出自UXGuide.net

语音

Speech

Mac OS X contains speech technologies that enable software to recognize and speak U.S. English. These technologies provide benefits for all users and present the possibility of a new paradigm for human-computer interaction.

Mac OS X已经提供了语音技术使得程序能够识别和朗读美国英语。这些技术使得所有用户收益并呈现了人机交互一种新的可能。

Speech recognition is the ability for the computer to recognize and respond to a person’s speech. Using speech recognition, users can accomplish tasks comprising multiple steps—for example, “Schedule a meeting next Friday at 3 p.m. with John, Paul, and George” or “Create a 3-by-3 table”—with one spoken command. Mac OS X users can control the computer by voice rather than be limited to the mouse or keyboard; consequently, speech-recognition technology is very important for both people with special needs and general users. Developers can take advantage of the speech engine and API included with Mac OS X, as well as the built-in user interface.

语音识别是计算机识别并响应用户的语音信息的能力。使用语音识别技术，用户可以在一个语音指令中使用多个步骤来完成一项任务，如“在下星期五的下午三点安排一个和John，Paul，George的会议”，“创建一个3X3的表格”。Mac OS X 用户可以通过语音而不仅仅是鼠标和键盘来控制计算机；因而，语音识别技术对于普通用户和特殊需要的用户来说都很重要。开发人员可以和其他内建接口一样利用Mac OS X提供的语音引擎和API。

Speech synthesis also called text-to-speech (TTS), converts text into audible speech. It provides a way to deliver information to users without forcing them to shift attention from their current task. For example, the computer could, in the background, deliver such messages as “Your download is complete; one of the files has been corrupted” and “You have email from your boss; would you like to read it now?” TTS is also crucial for users with vision or attention disabilities. As with speech recognition, Mac OS X TTS provides both an API and several user interface features.

语音合成也叫文本到语音转换（text-to-speech，TTS），将文字转换成音频信息。它提供了将信息传达给用户而不需要用户中断当前工作的途径。例如，计算机可以在后台传递这些信息，”您的下载已经完成；一个文件已经损坏“，或者”您老板有新邮件给您，需要现在阅读吗？“TTS对于视觉和注意力有障碍的用户来说也至关重要。Mac OS X已经提供了关于语音合成的API和一些用户接口。

For information about implementing speech synthesis and recognition, see the documents in Guides > User Experience > Speech Technologies.

关于在您的程序中实现语音识别和语音合成的更多信息，请参考文档指南 > 用户体验 > 语音技术。