The API specifies a cross-platform interface to support command-and-control recognizers, dictation systems, and speechsynthesizers.
这种 API 规定一个跨平台的接口来支持 命令―控制识别器、听写系统和语音合成器。
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The screen reader then renders that information using specialized text-to-speech hardware, software speechsynthesizers, Braille displays, or some combination thereof.