Java将字符串输出成音频的工具类

导入配置文件

下载dll配置文件

链接：https://pan.baidu.com/s/1fqdgABV8-musViEBKMgVeg 
提取码：2559

将压缩包中的配置文件移动到JDK的bin目录下

编写Util工具类

引入jacob依赖

<dependency>
    <groupId>com.hynnet</groupId>
    <artifactId>jacob</artifactId>
    <version>1.18</version>
</dependency>

编写工具类

import org.slf4j.Logger;
import com.jacob.com.Variant;
import com.jacob.com.Dispatch;
import org.slf4j.LoggerFactory;
import com.jacob.activeX.ActiveXComponent;

/** 音频操作 */
public class AudioFrequencyOperating {

    /** 日志打印 */
    private static final Logger log = LoggerFactory.getLogger(StringOperatingUtil.class);

    /**
     * 播放自定义字符串
     * @param volume                音量,允许范围1~100之间
     * @param rate                  朗读速度,允许范围-10~10之间
     * @param text                  要输出的字符串
     * @param whetherGenerateFile   是否生成文件
     */
    public static void textToSpeech(Integer volume, Integer rate, String text, Boolean whetherGenerateFile) {

        if (volume == null || !(0 < volume && volume <= 100)) throw new RuntimeException("音量输出超出范围");
        if (rate == null || !(-10 <= rate && rate <= 10))  throw new RuntimeException("朗读速度超出范围");

        try {

            ActiveXComponent activeXComponent = new ActiveXComponent("Sapi.SpVoice");
            /* 运行时输出语音内容 */
            Dispatch dispatch = activeXComponent.getObject();
            /* 音量 0-100 */
            activeXComponent.setProperty("Volume", new Variant(volume));
            /* 语音朗读速度 -10 到 +10 */
            activeXComponent.setProperty("Rate", new Variant(rate));
            /* 执行朗读 */
            Dispatch.call(dispatch, "Speak", new Variant(text));

            log.info("音频输出成功");

            /* 是否将构建的文件流生成语音文件 */
            if (whetherGenerateFile) {
                activeXComponent = new ActiveXComponent("Sapi.SpFileStream");
                Dispatch spFileStream = activeXComponent.getObject();

                activeXComponent = new ActiveXComponent("Sapi.SpAudioFormat");
                Dispatch spAudioFormat = activeXComponent.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.mp3文件 */
                Dispatch.call(spFileStream, "Open", new Variant("./text.mp3"), 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(dispatch, "AudioOutputStream", spFileStream);
                /* 设置音量0到100 */
                Dispatch.put(dispatch, "Volume", new Variant(100));
                /* 设置朗读速度 */
                Dispatch.put(dispatch, "Rate", new Variant(0));
                /* 开始朗读 */
                Dispatch.call(dispatch, "Speak", new Variant(text));
                /* 关闭输出文件 */
                Dispatch.call(spFileStream, "Close");
                Dispatch.putRef(dispatch, "AudioOutputStream", null);

                log.info("音频文件已生成到项目的根目录下");

                spAudioFormat.safeRelease();
                spFileStream.safeRelease();

            }

            dispatch.safeRelease();
            activeXComponent.safeRelease();

        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }
}