百度语音合成快速集成

SDK下载：

解压压缩包有一个BaiduTtsSample项目，是一个eclipse项目，用AS导入该项目，

然后调高sdk版本:

compileSdkVersion 21
    buildToolsVersion "26.0.1"

    defaultConfig {
        applicationId "com.baidu.tts.sample"
        minSdkVersion 19
        targetSdkVersion 25
 ...
    }

可以正常运行，在自己的项目中导入该项目的app module,

1.gradle的修改：

apply plugin: 'com.android.library'

去掉：applicationId

2.AndroidManifest.xml的修改：

        >
       
       
       
   
还有一个小问题：

在switch中使用了id,当我们在Android依赖库中使用switch-case语句访问资源ID时会报如下图所示的错误，报的错误是case分支后面跟的参数必须是常数，换句话说出现这个问题的原因是Android library中生成的R.java中的资源ID不是常数。需要将switch装还成if  else 

这样就可以正常使用了，我自己封装了一个Util以便于更便捷调用：

package com.baidu.tts.sample;

import android.content.Context;
import android.graphics.Color;
import android.os.Environment;
import android.os.Handler;
import android.os.Message;
import android.text.Spannable;
import android.text.SpannableString;
import android.text.TextUtils;
import android.text.style.ForegroundColorSpan;
import android.util.Log;
import android.widget.Toast;

import com.baidu.tts.auth.AuthInfo;
import com.baidu.tts.client.SpeechError;
import com.baidu.tts.client.SpeechSynthesizeBag;
import com.baidu.tts.client.SpeechSynthesizer;
import com.baidu.tts.client.SpeechSynthesizerListener;
import com.baidu.tts.client.SynthesizerTool;
import com.baidu.tts.client.TtsMode;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;

/**
 * Created by SX on 2017/9/7.
 */

public class TTSpeaker implements SpeechSynthesizerListener {
    private static TTSpeaker ttSpeaker;
    private static Context context;
    private SpeechSynthesizer mSpeechSynthesizer;
    private String mSampleDirPath;
    private static final String SAMPLE_DIR_NAME = "baiduTTS";
    private static final String SPEECH_FEMALE_MODEL_NAME = "bd_etts_speech_female.dat";
    private static final String SPEECH_MALE_MODEL_NAME = "bd_etts_speech_male.dat";
    private static final String TEXT_MODEL_NAME = "bd_etts_text.dat";
    private static final String LICENSE_FILE_NAME = "temp_license";
    private static final String ENGLISH_SPEECH_FEMALE_MODEL_NAME = "bd_etts_speech_female_en.dat";
    private static final String ENGLISH_SPEECH_MALE_MODEL_NAME = "bd_etts_speech_male_en.dat";
    private static final String ENGLISH_TEXT_MODEL_NAME = "bd_etts_text_en.dat";

    private static final int PRINT = 0;
    private static final int UI_CHANGE_INPUT_TEXT_SELECTION = 1;
    private static final int UI_CHANGE_SYNTHES_TEXT_SELECTION = 2;
    private static final String TAG = "TTSpeaker";
    public static void init(Context context){
        TTSpeaker.context = context;
        if(ttSpeaker==null);{
        ttSpeaker = new TTSpeaker();
            ttSpeaker.initialEnv();
            ttSpeaker.initialTts();
        }
    }
    public static TTSpeaker getInstance(){
        if(ttSpeaker==null){
            throw new NullPointerException("请先调用init(),初始化TTSpeaker");
        }
        return ttSpeaker;
    }
    private void initialEnv() {
        if (mSampleDirPath == null) {
            String sdcardPath = Environment.getExternalStorageDirectory().toString();
            mSampleDirPath = sdcardPath + "/" + SAMPLE_DIR_NAME;
        }
        makeDir(mSampleDirPath);
        copyFromAssetsToSdcard(false, SPEECH_FEMALE_MODEL_NAME, mSampleDirPath + "/" + SPEECH_FEMALE_MODEL_NAME);
        copyFromAssetsToSdcard(false, SPEECH_MALE_MODEL_NAME, mSampleDirPath + "/" + SPEECH_MALE_MODEL_NAME);
        copyFromAssetsToSdcard(false, TEXT_MODEL_NAME, mSampleDirPath + "/" + TEXT_MODEL_NAME);
        copyFromAssetsToSdcard(false, LICENSE_FILE_NAME, mSampleDirPath + "/" + LICENSE_FILE_NAME);
        copyFromAssetsToSdcard(false, "english/" + ENGLISH_SPEECH_FEMALE_MODEL_NAME, mSampleDirPath + "/"
                + ENGLISH_SPEECH_FEMALE_MODEL_NAME);
        copyFromAssetsToSdcard(false, "english/" + ENGLISH_SPEECH_MALE_MODEL_NAME, mSampleDirPath + "/"
                + ENGLISH_SPEECH_MALE_MODEL_NAME);
        copyFromAssetsToSdcard(false, "english/" + ENGLISH_TEXT_MODEL_NAME, mSampleDirPath + "/"
                + ENGLISH_TEXT_MODEL_NAME);
    }

    private void makeDir(String dirPath) {
        File file = new File(dirPath);
        if (!file.exists()) {
            file.mkdirs();
        }
    }

    /**
     * 将sample工程需要的资源文件拷贝到SD卡中使用（授权文件为临时授权文件，请注册正式授权）
     *
     * @param isCover 是否覆盖已存在的目标文件
     * @param source
     * @param dest
     */
    private void copyFromAssetsToSdcard(boolean isCover, String source, String dest) {
        File file = new File(dest);
        if (isCover || (!isCover && !file.exists())) {
            InputStream is = null;
            FileOutputStream fos = null;
            try {
                is = context.getResources().getAssets().open(source);
                String path = dest;
                fos = new FileOutputStream(path);
                byte[] buffer = new byte[1024];
                int size = 0;
                while ((size = is.read(buffer, 0, 1024)) >= 0) {
                    fos.write(buffer, 0, size);
                }
            } catch (FileNotFoundException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            } finally {
                if (fos != null) {
                    try {
                        fos.close();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }
                try {
                    if (is != null) {
                        is.close();
                    }
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }

    private void initialTts() {
        this.mSpeechSynthesizer = SpeechSynthesizer.getInstance();
        this.mSpeechSynthesizer.setContext(context);
        this.mSpeechSynthesizer.setSpeechSynthesizerListener(this);
        // 文本模型文件路径 (离线引擎使用)
        this.mSpeechSynthesizer.setParam(SpeechSynthesizer.PARAM_TTS_TEXT_MODEL_FILE, mSampleDirPath + "/"
                + TEXT_MODEL_NAME);
        // 声学模型文件路径 (离线引擎使用)
        this.mSpeechSynthesizer.setParam(SpeechSynthesizer.PARAM_TTS_SPEECH_MODEL_FILE, mSampleDirPath + "/"
                + SPEECH_FEMALE_MODEL_NAME);
        // 本地授权文件路径,如未设置将使用默认路径.设置临时授权文件路径，LICENCE_FILE_NAME请替换成临时授权文件的实际路径，仅在使用临时license文件时需要进行设置，如果在[应用管理]中开通了正式离线授权，不需要设置该参数，建议将该行代码删除（离线引擎）
        // 如果合成结果出现临时授权文件将要到期的提示，说明使用了临时授权文件，请删除临时授权即可。
        this.mSpeechSynthesizer.setParam(SpeechSynthesizer.PARAM_TTS_LICENCE_FILE, mSampleDirPath + "/"
                + LICENSE_FILE_NAME);
        // 请替换为语音开发者平台上注册应用得到的App ID (离线授权)
        this.mSpeechSynthesizer.setAppId("8535996"/*这里只是为了让Demo运行使用的APPID,请替换成自己的id。*/);
        // 请替换为语音开发者平台注册应用得到的apikey和secretkey (在线授权)
        this.mSpeechSynthesizer.setApiKey("MxPpf3nF5QX0pndKKhS7IXcB",
                "7226e84664474aa098296da5eb2aa434"/*这里只是为了让Demo正常运行使用APIKey,请替换成自己的APIKey*/);
        // 发音人（在线引擎），可用参数为0,1,2,3。。。（服务器端会动态增加，各值含义参考文档，以文档说明为准。0--普通女声，1--普通男声，2--特别男声，3--情感男声。。。）
        this.mSpeechSynthesizer.setParam(SpeechSynthesizer.PARAM_SPEAKER, "0");
        // 设置Mix模式的合成策略
        this.mSpeechSynthesizer.setParam(SpeechSynthesizer.PARAM_MIX_MODE, SpeechSynthesizer.MIX_MODE_DEFAULT);
        // 授权检测接口(只是通过AuthInfo进行检验授权是否成功。)
        // AuthInfo接口用于测试开发者是否成功申请了在线或者离线授权，如果测试授权成功了，可以删除AuthInfo部分的代码（该接口首次验证时比较耗时），不会影响正常使用（合成使用时SDK内部会自动验证授权）
        AuthInfo authInfo = this.mSpeechSynthesizer.auth(TtsMode.MIX);

        if (authInfo.isSuccess()) {
            toPrint("auth success");
        } else {
            String errorMsg = authInfo.getTtsError().getDetailMessage();
            toPrint("auth failed errorMsg=" + errorMsg);
        }

        // 初始化tts
        mSpeechSynthesizer.initTts(TtsMode.MIX);
        // 加载离线英文资源（提供离线英文合成功能）
        int result =
                mSpeechSynthesizer.loadEnglishModel(mSampleDirPath + "/" + ENGLISH_TEXT_MODEL_NAME, mSampleDirPath
                        + "/" + ENGLISH_SPEECH_FEMALE_MODEL_NAME);
        toPrint("loadEnglishModel result=" + result);

        //打印引擎信息和model基本信息
        printEngineInfo();
    }

    /**
     * 打印引擎so库版本号及基本信息和model文件的基本信息
     */
    private void printEngineInfo() {
        toPrint("EngineVersioin=" + SynthesizerTool.getEngineVersion());
        toPrint("EngineInfo=" + SynthesizerTool.getEngineInfo());
        String textModelInfo = SynthesizerTool.getModelInfo(mSampleDirPath + "/" + TEXT_MODEL_NAME);
        toPrint("textModelInfo=" + textModelInfo);
        String speechModelInfo = SynthesizerTool.getModelInfo(mSampleDirPath + "/" + SPEECH_FEMALE_MODEL_NAME);
        toPrint("speechModelInfo=" + speechModelInfo);
    }
    public static void ondestory(){
        ttSpeaker.mSpeechSynthesizer.release();
    }

    public static void speak(String text) {
        //需要合成的文本text的长度不能超过1024个GBK字节。
        if (TextUtils.isEmpty(text)) {
            return;
        }
        int result = ttSpeaker.mSpeechSynthesizer.speak(text);
        if (result < 0) {
            ttSpeaker.toPrint("error,please look up error code in doc or URL:http://yuyin.baidu.com/docs/tts/122 ");
        }
    }

    public static  void pause() {
        ttSpeaker.mSpeechSynthesizer.pause();
    }

    public static  void resume() {
        ttSpeaker.mSpeechSynthesizer.resume();
    }

    public static  void stop() {
        ttSpeaker.mSpeechSynthesizer.stop();
    }

    public static  void synthesize(String text) {
        //需要合成的文本text的长度不能超过1024个GBK字节。
        int result = ttSpeaker.mSpeechSynthesizer.synthesize(text);
        if (result < 0) {
            ttSpeaker.toPrint("error,please look up error code in doc or URL:http://yuyin.baidu.com/docs/tts/122 ");
        }
    }

    public static  void batchSpeak() {
        List bags = new ArrayList();
        bags.add(getSpeechSynthesizeBag("123456", "0"));
        bags.add(getSpeechSynthesizeBag("你好", "1"));
        bags.add(getSpeechSynthesizeBag("使用百度语音合成SDK", "2"));
        bags.add(getSpeechSynthesizeBag("hello", "3"));
        bags.add(getSpeechSynthesizeBag("这是一个demo工程", "4"));
        int result = ttSpeaker.mSpeechSynthesizer.batchSpeak(bags);
        if (result < 0) {
            ttSpeaker.toPrint("error,please look up error code in doc or URL:http://yuyin.baidu.com/docs/tts/122 ");
        }
    }

    public static  SpeechSynthesizeBag getSpeechSynthesizeBag(String text, String utteranceId) {
        SpeechSynthesizeBag speechSynthesizeBag = new SpeechSynthesizeBag();
        //需要合成的文本text的长度不能超过1024个GBK字节。
        speechSynthesizeBag.setText(text);
        speechSynthesizeBag.setUtteranceId(utteranceId);
        return speechSynthesizeBag;
    }

    /*
     * @param arg0
     */
    @Override
    public void onSynthesizeStart(String utteranceId) {
        toPrint("onSynthesizeStart utteranceId=" + utteranceId);
    }

    /**
     * 合成数据和进度的回调接口，分多次回调
     *
     * @param utteranceId
     * @param data 合成的音频数据。该音频数据是采样率为16K，2字节精度，单声道的pcm数据。
     * @param progress 文本按字符划分的进度，比如:你好啊 进度是0-3
     */
    @Override
    public void onSynthesizeDataArrived(String utteranceId, byte[] data, int progress) {
        // toPrint("onSynthesizeDataArrived");
//        mHandler.sendMessage(mHandler.obtainMessage(UI_CHANGE_SYNTHES_TEXT_SELECTION, progress, 0));
    }

    /**
     * 合成正常结束，每句合成正常结束都会回调，如果过程中出错，则回调onError，不再回调此接口
     *
     * @param utteranceId
     */
    @Override
    public void onSynthesizeFinish(String utteranceId) {
        toPrint("onSynthesizeFinish utteranceId=" + utteranceId);
    }

    /**
     * 播放开始，每句播放开始都会回调
     *
     * @param utteranceId
     */
    @Override
    public void onSpeechStart(String utteranceId) {
        toPrint("onSpeechStart utteranceId=" + utteranceId);
    }

    /**
     * 播放进度回调接口，分多次回调
     *
     * @param utteranceId
     * @param progress 文本按字符划分的进度，比如:你好啊 进度是0-3
     */
    @Override
    public void onSpeechProgressChanged(String utteranceId, int progress) {
        // toPrint("onSpeechProgressChanged");
//        mHandler.sendMessage(mHandler.obtainMessage(UI_CHANGE_INPUT_TEXT_SELECTION, progress, 0));
    }

    /**
     * 播放正常结束，每句播放正常结束都会回调，如果过程中出错，则回调onError,不再回调此接口
     *
     * @param utteranceId
     */
    @Override
    public void onSpeechFinish(String utteranceId) {
        toPrint("onSpeechFinish utteranceId=" + utteranceId);
    }

    /**
     * 当合成或者播放过程中出错时回调此接口
     *
     * @param utteranceId
     * @param error 包含错误码和错误信息
     */
    @Override
    public void onError(String utteranceId, SpeechError error) {
        toPrint("onError error=" + "(" + error.code + ")" + error.description + "--utteranceId=" + utteranceId);
    }

    private Handler mHandler = new Handler() {

        /*
         * @param msg
         */
        @Override
        public void handleMessage(Message msg) {
            super.handleMessage(msg);
            int what = msg.what;
            switch (what) {
                case PRINT:
                    print(msg);
                    break;
//                case UI_CHANGE_INPUT_TEXT_SELECTION:
//                    if (msg.arg1 <= mInput.getText().length()) {
//                        mInput.setSelection(0,msg.arg1);
//                    }
//                    break;
//                case UI_CHANGE_SYNTHES_TEXT_SELECTION:
//                    SpannableString colorfulText = new SpannableString(mInput.getText().toString());
//                    if (msg.arg1 <= colorfulText.toString().length()) {
//                        colorfulText.setSpan(new ForegroundColorSpan(Color.GRAY), 0, msg.arg1, Spannable
//                                .SPAN_EXCLUSIVE_EXCLUSIVE);
//                        mInput.setText(colorfulText);
//                    }
//                    break;
                default:
                    break;
            }
        }

    };

    private void toPrint(String str) {
        Message msg = Message.obtain();
        msg.obj = str;
        this.mHandler.sendMessage(msg);
    }

    private void print(Message msg) {
        String message = (String) msg.obj;
        if (message != null) {
            Log.w(TAG, message);
//            Toast.makeText(this, message, Toast.LENGTH_SHORT).show();
//            scrollLog(message);
        }
    }
}