This chapter presents a review of the published literature relevant to our work. In producing audio renderings, we draw on prior work on structured electronic documents and the use of speech and non-speech audio in computer interfaces.
Section 6.1 introduces work on recognizing document structure. We outline ongoing work on marking up document structure unambiguously and translating between different document encodings. Section 6.2 covers prior and ongoing work in the innovative use of audio in human-computer interaction.