java 调用本地扬声器的步骤

<!-- https://mvnrepository.com/artifact/net.sf.jacob-project/jacob -->
<dependency>
	<groupId>net.sf.jacob-project</groupId>
	<artifactId>jacob</artifactId>
	<version>1.14.3</version>
</dependency>

/**
 * 文字转语音测试 jdk bin文件中需要导入jacob-1.17-M2-x64.dll
 * 注意导包哈
 * @date: 2020年2月25日 上午10:05:21
 */
public class Jacobtest {


    public static void main(String[] args) {
        textToSpeech("工作人员请注意，桌号8001顾客正在寻求帮助！！");
    }

    /**
     * 语音转文字并播放
     *
     * @param text
     */
    public static void textToSpeech(String text) {
        ActiveXComponent ax = null;
        try {
            ax = new ActiveXComponent("Sapi.SpVoice");

            // 运行时输出语音内容
            Dispatch spVoice = ax.getObject();
            // 音量 0-100
            ax.setProperty("Volume", new Variant(100));
            // 语音朗读速度 -10 到 +10
            ax.setProperty("Rate", new Variant(0));
            // 执行朗读
            Dispatch.call(spVoice, "Speak", new Variant(text));

           /* // 下面是构建文件流把生成语音文件

            ax = new ActiveXComponent("Sapi.SpFileStream");
            Dispatch spFileStream = ax.getObject();

            ax = new ActiveXComponent("Sapi.SpAudioFormat");
            Dispatch spAudioFormat = ax.getObject();

            // 设置音频流格式
            Dispatch.put(spAudioFormat, "Type", new Variant(22));
            // 设置文件输出流格式
            Dispatch.putRef(spFileStream, "Format", spAudioFormat);
            // 调用输出 文件流打开方法，创建一个.wav文件
            Dispatch.call(spFileStream, "Open", new Variant("./text.wav"), new Variant(3), new Variant(true));
            // 设置声音对象的音频输出流为输出文件对象
            Dispatch.putRef(spVoice, "AudioOutputStream", spFileStream);
            // 设置音量 0到100
            Dispatch.put(spVoice, "Volume", new Variant(100));
            // 设置朗读速度
            Dispatch.put(spVoice, "Rate", new Variant(-2));
            // 开始朗读
            Dispatch.call(spVoice, "Speak", new Variant(text));

            // 关闭输出文件
            Dispatch.call(spFileStream, "Close");
            Dispatch.putRef(spVoice, "AudioOutputStream", null);

            spAudioFormat.safeRelease();
            spFileStream.safeRelease();*/
            spVoice.safeRelease();
            ax.safeRelease();

        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

public class EngineeCore {
    String filePath = "E:\\voice\\voice_cache.wav";
    AudioFormat audioFormat;
    TargetDataLine targetDataLine;
    boolean flag = true;
    
	private void stopRecognize() {
        flag = false;
        targetDataLine.stop();
        targetDataLine.close();
    }
    private AudioFormat getAudioFormat() {
        float sampleRate = 16000;
        // 8000,11025,16000,22050,44100
        int sampleSizeInBits = 16;
        // 8,16
        int channels = 1;
        // 1,2
        boolean signed = true;
        // true,false
        boolean bigEndian = false;
        // true,false
        return new AudioFormat(sampleRate, sampleSizeInBits, channels, signed, bigEndian);
    }// end getAudioFormat


    private void startRecognize() {
        try {
            // 获得指定的音频格式
            audioFormat = getAudioFormat();
            DataLine.Info dataLineInfo = new DataLine.Info(TargetDataLine.class, audioFormat);
            targetDataLine = (TargetDataLine) AudioSystem.getLine(dataLineInfo);
            // Create a thread to capture the microphone
            // data into an audio file and start the
            // thread running. It will run until the
            // Stop button is clicked. This method
            // will return after starting the thread.
            flag = true;
            new CaptureThread().start();
        } catch (Exception e) {
            e.printStackTrace();
        } // end catch
    }// end captureAudio method

    class CaptureThread extends Thread {
        public void run() {
            AudioFileFormat.Type fileType = null;
            File audioFile = new File(filePath);

            fileType = AudioFileFormat.Type.WAVE;
            //声音录入的权值
            int weight = 2;
            //判断是否停止的计数
            int downSum = 0;

            ByteArrayInputStream bais = null;
            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            AudioInputStream ais = null;
            try {
                targetDataLine.open(audioFormat);
                targetDataLine.start();
                byte[] fragment = new byte[1024];

                ais = new AudioInputStream(targetDataLine);
                while (flag) {

                    targetDataLine.read(fragment, 0, fragment.length);
                    //当数组末位大于weight时开始存储字节（有声音传入），一旦开始不再需要判断末位
                    if (Math.abs(fragment[fragment.length-1]) > weight || baos.size() > 0) {
                        baos.write(fragment);
                        System.out.println("守卫："+fragment[0]+",末尾："+fragment[fragment.length-1]+",lenght"+fragment.length);
                        //判断语音是否停止
                        if(Math.abs(fragment[fragment.length-1])<=weight){
                            downSum++;
                        }else{
                            System.out.println("重置奇数");
                            downSum=0;
                        }
　　　　　　　　　　　　　　　//计数超过20说明此段时间没有声音传入(值也可更改)
                        if(downSum>20){
                            System.out.println("停止录入");
                            break;
                        }

                    }
                }

                //取得录音输入流
                audioFormat = getAudioFormat();
                byte audioData[] = baos.toByteArray();
                bais = new ByteArrayInputStream(audioData);
                ais = new AudioInputStream(bais, audioFormat, audioData.length / audioFormat.getFrameSize());
                //定义最终保存的文件名
                System.out.println("开始生成语音文件");
                AudioSystem.write(ais, AudioFileFormat.Type.WAVE, audioFile);
                downSum = 0;
                stopRecognize();

            } catch (Exception e) {
                e.printStackTrace();
            } finally {
                //关闭流

                try {
                    ais.close();
                    bais.close();
                    baos.reset();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }// end run
    }// end inner class CaptureThread