The document provides an overview of sound editing, including the basics of sound waves such as amplitude, frequency, and phase. It describes how microphones convert sound waves to voltage changes that can be recorded digitally through sampling. Higher sampling rates and bit depths allow for better quality audio recording and reproduction in different file formats, ranging from uncompressed WAV files to lossy compressed formats like MP3 that save space.
Complete and comprehensive study of the entire chapter with attractive pictorial representation of topic being discussed and Studied. Ideal material for students to get a gist of the entire Chapter, make projects, complete ppt slide presentation for self study and group discussion.
Complete and comprehensive study of the entire chapter with attractive pictorial representation of topic being discussed and Studied. Ideal material for students to get a gist of the entire Chapter, make projects, complete ppt slide presentation for self study and group discussion.
Sound waves are produced by the vibration of material objects. A disturbance in the form of a longitudinal wave travels away from the vibrating source. High-pitched sounds are produced by sources vibrating at high frequency, while low-pitched sounds are produced by low-frequency sources Sound waves consist of traveling pulses of high-pressure zones, or compression, alternating with pulses of low-pressures zones, or rarefaction. Sound can travel through gases, liquids, and solid, but not through a vacuum.
Sound waves are produced by the vibration of material objects. A disturbance in the form of a longitudinal wave travels away from the vibrating source. High-pitched sounds are produced by sources vibrating at high frequency, while low-pitched sounds are produced by low-frequency sources Sound waves consist of traveling pulses of high-pressure zones, or compression, alternating with pulses of low-pressures zones, or rarefaction. Sound can travel through gases, liquids, and solid, but not through a vacuum.
This chapter covers:
- Hardware loss, hardware damage, and system failure, and the safeguards that can help reduce the risk of a problem occurring due to these concerns
- Software piracy and digital counterfeiting and steps that are being taken to prevent these computer crimes
- Possible risks for personal privacy violations due to databases, marketing activities, electronic surveillance, and monitoring, and precautions that can be taken to safeguard one’s privacy
This is the first powerpoint presentation I give during the beginning digital photography class. I use it to familiarize students with their point and shoot digital cameras and the controls and functions of the camera.
Tutorial 1 - Basics of Digital PhotographyFahad Golra
In the second session of this 5 session workshop, I am going to explain the photography gear (lens) with special focus on focal length and maximum aperture. Then we will discuss about the introduction of exposure in photography.
The Indian economy is classified into different sectors to simplify the analysis and understanding of economic activities. For Class 10, it's essential to grasp the sectors of the Indian economy, understand their characteristics, and recognize their importance. This guide will provide detailed notes on the Sectors of the Indian Economy Class 10, using specific long-tail keywords to enhance comprehension.
For more information, visit-www.vavaclasses.com
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
2. Sound Waves
• Sound is caused by vibrations in the air
– Guitar strings, vocal cords, speaker cones
• Air molecules are pushed together, causing
subtle air pressure changes
– Ear drums interpret the pressure changes as
sounds
• Analog sound waves represent the shifts in air
pressure
4. Amplitude
• Distance from the peak to the trough of the
wave
• The higher the amplitude, the louder the
sound
5. Frequency
• Number of wave cycles per second
• Measured in Hz
• The higher the frequency, the higher the pitch
6. Cycle/Phase
• Cycle
– Single sequence of pressure changes from zero to
high to low, and then back to zero
• Phase
– Position in the cycle
– Measured in degrees
• Wavelength
– Time it takes to complete
one cycle
7. Interaction of Sound Waves
• In Phase
– Waves that are perfectly in phase reinforce each
other
• Out of Phase
– Waves that are perfectly out of phase cancel each
other
8. Interaction of Sound Waves
• Waves that are out of phase in varying
amounts combine to form a more complex
wave
9. Recording Sound Waves
• Microphones convert pressure changes into
voltage changes
– High pressure becomes positive voltage
– Low pressure becomes negative voltage
• Voltage changes can be recorded as changes
in magnetic strength on tape for analog
recording
• Digital recording is done by sampling the
analog waveform
10. Sampling
• Each sample is a snapshot of the voltage value
of the analog wave
• The more often the sample is taken, the more
accurate the digitization of the sound will be
12. Bit Depth
• Size of each sample
• Higher the bit depth, the better audio quality
is possible
13. Audio File Formats
• Uncompressed
– WAV (AIFF on the Mac)
• Files can get very large
• 5 MB per minute for a mono file at 44,100 sampling rate
• Lossless compression
– File formats that save space by not recording data for
silence
– FLAC, WavPack
• Lossy compression
– Complex algorithms that attempt to reproduce sound
using less data
– MP3, Ogg Vorbis, WMA (includes DRM), ra, AAC (I-Tunes)
