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語音合成是實現(xiàn)人機語音交互,，建立一個有聽和講能力的交互系統(tǒng)所必需的關鍵技術,。
這篇文章將介紹如何使用百度Android語音合成SDK,。
與語音識別SDK類似，使用語音合成SDK也需要注冊,，并開啟語音合成API服務,，詳細步驟可以參考 點擊打開鏈接 中的注冊部分。
百度語音合成SDK以JAR包+動態(tài)鏈接庫形式發(fā)布,，需要開發(fā)者在 點擊打開鏈接 下載SDK開發(fā)包,，并將libs文件夾拷貝到工程中
 申請必要的權限
<uses-permission android:name="android.permission.INTERNET"></uses-permission>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"></uses-permission>
<uses-permission android:name="android.permission.READ_PHONE_STATE"/> 初始化SpeechSynthesizer對象 speechSynthesizer = new SpeechSynthesizer(getApplicationContext(),
"holder", this);
// 此處需要將setApiKey方法的兩個參數(shù)替換為你在百度開發(fā)者中心注冊應用所得到的apiKey和secretKey
speechSynthesizer.setApiKey("your-apiKey", "your-secretKey"); 參數(shù)設置
private void setParams() {
speechSynthesizer.setParam(SpeechSynthesizer.PARAM_SPEAKER, "0");
speechSynthesizer.setParam(SpeechSynthesizer.PARAM_VOLUME, "5");
speechSynthesizer.setParam(SpeechSynthesizer.PARAM_SPEED, "5");
speechSynthesizer.setParam(SpeechSynthesizer.PARAM_PITCH, "5");
speechSynthesizer.setParam(SpeechSynthesizer.PARAM_AUDIO_ENCODE, "1");
speechSynthesizer.setParam(SpeechSynthesizer.PARAM_AUDIO_RATE, "4");
speechSynthesizer.setParam(SpeechSynthesizer.PARAM_LANGUAGE, "ZH");
speechSynthesizer.setParam(SpeechSynthesizer.PARAM_NUM_PRON, "0");
speechSynthesizer.setParam(SpeechSynthesizer.PARAM_ENG_PRON, "0");
speechSynthesizer.setParam(SpeechSynthesizer.PARAM_PUNC, "0");
speechSynthesizer.setParam(SpeechSynthesizer.PARAM_BACKGROUND, "0");
speechSynthesizer.setParam(SpeechSynthesizer.PARAM_STYLE, "0");
speechSynthesizer.setParam(SpeechSynthesizer.PARAM_TERRITORY, "0");
} 不需要實現(xiàn)這么多參數(shù)，具體參數(shù)的含義可以參看SDK的使用文檔和參數(shù)設置,。如果需要對音頻播報的音頻流進行設置,，可以調(diào)用如下接口
speechSynthesizer.setAudioStreamType(AudioManager.STREAM_MUSIC);以上內(nèi)容即可以實現(xiàn)語音合成的操作，識別過程中可以使用SpeechSynthesizerListener來監(jiān)聽狀態(tài),，從而更好的實現(xiàn)界面同步,。 class listener implements SpeechSynthesizerListener {
@Override
public void onStartWorking(SpeechSynthesizer synthesizer) {
logDebug("開始工作，請等待數(shù)據(jù)...");
}
@Override
public void onSpeechStart(SpeechSynthesizer synthesizer) {
logDebug("朗讀開始");
}
@Override
public void onSpeechResume(SpeechSynthesizer synthesizer) {
logDebug("朗讀繼續(xù)");
}
@Override
public void onSpeechProgressChanged(SpeechSynthesizer synthesizer, int progress) {
}
@Override
public void onSpeechPause(SpeechSynthesizer synthesizer) {
logDebug("朗讀已暫停");
}
@Override
public void onSpeechFinish(SpeechSynthesizer synthesizer) {
logDebug("朗讀已停止");
}
@Override
public void onNewDataArrive(SpeechSynthesizer synthesizer, byte[] dataBuffer, int dataLength) {
logDebug("新的音頻數(shù)據(jù)：" + dataLength);
}
@Override
public void onError(SpeechSynthesizer synthesizer, SpeechError error) {
logError("發(fā)生錯誤：" + error.errorDescription + "(" + error.errorCode + ")");
}
@Override
public void onCancel(SpeechSynthesizer synthesizer) {
logDebug("已取消");
}
@Override
public void onBufferProgressChanged(SpeechSynthesizer synthesizer, int progress) {
}
} |
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