摘要 |
<p>A page of text from a database (4) has certain words marked with the addresses of other, linked pages. The text is received at (10) and converted into an audio signal by a speech synthesiser (15) that it can be heard by a user. The user's spoken responses are fed to a speech recogniser (19) so that an address associated with a marked word in which the user is interested can be returned to the database (4) for retrieval of the corresponding linked page. Because the user will not necessarily know which words are marked, the recogniser is set up to match the user's response against the whole of the text fed to the synthesiser to identify the words in the text giving the best match. A resolver (20) finds the nearest marked word to the words identified and extracts the associated link address.</p> |