Audio applications

Processing of sound and music dates back to the earliest days of computing in research labs. The first commercial applications were in the music recording industry where then-expensive equipment could be justified. By the mid 1990s audio had come to the Internet, and by the late 1990s technology had improved enough to place audio applications in the mainstream. (Check the conclusion of the article on audio on the Internet).

Once sound is recorded, it can be copied, compressed, edited and transformed using a sound processing program that can run on a modern personal computer. This is another example of the progression of tools from the research lab to professional application to the general public.

The most common audio applications are the recording and distribution of speech and music which is transforming the music industry and radio industries and voice over IP (VOIP), which is transforming the telephone industry. We will cover these separately, but first, let us look at three other audio application areas:

Speech recognition: Google yellow pages, goog411 (Watch the video, then try it.)
speaker identification: using a speech sample to identify or reject a speaker
speech synthesis: generating speech from text input
speech synthesis: text-to-speech with an avatar

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