As a language teacher, the use of audio in teaching is part of the curriculum and a natural element of classroom teaching. Depending on the technical installations available in the school or classroom, it is easy to make use of the many possibilities. If technical options are more limited, one has to be a bit more creative to come about this. For instance, in the school of my practical course, it was not possible to get sound in combination with a PowerPoint presentation, so I had to use the sound separately (obtaining the sound bites from the Internet, converting them to mp3 and burning them on a CD to play in the lesson).
The most valuable input I got in the ICT course was the reference to the programme Audacity, as it had not crossed my mind before that one could get such a programme for free and then edit the sound bites oneself at such ease. And certainly, it is a lot better to have the audio in exactly the part and length needed– rather than having to manually stop the sound at the right place.