was formed with the purpose of publishing the complete works of Johann Sebastian Bach (1685-1750) as part of the centenary celebration of Bach’s death. The collected works, without editorial additions, became known as the Bach- Gesellschaft-Ausgabe. After the formation of the Bach-Gesellschaft, during 1873, Philip Spitta (1841-1894) published his biography of Bach.1 In this biography Spitta wrote that Bach used equal temperament 2. In other words, by the late 19 th century, it was assumed by one of the more important writers on Bach that Bach used equal temperament. During the 20 th century, after the rediscovery of various kinds of historical temperaments, it became generally accepted that Bach did not use equal temperament. This theory was mainly based on the fact that Bach titled his collection of 24 preludes and fugues of 1722 as ‘Das wohltemperirte Clavier’, traditionally translated as the ‘Well-Tempered Clavier’ . Based on the title, it was assumed during the 20 th century that an unequal temperament was implied – equating the term ‘well-tempered’ with the notion of some form of unequal temperament. But, are we sure that it was Bach’s intention to use an unequal temperament for his 24 preludes and fugues? The German word for ‘wohl-temperiert’ is synonymous with ‘gut- temperiert’ which in turn translates directly to ‘good tempered’.