They can be used to deliver lectures, panel discussions, or instructions for the distant learner. Audio is especially useful in courses that require the nuances of inflection, such as foreign languages, or those that are designed for non-readers. Audiotapes have several advantages for the delivery of distance learning courses. First, they are very inexpensive and readily accessible. Almost all students have access to a cassette player in their home, school, or car.
Audiotapes are also easy to create, easy to duplicate, and easy to use.
Disadvantages of audiotapes include the fact that they are not interactive, and they do not provide the visual elements that many students desire. When using audiotapes for instruction, be sure to record them using the best equipment possible. A low hiss during the recording process may result in a major distraction when the duplicate is played. Also, include print materials to enhance the tapes and encourage interactions via voicemail, e-mail, fax, or other means. Audioconferences Telephones are one of the simplest, most accessible technologies used for distance learning.