Search results “Harmonics of signals”

Signal and System: Harmonics and LTI System
Topics Discussed:
1. Meaning of harmonics
2. Harmonics in the output of nonlinear systems
3. Harmonics in the output of time-variant systems
4. Harmonics in the output of linear time-invariant systems
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Music:
Axol x Alex Skrindo - You [NCS Release]

Views: 8393
Neso Academy

As President of the Recording Institute of Detroit, these videos are meant as educational content on different subjects.

Views: 18213
Daniel Dennis

Harmonics, What are they? Why do I care and how can I solve? Low Voltage drive Senior Application Engineer Jeff Fell discusses what cause harmonics and what kinds of problems can they cause? Learn about this important issue and how to solve the problems. This 36 minute education video will walk you through definitions to solutions.
Click here to download the presentation Harmonics: What are they, why do I care, how do I solve? at https://goo.gl/0gSRLz

Views: 137635
ABB Drives US

this videos deals with basic definition, causes, types and effects of harmonics in electrical system.
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Views: 37820
brain amplifier

This video (by request) explains the harmonic content of a squarewave signal. It shows that a square wave is composed of a sinewave at the fundamental frequency of the square wave, plus additional sinewaves at the odd harmonic frequencies. The magnitude of the harmonic components is inversely proportional to the harmonic order. The more odd harmonics added, the faster the rising/falling edges are. These concepts are shown graphically as well as practically on an oscilloscope and spectrum analyzer.

Views: 21127
w2aew

Overtones are the basic building block of sound. Come and learn how to construct sounds at http://www.synthschool.com
This video is about additive synthesis, and how sounds can be constructed by pure sine waves. If you are a musician or sound engineer, this video is a must for you!
On our site there is also a download for the harmonic explorer, which is the device used to create this video. so you can explore for yourself!

Views: 330237
SynthSchool

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There is a lot to talk about with Harmonic Minor but we have to start somewhere! It is a great exotic sounding scale and I suggest you begin by getting familiar with the shape on guitar (or your instrument of choice) and also start to try recognizing the unique feeling it provides.
From there, we can begin our next lesson, which will be writing chords in Harmonic Minor, which will lead us into writing actual songs in different genres.
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Free online guitar lessons for beginners, intermediate, and advanced players. Located in Crystal Lake, Jake Lizzio provides free jam tracks and video lessons for guitar players, as well as music theory videos and other music education content.

Views: 38732
Signals Music Studio

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COMMUNICATION SYSTEMS: BANDWIDTH OF SIGNAL: In a communication system, the message signal can be voice, music, picture or computer data. Each of these signals has different ranges of frequencies. The type of communication system needed for a given signal depends on the band of frequencies which is considered essential for the communication process. For speech signals, frequency range 300 Hz to 3100 Hz is considered adequate. Therefore speech signal requires a bandwidth of 2800 Hz 3100 hertz – 300 hertz for commercial telephonic communication. To transmit music, an approximate bandwidth of 20 kHz is required because of the high frequencies produced by the musical instruments. The audible range of frequencies extends from 20 Hz to 20 kHz. Video signals for transmission of pictures require about 4.2 MHz of bandwidth. A TV signal contains both voice and picture and is usually allocated 6 MHz of bandwidth for transmission.In the preceeding paragraph, we have considered only analog signals. Digital signals are in the form of rectangular waves as shown in Figure. However, for practical purposes, the contribution from higher harmonics can be neglected, thus limiting the bandwidth. As a result, received waves are a distorted version of the transmitted one. If the bandwidth is large enough to accommodate a few harmonics, the information is not lost and the rectangular signal is more or less recovered. This is so because the higher the harmonic, less is its contribution to the wave form.

Views: 121927
7activestudio

http://bit.ly/2NwjhGH
In this video, you will learn how to perform a Harmonics Test using the Fluke 435 Power Quality Analyzer.
To access the Harmonics Test function on the Fluke 435 Power Quality Analyzer, simply activate the start menu and select "Harmonics" with the arrow keys to start the test. Most harmonics are measured in amperage, so be sure to select the amps option with the "F1" button.
To view the signals on your Fluke 435, press the "Scope" button. In this view, you have the flexibility in displaying signals of harmonics in either a 3 phase or a single phase view.
To access "Meter" view, select "F3" on the Fluke 435. In this view, you can view your data in numerical values. If you select F3 again, you can also track trends of equipment performance in a strip chart-type recording.
One thing to note, the events counter is always active. So even during a harmonics test or any other test, the Fluke 435 can still detect other voltage events.
The Fluke 435 Series II Power Analyzer is designed for users who need to get to the solution of the power quality problem as quickly as possible so that you can minimize expensive downtime. With features such as the Energy Loss Calculator, PowerWave Data Capture and AutoTrend, this gives you the power to quickly describe overall power quality health while giving you the detailed information you need to make better maintenance decisions.
Data can be quickly accessed as simple digital values, trend graphs that give you fast insight into changes over time, waveforms, phase or diagrams that are organized into tabular format such as the event data where the magnitude, duration and time stamping enable rapid correlation to the problems you are experiencing in your facility.
For more information about the Fluke 435 Series II Power Quality Analyzer, visit the Fluke Website: http://bit.ly/2NwjhGH

Views: 33829
Fluke Corporation

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In this video I explain how a spectrum analyser (Tektronix MDO3000) can be used to view signals in the frequency domain vs an oscilloscope's time domain.
I give an overview of the logarithmic scale and its benefits vs a linear scale.
I explain how compound wave forms like square and triangle are made up of harmonics.
I do a practical demonstration of how the spectrum analyser works with some example signals. I then show how this can also be done on an oscilloscope using the FFT (fast Fourier transform) maths function.
* how to use a spectrum analyzer
#136: What is a dB, dBm, dBu, dBc, etc. on a Spectrum Analyzer? by Alan / w2aew
https://www.youtube.com/watch?v=1mulRI-EZ80
Video on the basics of RBW: https://www.youtube.com/watch?v=Ffhs9Ny03lM Here's my video on the basics of using the FFT function on a scope: https://www.youtube.com/watch?v=oRf-IpG6XAw
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Music clip from Youtube Music Library - Phase Three by Huma-Huma
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Views: 73680
mjlorton

This video deals with all the details regarding behaviour of odd harmonics in electrical system.
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Views: 11026
brain amplifier

http://physics-animations.com/Physics/English/harm_txt.htm#Imp20
Sum of the first 20 harmonics of periodical signal, which consists of rectangular impulses with relative duration equal to 4.

Views: 504
Alexander C

Join Exploratorium scientist Ron Hipschman at a live webcast where he'll investigate sound waves, interference, beats, and harmonics. What is sound? How high a pitch can you hear? Can two sounds add up to no sound? Explore these questions and more in this resonant presentation.
In this dynamic series, Exploratorium scientist Ron Hipschman covers different aspects of physics, including sound, color, heat and temperature, and electrostatics.
To learn more about Full Spectrum Science, please visit:
http://www.exploratorium.edu/visit/calendar/full-spectrum-science

Views: 29248
Exploratorium

This MATLAB-GUI helps you to analyze the change over time of significant frequencies with a FFT-analysis.
For more information have a look at Matlab File Exchange.

Views: 6063
KnappeFranz

A quick introduction to diagnosing looseness

Views: 39272
LUDECAINC

Views: 672
telobarsik

Signal and System: Introduction to Fourier Series
Topics Discussed:
1. What is Fourier Series?
2. Use of Fourier Series
3. Difference between Fourier Series and Fourier Transform
4. Revision of periodic signals
5. Harmonics
6. Different types of Fourier Series Expansion
Signal & System: https://goo.gl/spqKtg
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#SignalAndSystemByNeso
Music:
Axol x Alex Skrindo - You [NCS Release]
Image of Joseph Fourier: https://commons.wikimedia.org/wiki/File:Fourier2.jpg#/media/File:Fourier2.jpg

Views: 140564
Neso Academy

http://www.keysight.com/find/PXA
Watch as an Keysight engineer makes a harmonics measurement using the Keysight PXA signal analyzer's list sweep mode and built-in one-button harmonic distortion measurement. This video shows how a correctly set up PXA can make a measurement in ~200 ms (including data transfer time). This is an unusual selection of harmonics frequencies, which forces the PXA to switch bands at every harmonic. For the most common harmonic measurement, the Keysight PXA has a standard function that automatically measures the first 10 harmonics.

Views: 931
Keysight Spec Analyzer

http://www.audiomasterclass.com - A comparison between square waves and sine waves of various frequencies, displayed on an oscilloscope, with commentary.
TRANSCRIPT
I am going to demonstrate the difference in sound texture between a square wave and a sine wave, and show how they become subjectively increasingly similar at higher frequencies.
I'll play a signal that alternates between square wave and sine wave, starting at 100 Hz. You will hear the difference clearly.
As you can hear, the square wave has a very much brighter and harsher tone, compared to the sine wave, which is very smooth. The levels have been set to the same RMS values, so that both waveforms should be subjectively equally loud.
Now I will increase the frequency to 1000 Hz, or 1 kHz. As I continue to increase the frequency I will adjust the timebase control of the oscilloscope so that you can see the shapes of the waveforms clearly.
At 1 kHz the square wave and the sine wave still sound very different to each other. I will increase the frequency in 1 kHz steps...
2 kHz
3 kHz
4 kHz
At this point you will probably start to hear both waveforms as being very similar, apart from a small difference in level that I will explain in a moment. Let's move more quickly through the frequency range...
6 kHz
8 kHz
10 kHz
12 kHz
At this point, both waveforms sound pretty much identical. The reason for this is that the brightness of the square wave is caused by its harmonics. Where a sine wave only has one frequency component - its fundamental - the square wave has the fundamental and harmonics at whole odd-number multiples of the fundamental frequency. So in a 100 Hz square wave, you hear frequency components of 100 Hz, 300 Hz, 500 Hz, 700 Hz, and so on all the way up the frequency band, as you can see in this spectrogram.
When we get to a fundamental frequency of 4 kHz however, the next frequency component, which we call the second harmonic is at 12 kHz. Many people can't hear frequencies as high as this. At a fundamental frequency of 8 kHz, the second harmonic is at 24 kHz, which hardly anyone is capable of hearing. It is also worth saying that digital audio sampled at 44.1 kHz which is common can't reproduce 24 kHz either. A sampling rate of 96 kHz was used to make the original recordings here to show on the oscilloscope, to allow a margin of safety.
So, as the frequency increases, the harmonics of the square wave become inaudible, leaving only the fundamental, so at a high enough frequency it sounds exactly the same as a sine wave.
Finally, let me explain the slight differences in level. Well, if the harmonic components of the square wave are being lost at very high frequencies, the overall level will therefore be a little lower.
You might also notice some ringing in the square wave signal. This is probably being created by filtering in the digital-to-analog convertor. The ringing frequency is around 46 kHz, so it is well above the audio band. The oscilloscope, by the way, is specified up to 20 MHz, so we can expect it to be completely clean in the audio band.
In summary, at increasing frequencies, a square wave begins to sound more and more like a sine wave.

Views: 164689
Audio Masterclass

In this episode we're going to take a look at the harmonic content of sounds. What are the harmonics exactly?
Also we talk about harmonic distortion which is generated by the components in analogue equipment. We perform a test by running a sine-wave through a tube-compressor to experience the harmonic distortion.
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Views: 96524
wickiemedia

This video is second in the series of the 11:11 Sacred Geometry Meditations provided through the Archangel Group Uriel. This beautiful and powerful piece brings together the angelic song of crystal singing bowls, the heartbeat of native drumming and the aboriginal message of didgeridoo with the vibrational messages and DNA codex hidden within the Sacred Art. Truly a journey of abundance... Enjoy!

Views: 229143
SunWoman1111

A simple lesson on chart reading and how to identify advanced patterns.
https://uk.tradingview.com/u/Barka/#published-charts
http://www.myfxbook.com/members/Bajaks247/barka-j-yabwa/1790512
www.tradewithme.co.uk/signals/

Views: 33776
Joseph Yabwa

Ask questions directly here:
https://www.simor.org/user/1723/saul-remi_hernandez/rooms/1723-fourier-series/posts
Joseph Fourier developed a method for modeling any function with a combination of sine and cosine functions. You can graph this with your calculator easily and watch the modeling in action. Make sure you're in radian mode and let c=1:
f(x) = 4/(pi)*sin(x) + 4/(3pi)*sin(3x) + 4/(5pi)*sin(5x) + 4/(7pi)*sin(7x) + 4/(9pi)*sin(9x) + 4/(11pi)*sin(11x)

Views: 883225
Saul Remi

This Physics video tutorial explains the concept of standing waves on a string. It shows you how to calculate the fundamental frequency and any additional harmonics or overtones. In addition, it shows you how to identify and count the number of nodes and antinodes on a standing wave given the number of loops. This video contains plenty of examples and physics practice problems.
Here is a list of topics:
1. Standing Waves on a String
2. Number of Loops - Length of String vs Wavelength
3. Trough vs Crest
4. Tension Force, Wave Speed, and Linear Density of String / Wire
5. Frequency, Wavelength, and Wave Speed Calculations
6. Fundamental Frequency, Harmonics and Overtone Problems
7. Nodes and Antinodes - Physics

Views: 69414
The Organic Chemistry Tutor

The DG800 and DG900 allows you to generate up to 8 Harmonics of the base signal. Simple setup and configuration lets you quickly produce harmonic signals to generate complex RF environments or inject system noise.
DG800 Series Product Page: https://www.rigolna.com/products/waveform-generators/dg800/
DG900 Series Product Page: https://www.rigolna.com/products/waveform-generators/dg900/

Views: 107
RigolTech

Get a Free Trial: https://goo.gl/C2Y9A5
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Evaluate power quality within networks under various conditions using SimPowerSystems™. Automate calculation of total harmonic distortion (THD).To Learn more about SimPowerSystems, visit: http://www.mathworks.com/products/simpower/

Views: 30333
MATLAB

http://www.keysight.com/find/PXA
Watch as an Keysight engineer makes a harmonics measurement using the Keysight PXA signal analyzer's list sweep mode and built-in one-button harmonic distortion measurement. This video shows how a correctly set up PXA can make a measurement in ~200 ms (including data transfer time). This is an unusual selection of harmonics frequencies, which forces the PXA to switch bands at every harmonic. For the most common harmonic measurement, the Keysight PXA has a standard function that automatically measures the first 10 harmonics.

Views: 122
Keysight Technologies, Inc.

Learn about harmonic distortions to protect your power quality and system equipment with our VP of engineer Craig Hartman.
Shop VFDs here: http://www.vfds.com/
Shop VFD accessories here: http://www.vfds.com/index.php?route=product/search&search=line%20reactor
Subscribe for more educational videos!

Views: 40261
VFDs.com

http://alienspacesciencenews.wordpress.com/
7b97z48 100 videos there are more videos after this one
i'll post all then update the #.
Math Equation Wow Seti 1977 radio signal alien
Wow SETI 1977 radio signal alien
11/111/1/1/14=0.0071
Google 0.0071
Wavelets lasers spheres harmonics higgs electric magnetic field for a UFO space communications device. several videos in this formula along with keyword research.
To be filmed 13 sept 2013
Sept 13 2013
Previous video
Line 22 7b97z47d Helmholtz Coils Laplace Spherical Harmonics Higgs Formula 5g WOW SETI
My thoughts:
While looking at the wavelet data, this came to mind that we can use these algorithms to transform our waveform signals into the higgs boson signals. Not sure how yet, but that's what I'm told by... (AIRL? - UFO Roswell Mexico 1947 alien in crash.)
Quotes wiki:
The Fast Wavelet Transform is
a mathematical algorithm designed to turn a waveform or signal in the time domain into a sequence of coefficients based on an orthogonal basis of small finite waves, or wavelets.
Google to find images and quotes from blogs:
http://www.biomedcentral.com/1471-2105/9/449/figure/F7?highres=y
Quotes diagrams wiki:
Keyword Dirac comb
Next video

Views: 149
theideagirlsays

Tutorial video for ECE 201 Intro to Signal Analysis

Views: 12643
ProfKathleenWage

In this video I try to show a little bit of the theory behind the method of tuning a guitar with harmonics. I start off with a signal generator sending two identical 440Hz signals (that's an A played on the 5th fret of the 1st string) to an amplifier. You hear a nice clear concert-A, as you would expect. On the oscilloscope, the red trace shows the sum of the two signals. Then I shift the frequency of one of the signals slightly sharp to 441Hz. Now you can hear the "phasing" effect that you are listening for when you are tuning a guitar: the sound fades in and out. On the oscilloscope you can see why: the red trace (remember, that's the sum of the two signals) now alternates between being a good strong signal and disappearing completely. This happens at about 1Hz because this is the difference between the two frequencies.

Views: 226
emcgon

A short tutorial video on how the Fourier Transform works. The video is designed for those who know what a Fourier Transform is but need to understand at a basic level how it converts time domain signals into the frequency domain.

Views: 439646
kridnix

In this video, you will learn, how to find the RMS (Root Mean Square) and Average value of AC signal (or in general for any time varying signal).
What is RMS (Root Mean Square) Value:
RMS value of any time-varying signal, in general, is related to the amount of heat being produced in the circuit or across the particular element in the circuit.
This RMS value represents the effective value of the given AC signal which will produce the same amount of heat (and hence power) across particular element if it is being replaced by the DC source of equivalent value.
So, by representing any time-varying signal in RMS value we can compare it with its equivalent DC voltage.
In this video, the general equation of RMS value has been derived, which can be used to find the RMS (Root Mean Square) value of any time-varying signal.
And RMS value for AC sinusoidal signal and for full-wave rectifier circuit waveform has been derived.
What is the average value of AC signal:
Average value of an AC signal or any time-varying signal, in general, is the time average of all the instantaneous values of the signal over the particular time period of the signal.
If the signal is symmetric about the horizontal axis or X-axis (Like in case of the sine wave) then its average value over the time period will be zero. So, in such cases, the average value has been found over the half period.
In this video, the average value of sine wave and the average value for the waveform of half wave rectifier circuit has been derived.
If the signal is non-periodic then to find the average value, one needs to mention the particular time over which the average value has been found.
Form Factor and the Peak Factor:
The form factor is the ratio of RMS value and the Average value.
The peak factor is the ratio of the peak value and the RMS value.
Timestamps for the different topics in the video is given below:
0:41 What is RMS Value? why is it so important?
2:51 How to find the RMS value?
5:55 RMS value of sinusoidal AC signal
8:18 RMS value for the waveform of Full Wave Rectifier Circuit
11:22 What is an average value of AC signal
11:59 Average value of AC sinusoidal signal
13:50 RMS value for the waveform of Half Wave Rectifier Circuit
15: 17 Form Factor and Peak Factor
This video will be helpful to all students of science and engineering in understanding the concept of RMS and average value for AC signals.
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Music Credit:
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Views: 60778
ALL ABOUT ELECTRONICS

Any periodic signal can be decomposed into a set of simple oscillating functions (also known as harmonics) via the application of Fourier series expansion. Here, we demonstrate a few harmonics using circles and how they add up to obtain the resulting function. Each circle spins at a multiple of a certain fundamental frequency. First, we show each harmonic individually and later show what they add up to and how the circles can be used for their visualization.
Same visualization but for the sawtooh wave:
https://youtu.be/wNwJOBmqBsc
The code for the animation can be found at
http://www.mathworks.com/matlabcentral/fileexchange/49533-fourier-series-animation-using-harmonic-circles

Views: 103699
meyavuz

comparison of signal hound spectrum analyzer: https://signalhound.com/support/compare-our-spectrum-analyzers-and-signal-generators/
HARMONICS: A harmonic of a wave is a component frequency of the signal that is an integer multiple of the fundamental frequency, i.e. if the fundamental frequency is f, the harmonics have frequencies 2f, 3f, 4f, . . . etc

Views: 277
DT TECHSOLUTIONS PVT LTD

► Ableton Live tutorials : https://www.adsrsounds.com/category/ableton-live-tutorials/
In this video we will look at Ableton Live’s Saturator device.
Saturator is a wave-shaping effect that can add that missing dirt, punch or warmth to your sound. It can add subtle or hard harmonic distortion to input signals whatever flavour you choose.
The controls within the device give you plenty of opportunity to colour and shape the sound in a variety of ways;
As a dynamic non-linear distortion/waveshaper/analog drive simulation effect.
Controlling transients and peaks or limit the dynamic range and in the process add extra harmonics.
Make a sound louder without adding amplitude.
Adding subtle warming - soft clipping to a signal or extreme overdrive hard clipping
Glueing elements together.
Harmonic Distortion, presence, more upfront sound.
Like, favourite and subscribe to support ADSR.
-- ADSR --
Facebook : https://www.facebook.com/ADSRSounds
Presets, Samples & Loops : http://www.adsrsounds.com

Views: 5560
ADSR Music Production Tutorials

VFD switching frequency refers to the rate at which the DC bus voltage is switched on and off during the pulse width modulation (PWM) process.
Harmonic distortion occurs when a VFD converts power from an AC to a variable frequency output to a motor. The harmonics occur as the transistors rapidly turn on and off at a rapid speed. Harmonic distortion in a drive can be reduced by increasing the speed the at which the IGBTs operate to get a cleaner sine wave for better motor operation.
► Learn more about VFD Switching Frequency:
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Views: 282
Design World

This demonstration video is to introduce the harmonic signal generator of AFG-3032. Harmonic signal generator simulates the harmonic signal of switching power supplies and conducts characteristics tests on EMI power filter. Users can set order number and phase for harmonic signals to obtain desired signals.

Views: 366
gwinstek1975

http://video-demos.colostate.edu
Demonstration of the physics of guitar string harmonics and chords.
Many more video demonstrations of engineering and physics principles and devices can be found at:
http://video-demos.colostate.edu

Views: 18845
DrDaveBilliards

This video takes it back to basics and explains what harmonic saturation devices are doing to your signal in the audio domain.

Views: 5445
The Recording Lounge

Inspired by the harmonic patterns behind light, electromagnetism, and sound, this album is the first installment of the Solfeggio Harmonics Sound Healing Project. This sound healing experience leads you through the nine principle solfeggio tones – tones derived from a form of mysticism that uses modular 9 arithmetic. These vibratory healing journeys will interest alternative healers, meditators and ambient music lovers.
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Download Solfeggio Harmonics Vol. 1: https://www.sourcevibrations.com/product/download-solfeggio-harmonics-vol-1/
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All music, art and video are original works by Source Vibrations. Copyright © Source Vibrations. All Rights Reserved.

Views: 1765363
Source Vibrations

See all Video Tips of the Week shot every Friday at http://proaudiodvds.com/category/videos/

Views: 1803
ProAudioDVDs

This video (by request) takes a look at making signal amplitude and distortion measurements on an oscilloscope and a spectrum analyzer. It runs through a quick example of measuring the signal amplitude on the scope in volts peak-to-peak, then converting this measurement to dBm and verifying that this is what is measured on the spectrum analyzer. The importance of maintaining a common load impedance for these measurements is discussed. The second half of the video discusses distortion measurements, and what you can and cannot see on a scope compared to a spectrum analyzer. It shows that while a scope is really good at making amplitude measurements (and can be used to measure frequency as shown in a previous video), it isn't necessarily the best tool to measure distortion at levels that are required to meet FCC Part 97 Emission requirements for amateur radio use.

Views: 36951
w2aew

Oscilloscope Music Tutorial 4
Topics:
- Harmonic oscillation (example: pendulum)
- Phase difference between sine and cosine
- Construction of sine and cosine with the unit circle
- Harmonics / Overtones
- Additive synthesis with sine-cosine-combinations
Sorry for the potato quality; my good camera is ̶ d̶̶e̶̶d̶̶.̶ alive again!
Tutorials playlist: https://www.youtube.com/playlist?list=PLFgoUhNvMLro45P9uuR18wofljEaVCfvV
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Additional technical information:
Oscillation: https://en.wikipedia.org/wiki/Oscillation
Sine & Cosine: https://en.wikipedia.org/wiki/Sine
Harmonics / Overtones: https://en.wikipedia.org/wiki/Harmonic
Additive Synthesis from a more technical point of view: https://en.wikipedia.org/wiki/Additive_synthesis
-----
PURE DATA
(Open source audio programming software, used for the demonstrations in this tutorial)
Website with lots of resources: http://puredata.info
Purr Data (the distribution I'm using in the video): https://agraef.github.io/purr-data
FLOSS Manual: http://write.flossmanuals.net/pure-data/introduction2
Pd patches from this video: https://oscilloscopemusic.com/puredata.php#tutorial4
Nuclear Black Noise patch: https://oscilloscopemusic.com/puredata.php#nuclearblacknoise
Something similar in Max for Live: http://oscilloscopemusic.com/maxforlive.php#sincos4001
-----
Music at 6:05: Nuclear Black Noise (https://www.youtube.com/watch?v=YqSvkNjWnnQ)
Special thanks to Liam 🐱
Website: http://oscilloscopemusic.com

Views: 28477
Jerobeam Fenderson

Check out this video showing the key essentials about how to use a spectrum analyser: controls, operation, examples . . . and some top tips from industry experts.
The video provides an excellent introduction to the spectrum analyzer. It looks at what it is and why it is different to an oscilloscope – looking at signals in the frequency domain rather than the time domain.
Basic settings and controls on the spectrum analyzer are described along with their function: gain, RF attenuator, centre frequency, bandwidth. The way in which these may be used is detailed along with showing how they affect the visible output on the spectrum analyzer.
Examples of an amplitude modulated signal along with much more complex waveforms are used.
Some more advanced functions on the spectrum analyzer are shown including markers and present function: phase noise and spectral masks that make some complicated measurements much easier to use on the analyzer. Using a spectrum analyzer to measure harmonics and other spurious emissions is also covered.
Finally some top practical hints and tips from industry experts are given.
This video gives an essential guide to the use of a spectrum analyser. It shows how to use the analyser for common and more advanced measurements.
More details about how to use a spectrum analyser and what the controls do can be found here: https://www.electronics-notes.com/articles/test-methods/spectrum-analyzer/how-to-use-spectrum-analyzer-operation.php
Website: https://www.electronics-notes.com
Don't forget to subscribe to our channel: https://www.youtube.com/channel/UCj5v6V19CtjoeFzuiiEQpRg

Views: 60468
ElectronicsNotes

Music: Jonathan Goldman Harmonic Revelation, The Divine Name
Visuals: Jonathan Quintin

Views: 13233
Jonathan Goldman

Tony and Ian from Tektronix present a FFT Tutorial (Fast Fourier Transform) covering what is FFT, an explanation of the FFT function as well as different FFT applications. They explain how the FFT works with a FFT example and show an oscilloscope demo to demonstrate how helpful the FFT can be.
What is FFT?
In the video, "How to Use an Oscilloscope" (http://youtu.be/tzndcBJu-Ns), an oscilloscope was used to look at a single sine wave. But when you connect an oscilloscope to a live circuit, you rarely see something so simple. On real projects, you're usually looking at combinations of signals. The FFT lets you break down the data you've captured and see what it's made of.
FFT Example
One FFT example is when you want to understand your own signal. If you're designing a circuit board, and you attach your oscilloscope probe at the antenna, you're expecting the signal at the antenna to be at the frequency you designed it for.
What you actually see is an extra signal. That extra signal is at a different frequency, and it's one you didn't expect to see. You'll notice you can't see it on the regular oscilloscope display before the FFT because it's 1/1000th the amplitude of the signal you're expecting.
In the video FFT example, the cause is likely harmonic distortion since it's a multiple of the frequency we're expecting. If it were an exact multiple of some known clock board, then the likely cause would be cross-talk.
How FFT Works
The FFT helps you see what kinds of signals are present in your system. Specifically, it breaks down your complicated signal into separate sine waves. Any signal at all can be thought of as the sum of different sine waves (the Fourier Transform). The oscilloscope's FFT, or Fast Fourier Transform, is just one method of performing this operation.
FFT Applications
Most oscilloscopes have a FFT built into their math system these days. In the oscilloscope featured in the video, you just press Math and then turn on the FFT option. Then you can set various properties of the analysis, like the frequency range you want to look at.
In the video example, you can see that same series of frequency-domain spikes stretching out. This is kind of a pared-down version of what you'd see on a spectrum analyzer. If you wanted something more like a real spectrum analyzer, you could use a mixed domain oscilloscope with a dedicated RF channel.
The mixed domain oscilloscope in the video shows a FFT of the signal from a completely separate input. The idea is that you use the regular analog channels to look at the various signals on your board, and use the RF channel to see what's actually coming out of your antenna port.
For more FFT Information go to: www.tek.com/fft-basics
Also, keep an eye out for the next video in this series, covering a FFT example where the FFT function is used to measure musical signals in front of a live audience.

Views: 488449
Tektronix

Jon Hopkins - Immunity
Label: Domino Records - WIGCD298
Country: UK
Released: 02 Jun 2013
Genre: Electronic
Style: Tehcno,Ambient,Experimental
http://www.dominorecordco.com/uk/albums/25-02-13/immunity
I do not take any credit for these tracks or pictures involved, all tracks & pictures are courtesy of their rightful owners & them only! If you are the owner of any of this content and want it removed, contact me directly. NO INFRINGEMENT OF COPYRIGHT IS INTENDED! For promotional use only. Please support all artists!Thank you!

Views: 36099
Kaiyum [Terra Soundscapes]

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Pool Accessary Options. Types of Pool Water Sanitation. There are a variety of pool water treatment options beyond the traditional chlorine, although it remains the most popular option. Chlorine is added to a pool to combat algae or other bacteria that can gather in the water. Chlorinated water relies on a proper pH balance to prevent an overly chemical-smelling pool. While saline pools, also known as saltwater pools, are not chlorine-free, they consist of a salt-chlorine generator that produces lower levels of chlorine. Mineral water pools are chlorine-free and use disinfecting minerals to prevent bacteria and algae. Pool Maintenance.