Time–frequency analysis | Signal processing
A spectrogram is a visual representation of the spectrum of frequencies of a signal as it varies with time. When applied to an audio signal, spectrograms are sometimes called sonographs, voiceprints, or voicegrams. When the data are represented in a 3D plot they may be called waterfall displays. Spectrograms are used extensively in the fields of music, linguistics, sonar, radar, speech processing, seismology, and others. Spectrograms of audio can be used to identify spoken words phonetically, and to analyse the various calls of animals. A spectrogram can be generated by an optical spectrometer, a bank of band-pass filters, by Fourier transform or by a wavelet transform (in which case it is also known as a scaleogram or scalogram). A spectrogram is usually depicted as a heat map, i.e., as an image with the intensity shown by varying the colour or brightness. (Wikipedia).
Building a Nanodrop Style UV/Vis Spectrometer
Spectrometers are one of the most ubiquitous tools in most labs because an enormous amount of information about a substance can be gleaned from how it interacts with various parts of the electromagnetic spectrum. But for as common as they are, the price tag on a new spectrometer can be mas
From playlist Biology and Genetics
The Spectrogram and the Gabor Transform
Here I introduce the spectrogram, which is a moving-window Fourier transform, giving insight into the time-frequency content of a data set. Book Website: http://databookuw.com Book PDF: http://databookuw.com/databook.pdf These lectures follow Chapter 2 from: "Data-Driven Science and E
From playlist Data-Driven Science and Engineering
PHO_017 - Linguistic Micro-Lectures: Spectrograms
In this short micro-lecture, Miriam Fingerhut, one of Prof. Handke's students, presents the topic of 'spectrograms', a central issue in acoustic phonetics.
From playlist Micro-Lectures - Phonetics
Spectrophotometry and Beer's Law
We've learned about kinetics already, but how do we gather kinetic data? One clever method is by analyzing how the color of a solution changes over time, which is an indication of the concentration of certain compounds that interact with light in a specific way. This technique is called sp
From playlist General Chemistry
Multimeter Review / DMM Review / buyers guide / tutorial
A list of my multimeters can be purchased here: http://astore.amazon.com/m0711-20?_encoding=UTF8&node=5 In this video I do a review of several digital multimeters. I compare features and functionality. I explain safety features, number of digits, display count, accuracy and resolution. Th
From playlist Multimeter reviews, buyers guide and comparisons.
Quantization and Coding in A/D Conversion
http://AllSignalProcessing.com for more great signal-processing content: ad-free videos, concept/screenshot files, quizzes, MATLAB and data files. Real sampling systems use a limited number of bits to represent the samples of the signal, resulting in quantization of the signal amplitude t
From playlist Sampling and Reconstruction of Signals
Introduction to Geometer's Sketchpad: Measurements
This video demonstrates some of the measurement and calculation features of Geometer's Sketchpad.
From playlist Geometer's Sketchpad
Statistics - How to make a histogram
This example shows how to make a histogram. Remember that the horizontal axis represents the values of the variables. The vertical axis gives us the frequency of those variables. For more videos visit http://www.mysecretmathtutor.com
From playlist Statistics
Atomic Absorption Spectrometer Teardown
Teardown of an Atomic Absorption Spectrometer.
From playlist Teardowns
Live CEOing Ep 113: Language Design in Wolfram Language
Watch Stephen Wolfram and teams of developers in a live, working, language design meeting. This episode is about Language Design in the Wolfram Language.
From playlist Behind the Scenes in Real-Life Software Design
Live CEOing Ep 179: Image and Audio in Wolfram Language
Watch Stephen Wolfram and teams of developers in a live, working, language design meeting. This episode is about Image and Audio in the Wolfram Language.
From playlist Behind the Scenes in Real-Life Software Design
CDIS 4017 - Clinical Instrumentation Part 1 (done)
Chaya Guntupalli (Nanjundeswaran) Ph.D. CDIS 4017 - Speech and Hearing Science I ETSU Online Programs - http://www.etsu.edu/online
From playlist ETSU: CDIS 4017 - Speech and Hearing Science I | CosmoLearning Audiology
We discuss how to compute the spectrogram in Matlab. Book Website: http://databookuw.com Book PDF: http://databookuw.com/databook.pdf These lectures follow Chapter 2 from: "Data-Driven Science and Engineering: Machine Learning, Dynamical Systems, and Control" by Brunton and Kutz Amazo
From playlist Data-Driven Science and Engineering
This video describes how to compute the Spectrogram in Python. Book Website: http://databookuw.com Book PDF: http://databookuw.com/databook.pdf These lectures follow Chapter 2 from: "Data-Driven Science and Engineering: Machine Learning, Dynamical Systems, and Control" by Brunton and
From playlist Data-Driven Science and Engineering
End-to-End Adversarial Text-to-Speech (Paper Explained)
Text-to-speech engines are usually multi-stage pipelines that transform the signal into many intermediate representations and require supervision at each step. When trying to train TTS end-to-end, the alignment problem arises: Which text corresponds to which piece of sound? This paper uses
From playlist Papers Explained
This E-Lecture first discusses the central methods of sound analysis and then shows how spectrograms are produced and analyzed. This includes a discussion of the formant frequencies of vowels, the acoustic characteristics of consonants and the construction of an acoustic vowel chart.
From playlist VLC102 - Speech Science
Live CEOing Ep 115: Language Design in Wolfram Language
Watch Stephen Wolfram and teams of developers in a live, working, language design meeting. This episode is about Language Design in the Wolfram Language.
From playlist Behind the Scenes in Real-Life Software Design
Specular vs. Diffuse Reflection
This video tutorial lesson discusses the difference between diffuse and specular reflection. The cause of each and the resulting consequences are explained. Law of Reflection video (referenced on Slide 3) can be found at ... https://youtu.be/0Zbkt6K1kbM You can find more information that
From playlist Reflection and Mirrors
Tacotron 2 - THE BEST TEXT TO SPEECH AI YET!
In this video, I am going to talk about the new Tacotron 2- google's the text to speech system that is as close to human speech till date. If you like the video, SUBSCRIBE for more awesome content. Research paper: https://arxiv.org/pdf/1712.05884.pdf Read some of my AI answers on Quora:
From playlist Deep Learning Research Papers