SpeechRecognitionAlternative
SpeechRecognitionAlternative
是 Web 语音 API 的一个接口,表示语音识别服务识别出的单个单词。
实例属性
SpeechRecognitionAlternative.transcript
只读-
返回包含识别单词的文本的字符串。
SpeechRecognitionAlternative.confidence
只读-
返回一个介于 0 和 1 之间的数值估计,表示语音识别系统对识别结果的置信度。
示例
此代码摘录自我们的 语音颜色更改器 示例。
js
recognition.onresult = (event) => {
// The SpeechRecognitionEvent results property returns a SpeechRecognitionResultList object
// The SpeechRecognitionResultList object contains SpeechRecognitionResult objects.
// It has a getter so it can be accessed like an array
// The first [0] returns the SpeechRecognitionResult at position 0.
// Each SpeechRecognitionResult object contains SpeechRecognitionAlternative objects
// that contain individual results.
// These also have getters so they can be accessed like arrays.
// The second [0] returns the SpeechRecognitionAlternative at position 0.
// We then return the transcript property of the SpeechRecognitionAlternative object
const color = event.results[0][0].transcript;
diagnostic.textContent = `Result received: ${color}.`;
bg.style.backgroundColor = color;
};
规范
规范 |
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Web 语音 API # speechreco-alternative |
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