using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Windows.Speech;//引入命名空间  利用
public class speechKey : MonoBehaviour
{

    // 短语识别器
    private PhraseRecognizer m_PhraseRecognizer;
    // 关键字

    public string[] keywords;
    // 可信度
    public ConfidenceLevel m_confidenceLevel = ConfidenceLevel.Medium;
    // Use this for initialization
    void Start()
    {
        //创建一个识别器
        m_PhraseRecognizer = new KeywordRecognizer(keywords, m_confidenceLevel);
        //通过注册监听的方法
        m_PhraseRecognizer.OnPhraseRecognized += M_PhraseRecognizer_OnPhraseRecognized;
        //开启识别器
        m_PhraseRecognizer.Start();
    }

    // 当识别到关键字时，会调用这个方法
    private void M_PhraseRecognizer_OnPhraseRecognized(PhraseRecognizedEventArgs args)
    {
        print(args.text);
    }
    private void OnDestroy()
    {
        //用完应该释放，否则会带来额外的开销
        m_PhraseRecognizer.Dispose();
    }
    // Update is called once per frame
    void Update()
    {

    }
}

备注：只能用于win10系统 并且Unity需要较高版本的

转载https://blog.csdn.net/LCHUIHUI/article/details/87284810