All advice documents, training courses and blog entries tagged 'compression'
Still images advice tagged 'compression'
Print Size and File Size Calculator
This calculator will help you work out maximum print sizes you can expect from digital images. It will also work out approximate file sizes for Raw, TIFF and JPEG images. As long as you know the pixel dimensions of your image, the calculator will work out the rest for you. You can use it with digital camera images or other digital images.
Read full advice document...Which Digital Camera File Formats Should I Use?
Our camera offers so many file formats, which one should we use?
Read full advice document...Choosing a File Format for Digital Still Images
The choice of file formats can often prove overwhelming for someone new to the world of digital imaging. The aim of this document is to explain some of the factors that should be considered before choosing a format and suggest suitable file formats for specific applications.
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Moving images advice tagged 'compression'
Introduction to Digital Video
We look at a variety of concepts and issues relating to digital video. The intention is to give the reader enough knowledge to make informed choices about digital video equipment, to create digital video and to read more advanced documents about digital video on the JISC Digital Media website.
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Audio advice tagged 'compression'
AAC Audio and the MP4 Media Format
A guide to the creation and use of AAC compressed audio resources. AAC is the successor to the popular MP3 format, and this document explains its advantages over MP3, as well as its place within the wider MPEG-4 media family.
Read full advice document...Uncompressed Audio File Formats
This document summarises the main features of uncompressed audio file types, including WAV, AIFF and Broadcast WAV (BWF). It gives an overview of these ‘raw’ formats, and a simple explanation of the common options they will offer the user when creating or working with digital audio. It also looks at lossless compression tools for subsequently reducing the size of these files which will allow reconstruction of their original audio data sonically unaltered. Several sections include links to further resources covering specific relevant topics in more detail, so this is a good place to start if you want to learn more about any of these formats.
Read full advice document...User Guide to MP3
A guide to the creation, manipulation and use of audio flies in the popular MP3 format, including a close look at the many audio and metadata options which MP3 offers, and its use within teaching and learning.
Read full advice document...Audio Processing - Dynamics and Compression
How compression and other forms of dynamics processing work, and how they can be used to improve the impact, clarity and subjective quality of your recordings.
[Note: In the context of audio signal processing, ‘compression’ has a completely different connotation to ‘compression’ when used to describe file compression in the computer domain. Though they share the same term the two are entirely unrelated, and should not be confused!]
Read full advice document...Choosing a Digital Audio File Format
The choice of file formats can often prove overwhelming for someone new to the world of digital audio. The aim of this document is to discuss some of the key factors that should be considered before choosing a format and suggest suitable file formats for specific applications.
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Cross-media advice tagged 'compression'
File Formats and Compression
This document looks at the theory of file formats and the common methods of data compression.
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Blog entries tagged 'compression'
Online image size calculator
Our latest addition to the website is a Print Size and File Size Calculator.
Read blog entry...AAC explained
A new advice document covering Advanced Audio Coding (AAC), an audio compression method designed to replace MP3.
Read blog entry...Video, audio and image file formats
We’ve just released a fully updated version of our advice document on File Formats and Compression.
Read blog entry...The new Final Cut Studio has arrived
Apple has just announced the new release of Final Cut Studio, including Final Cut Pro 7, Motion 4, Soundtrack Pro 3, Color 1.5, Compressor 3.5 and DVD Studio Pro 4, for those of you who like version numbers.
Read blog entry...mp3HD has arrived
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