Noise shaping is a technique typically used in digital audio, image, and video processing, usually in combination with dithering, as part of the process of quantization or bit-depth reduction of a digital signal. Its purpose is to increase the apparent signal-to-noise ratio of the resultant signal. It does this by altering the spectral shape of the error that is introduced by dithering and quantization; such that the noise power is at a lower level in frequency bands at which noise is considered to be less desirable and at a correspondingly higher level in bands where it is considered to be more desirable. A popular noise shaping algorithm used in image processing is known as ‘Floyd Steinberg dithering’; and many noise shaping algorithms used in audio processing are based on an ‘Absolute threshold of hearing’ model. (Wikipedia).
What is Sound? - Quickly Discover What Sound Really Is
What is Sound? This simple demonstration visually shows how sound waves are produced from a vibrating surface. A frequency generator is hooked up to a power amplifier, and the resultant signal is used to drive a loudspeaker. The signal is also sent to an oscilloscope. After listen
From playlist Physics Demonstrations
The basic principles using environmental noise from city traffic as an example are explained.
From playlist HOW IT WORKS
Acoustic engineering: The art of engineering a silent world
Have you ever woken up from your sleep because of a construction taking place near your house? It is the opposite of a soothing experience, and this situation is a kind of noise pollution. The term, also known as environmental noise or sound pollution, refers to the generation of noise t
From playlist Theory to Reality
A demonstration of an active noise reduction technique. We review passive noise management and go on to demonstrate phase-related active noise reduction.
From playlist Sound
This sound is part of a project to make music from data--also known as sonification-- in order to detect trends or other features. Read more: http://scim.ag/2tDDLYq Sound files courtesy of Mark Ballora
From playlist Materials and technology
Sound vs. Noise: What’s the Actual Difference? (Part 1 of 3)
Noise and sound are not the same thing… really, they aren’t! What exactly is noise? Part 2 of 3 - https://youtu.be/XhFhK97hrdY Part 3 of 3 - https://youtu.be/yTyYZFcxGGQ Read More: Signal-to-Noise Ratio and Why It Matters https://www.lifewire.com/signal-to-noise-ratio-3134701 “You
From playlist Seeker Plus
Waves 4_2 Sources of Musical Sounds
Problems dealing with musical sounds.
From playlist Physics - Waves
Physics - Mechanics: Sound and Sound Waves (34 of 47) Maximum Displacement in a Sound Wave
Visit http://ilectureonline.com for more math and science lectures! In this video I will show you how to calculate the maximum displacement in a sound wave.
From playlist PHYSICS MECHANICS 5: WAVES, SOUND
Coding Challenge #136.1: Polar Perlin Noise Loops
In this challenge, I follow the path of a circle in 2D Perlin noise space in order to use noise values that loop. #PerlinNoiseLoop 💻Code: https://thecodingtrain.com/CodingChallenges/136.1-polar-perlin-noise-loops.html 🎥Next video: https://youtu.be/c6K-wJQ77yQ Links discussed in this vide
From playlist 13: What is Perlin Noise?
How To Create A Video For Data Science Website Using Fusion | Session 05 | #design
Don’t forget to subscribe! In this project series, you will learn to create a video for a data science website using Fusion. This small course has the main goal to teach you how to use a node-based video editor Fusion from the Blackmagic Design team to create abstract video backgrounds
From playlist Create A Video For Data Science Website Using Fusion
Synchronization of Cilia and Flagella - 2 by Benjamin Friedrich
DISCUSSION MEETING : THIRSTING FOR THEORETICAL BIOLOGY (ONLINE) ORGANIZERS : Vaishnavi Ananthanarayanan (UNSW & EMBL Australia), Vijaykumar Krishnamurthy (ICTS-TIFR, India) and Vidyanand Nanjundiah (Centre for Human Genetics, India) DATE : 11 January 2021 to 22 January 2021 VENUE : Online
From playlist Thirsting for Theoretical Biology (Online)
Pierre Alliez : Robust shape reconstruction through optimal transportation
Find this video and other talks given by worldwide mathematicians on CIRM's Audiovisual Mathematics Library: http://library.cirm-math.fr. And discover all its functionalities: - Chapter markers and keywords to watch the parts of your choice in the video - Videos enriched with abstracts, b
From playlist Numerical Analysis and Scientific Computing
Daniel Cremers - Deep Learning: Challenges and Perspectives - IPAM at UCLA
Recorded 29 November 2022. Daniel Cremers of Technische Universtitat München presents "Deep Learning: Challenges and Perspectives" at IPAM's Multi-Modal Imaging with Deep Learning and Modeling Workshop. Abstract: Since 2012 deep networks have revolutionized computer vision and many other a
From playlist 2022 Multi-Modal Imaging with Deep Learning and Modeling
Coding Challenge #60: Butterfly Generator
In this coding challenge, I use trigonometry and perlin noise to procedurally generate butterfly wing designs with p5.js. This challenge is inspired by Everest Pipkin's Moth Generator. 💻Challenge: https://thecodingtrain.com/CodingChallenges/060-butterfly-wings.html Links discussed in th
From playlist 13: What is Perlin Noise?
Simulating data to understand analysis methods
This video lesson is part of a complete course on neuroscience time series analyses. The full course includes - over 47 hours of video instruction - lots and lots of MATLAB exercises and problem sets - access to a dedicated Q&A forum. You can find out more here: https://www.udemy.
From playlist NEW ANTS #1) Introductions
Live Stream #169: Perlin Noise Loops + JS Inheritance
In this live stream: Perlin Noise Loops in Processing(Java) and JavaScript Inheritance. 💻https://thecodingtrain.com/CodingChallenges/136.1-polar-perlin-noise-loops.html 💻https://thecodingtrain.com/CodingChallenges/136.2-perlin-noise-gif-loops.html 🔗 Étienne Jacob's tweet: https://twitter
From playlist Live Stream Archive
Coding Challenge #11: 3D Terrain Generation with Perlin Noise in Processing
In this coding challenge, I create a 3D procedural terrain using Perlin Noise and the beginShape() function in Processing. Code: https://thecodingtrain.com/challenges/11-3d-terrain-generation-with-perlin-noise 🕹️ p5.js Web Editor Sketch: https://editor.p5js.org/codingtrain/sketches/OPYPc4
From playlist Coding Challenges
Lecture 12 - Backprop & Improving Neural Networks | Stanford CS229: Machine Learning (Autumn 2018)
For more information about Stanford’s Artificial Intelligence professional and graduate programs, visit: https://stanford.io/3EaSVE7 Kian Katanforoosh Lecturer, Computer Science To follow along with the course schedule and syllabus, visit: http://cs229.stanford.edu/syllabus-autumn2018.
From playlist Stanford CS229: Machine Learning Full Course taught by Andrew Ng | Autumn 2018
Show Me Some Science! Speed Of Sound
Sound is a wave which travels through the air at about 330 m/s. The Little Shop of Physics Crew dances to the music together. When spread out along the track, it takes about a third of a second for the sound to travel from the first person to the last. The crew is blindfolded, so there are
From playlist Show Me Some Science!