202 - lesson 2 - audio

Digital MediaLesson 2

Lesson Goals Understand key features of various audio software

Be able to identify the capabilities and limitations

Know various audio file formats and their properties

What software can we use to edit audio files?

Identify capabilities & limitationsKnow audio file formats

#audio #capability#limitation #file

Audio Software The following are examples of commercial audio editing software:



Audacity Pro Tools Garage Band Adobe Audition

Wave Pad Sound Forge Adobe Soundbooth Logic Pro

Audio Software Different types of audio editing software will allow you to carry

out varying tasks depending on the software used.

Common capabilities of audio editing software include: Cut, copy and paste Delete and insert Audio effects Multiple tracks Volume adjustment Recording feature Export in different formats Cross Platform



Your Task – Audio Software Describe the characteristics and capabilities of the software:

What can the software do? What are the main features?

Explain the limitations of each piece of software: What can’t the software do? Is the price or platform a problem?


Software Characteristics & Capabilities Limitations

Which platforms allow us to listen to digital media?



Audio Platforms You can listen to digital media on any of the following devices:



Audio Platforms Because there are so many different audio playback devices,

various file formats are required to cater for each one.

Some devices will sacrifice audio quality for smaller file sizes while others required top quality audio regardless of size.

Audio file formats can vary in: File Size Quality DRM Compression



Compression Digital media files may need to be compressed to allow devices

to store a number of files on them all at the same time:



WAV 30.4mb

WMA 15.6mb

MP3 4.2MB

MP31.4mb

192kbps

64kbps

Your Task – Audio File Formats Describe the characteristics and properties of each file:

Where is it used? Big or small file size? Common or not?

Explain file compression for each type: Is it a compressed file or not?


File Format Characteristics & Properties Compressed?

Keywords

Audio

Capabilities

Limitations

Compression

Sound which can be recorded or broadcast

Tasks that the software is able to do

Tasks that the software cannot complete

Making a file smaller for broadcasting on different platforms


202 - lesson 2 - audio

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