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of e-Learning courses and training. In general terms, sound can be
described as the “vibrations that travel through air and can be heard by
humans”. Sound requires the use of different software to allow for the
programming of this medium and when using sound in multimedia there are
many options of technologies that can be utilised to edit the sound file
including Real Audio, QuickTime and Flash. Real Audio is obviously used in
the editing/programming of sound files, however it was specifically
developed as a “streaming media format” which means that sound can be
played even as it is being downloaded.
Sound can be added to a multimedia presentation from a variety of sources.
Original sounds can be recorded using a microphone and programs such as
SoundForge, MovieWorks, or Pinacle Studio. These applications, as well as
QuickTime Pro, can also be used to import sounds from an audio CD or the
Internet. Sound resource files that can be used in multimedia projects are
also included on the HyperStudio, MovieWorks, and SmartSound CDs.
The “QuickTime” software can also be utilised for not only video but sound
as well because it is capable of „handling‟ all different types multimedia
formats. Flash, as described in the animation section, is a “powerful
animation and presentation tool” (Extending Flash), and although there
appears to be a focus on animation, it is still effective in improving the
overall look and feel of multimedia, that is, through the use of sound. When
using these technologies it is always important to know what type of
software the learners have on their computers, as this will determine
whether they will be able hear the sound files or access the multimedia
appropriately.
Further issues that require consideration include reviewing what quality the
learners‟ expect and determining the possibilities of the systems the
learners will be utilising. When sound is used in e-Learning it is important to
remember why the sound is included and whether it is necessary. Issues
concerning the „accessibility of sound‟ and the learners‟ understanding of
their computers‟ software functionality also needs to be considered. This is
particularly applicable in cases where the learners are hearing impaired
and/or the learners don‟t possess the computer literacy skills to use the
systems on their computers.
Multimedia elements such as animation, video and audio are all important
components that add interest and significant value to not only e-Learning
courses but to everyday life. It is through an understanding of the essential
aspects of these multimedia elements, for example, how they are
programmed and viewed, that one can derive an appreciation of the
importance of these components to the online learning experience.