EMS Creative iMedia Unit 202

1. Digital Media
Lesson 8

2. Lesson Goals
 Know how to check the properties of a
file
 Understand the need to test against requirements
 Be able
to test audio, image and video files

3. Be able to test digital media files
Know how to check properties
Properties

Each file has properties that
we are able to check if we
right click on the file.

This will let us verify that we
have exported each file as the
right type to meet the file
type requirements stated as:
Audio
Image
Video

.mp3
.jpg
.mpg
All of this information is under
the general tab in properties.
#properties
#testing

4. Be able to test digital media files
Know how to check properties
Properties

If we look at the details tab in
properties we can also check
if each file has been made to
meet the requirements:
Audio
6 seconds
Image
600x160 pixels
Video
12 seconds
320x240 pixels
#properties
#testing

5. Be able to test digital media files
Know how to check properties
Testing

Testing is carried out towards the
end of a project usually to ensure
that the product produced meets
the client requirements.

With this task we were given very
particular instructions on how to
edit each file:
Audio
.mp3
6 seconds
Image
.jpg
600x160
Video
.mpg
320x240
12 seconds
#properties
#testing

6. Be able to test digital media files
Know how to check properties
What can we test?
Think of each digital media file…
#properties
#testing

7. Be able to test digital media files
Know how to check properties
Testing

For this project we are able to test some very specific areas of
each digital media file we produced:

If you have carried out your edits correctly we should find very
few errors in your digital media files.

If you do find errors in any of your files it is expected that you will
improve them and show evidence of your improvements.
#properties
#testing

8. Be able to test digital media files
Know how to check properties
Your Task

Create a testing table checking each of your files against the key
client requirements and identifying any improvements:
Testing

Expected Outcome
Actual Outcome
Improvements
Produce screenshots showing the properties of your audio, image
and video files and identify the key features of each:
#properties
#testing

9. Be able to test digital media files
Know how to check properties
Keywords

Properties

The information relating to a particular file
e.g. size, length, type.

Testing

Checking a product against the requirements
to make sure it is suitable.
#properties
#testing