Experiments & Demos with Sound The free software! Winscope osc251.zip 89Kb Gspec spectrum.exe 186Kb Sweepgen sweepgen.exe 83.5Kb Audacity Mb.

Slides:

Advertisements

Similar presentations

Applications of Resonance Harmonics and Beats. Beats Not that kind Not that kind This is due to the interference of two waves of similar frequencies.

Advertisements

Musical. Review String – = 2L –Frequency of overtones 1 st : 2 × fundamental frequency 2 nd : 3 × fundamental frequency 3 rd : 4 × fundamental frequency.

Beats and Music Contents: Beats Overtones and music.

IntroductionIntroduction Most musical sounds are periodic, and are composed of a collection of harmonic sine waves.Most musical sounds are periodic, and.

1 Vol. 01. p Vol. 01. p Vol. 01. p.20.

1 Vol. 03. p Vol. 03. p Vol. 03. p.21.

1 Vol. 02. p Vol. 02. p Vol. 02. p.19.

1 Vol. 03. p Vol. 03. p Vol. 03. p.16.

1 Vol. 02. p Vol. 02. p Vol. 02. p.30.

1 Vol. 03. p Vol. 03. p Vol. 03. p.35.

1 Vol. 02. p Vol. 02. p Vol. 02. p.10.

1. If this standing wave is 3.2 m long, what is the wavelength? (2.56 m)

Harmonic Series and Spectrograms 220 Hz (A3) Why do they sound different? Instrument 1 Instrument 2Sine Wave.

1 Vol. 01. p Vol. 01. p Vol. 01. p.14.

Two Source Interference Patterns Contents: Basic Concept Two Source patterns.

Beats = Some Graphs Recall what a single frequency tone sounds like Play on Sound Generator A=440 Hz. The Graph:

Chapter 12 Objectives Differentiate between the harmonic series of open and closed pipes. Calculate the harmonics of a vibrating string and of open and.

A “physical phenomenon that stimulates the sense of hearing.”

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

Physics 11 Vibrations and Waves Mr. Jean December 15 th, 2014.

An organ pipe open at both ends is 1. 5 m long

Chapter 14 Notes Vibrations and Waves. Section 14.1 Objectives Use Hooke’s law to calculate the force exerted by a spring. Calculate potential energy.

16-6 Wave Speed on a Stretched String

Superposition of waves Standing waves on a string Interference Lecture 27: Wave interference.

Standing Waves Music to my ears ? II.

Standing Waves Contents: Basic Concept Drawing standing waves Counting quarter wavelengths Calculating wavelengths.

Music, Math, and Motion with Dr. E.J. Zita & Dr. Arun Chandra The Evergreen St. College Winter week 2 Tuesday 13 Jan.2009.

Sound and Waves. medium amplitude crest trough wavelength period.

Standing Waves Contents: Basic Concept Drawing standing waves Counting quarter wavelengths Calculating wavelengths.

For a standing wave to be set up in a string there has to be two waves travelling in it. Explain what has to be the same and what has to be different about.

PHYSICS CLASS ACTIVITY. CLASS ACTIVITY: TUNING FORK FREQUENCY.

1. A pulse traveling along a bullwhip is an example of a __________ wave.

Standing Waves Contents: Basic Concept Drawing standing waves Counting quarter wavelengths Calculating wavelengths.

9 th Grade Science Chapter 12c.  Definition: ◦ Sounds used in regular pattern that is pleasing to hear  Every musical instrument has: ◦ Natural frequency:

12.7 Graphing Trigonometric Functions Day 1: Sine and Cosine.

12.7 Graphing Trigonometric Functions Day 1: Sine and Cosine.

Harmonics on the guitar Resonating air column (open ended)

PHYSICS and math OF SOUND

Physics 101: Lecture 20 Waves

PHYSICS 231 Lecture 37: standing waves,harmonics & resonances

Sound and music Contents: Sound 101 Beats Overtones and music.

DO NOW: FIND YOUR SEAT Take out the Slinky Lab from yesterday. We will go over some of the questions. DUE FRIDAY! Open your notebooks: wave calculations.

(Road to discuss harmony)

Interference When waves meet, a new wave is generated in a process called interference. Interference may create a pattern that looks jumbled Interference.

Notes 21.2: RESONANCE.

Wave interference and Beat Frequency

Constant Force (F = constant)

Phase Two quantities are in phase if they are simultaneously increasing or decreasing, eg V & I are in phase in an AC circuit Waves in phase.

Superposition of Waves

Resonance & Standing Waves

Ch. 12 Waves pgs

Standing waves review A standing wave occurs when there is constructive interference between a wave and it reflections from a boundary.

Part 3 Harmonics Standing Waves and Pitch

Now we will study Sound in detail!

Beats September 9, 2005.

Topic 10: Waves Our subtopic: Music and tubes!

5. Interference Interference – combination of waves

The Science and Electronics of Sound Beacon High School

1 If a guitar string has a fundamental frequency of 500 Hz, which one of the following frequencies can set the string into resonant vibration? (A) 250.

Waves at Boundaries.

Fundamental Frequency of a String (The First Harmonic)

Open-End Air Columns Standing Waves.

Music Examples Answers

Presentation transcript:

Experiments & Demos with Sound

The free software! Winscope osc251.zip 89Kb Gspec spectrum.exe 186Kb Sweepgen sweepgen.exe 83.5Kb Audacity 2.2Mb

What can I use it for? Wave studies in Junior Science, Senior Maths & Physics Frequency response testing Frequency content testing Harmonics Interference

Lets look at the SOUND programs Gspec Winscope Sweep Generator Audacity

Revealing Harmonics 324.9 Hz

E String slightly flat @ 324.9Hz Frequencies of notes Martin & Connor Vol 1 E String slightly flat @ 324.9Hz