Voice technology is just beginning to gain a foothold in the information processing world. Applications such as voice mail, credit verification, order entry and airline reservation systems are slowly being introduced. Critics of voice systems frequently point out their limitations with little understanding of their power or advantages. One key determinant of the success or failure of voice systems is the USER INTERFACE. It is important that the dialogue structure, prompts, system feedback and error messages be designed based on user input, testing and evaluation.
rnAnother key determinant of the success of voice systems is the careful matching of users, tasks and environment to the technology. Voice technology is often broken down into 3 major categories.
rnSpeech compression. Processing allows analog patterns of human speech to be digitized. Once stored in digital form, the information can be transmitted and played back.
rnCommon Applications: Voice Mail, Voice Annotation.
rnText-to-Speech. Processing allows computer-stored text to be translated and retrieved via a "synthesized" voice.
rnCommon applications: Remote retrieval of information (E-Mail, Calendar Appointments), Aids to Visually or Vocally Handicapped.
rnSpeech Recognition. Processing allows analog patterns of human speech to be translated into their text-based equivalent or into computer commands.
rnCommon Applications: Data Entry, Voice Activated Typewriter.
语音技术刚刚开始在信息处理领域立足。语音邮件,信用验证,订单输入和航空公司预订系统等应用正在慢慢引入。语音系统的批评者经常指出它们的局限性,而对它们的功能或优势却很少了解。决定用户语音系统成功与否的一个关键因素是用户界面。必须根据用户的输入,测试和评估来设计对话结构,提示,系统反馈和错误消息。 P> rn
语音系统成功的另一个关键因素是用户的精心匹配,技术的任务和环境。语音技术通常分为三大类。 P> rn
语音压缩。处理允许人类语音的模拟模式被数字化。一旦以数字形式存储,信息就可以传输和回放。常见应用:语音邮件,语音注释。文本到语音。通过处理,计算机存储的文本可以通过“合成的”语音进行翻译和检索。 P> rn
常用应用程序:远程检索信息(电子邮件,日历约会),视觉或声音残障人士的帮助。 / P> rn
语音识别。处理可以将人类语音的模拟模式转换为基于文本的等效模式或计算机命令。 P> rn
常见应用程序:数据输入,语音激活打字机。 P>
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