"First, some advantages:
* it’s much easier to make an audio clip or podcast than a video clip or a simulation
* it requires far less bandwidth than video or simulations, hence downloads quicker and can be used over relatively low bandwidths
* it is easily combined with other media such as text, mathematical symbols, and graphics, allowing more than one sense to be used and allowing for ‘integration’. For examples of what I mean take a look at the UK Open University’s OpenLearn site at: http://openlearn.open.ac.uk/mod/oucontent/view.php?id=398372&section=1.2
* some students prefer to learn by listening compared with reading;audio combined with text can help develop literacy skills or support students with low levels of literacy;
* audio provides variety and another perspective from text, a ‘break’ in learning that refreshes the learner and maintains interest
* Nicola Durbridge, in her research at the Open University, found that audio increased distance students’ feelings of personal ‘closeness’ with the instructor compared with video or text, i.e. it is a more intimate medium......"