如何修复错误“无法投射到 com.sun.speech.freetts

Question

我试图在我的 Java 程序（来自https://freetts.sourceforge.io/docs/index.php）中使用 FreeTTS并且我收到此错误：java.lang.ClassCastException: com.sun.speech.freetts.en.us.cmu_time_awb.AlanVoiceDirectory cannot be cast to com.sun.speech.freetts.VoiceDirectory

我尝试将免费 TTS jar 文件重新添加到我的项目中，这是我的代码：

import com.sun.speech.freetts.Voice;

import com.sun.speech.freetts.VoiceManager;

public class TextToSpeech {

//String voiceName = "kevin16";

VoiceManager freeVM;

Voice voice;

public TextToSpeech(String words) {

    freeVM = VoiceManager.getInstance();

    voice = VoiceManager.getInstance().getVoice("kevin16");

    if (voice != null) {

        voice.allocate();//Allocating Voice

    }

    try {

        voice.setRate(190);//Setting the rate of the voice

        voice.setPitch(150);//Setting the Pitch of the voice

        voice.setVolume(3);//Setting the volume of the voice

        SpeakText(words);// Calling speak() method

    } catch (Exception e1) {

        e1.printStackTrace();

    }

}

public void SpeakText(String words) {

    voice.speak(words);

}

我TextToSpeech从另一个类调用构造函数，如下所示：

 new TextToSpeech("Hello World");

将不胜感激任何帮助或建议！

Answer 1

像这样更改 TextToSpeech 构造函数：public TextToSpeech(String words) {    System.setProperty("freetts.voices", "com.sun.speech.freetts.en.us.cmu_us_kal.KevinVoiceDirectory");    voice = VoiceManager.getInstance().getVoice("kevin16");    if (voice != null) {        voice.allocate();// Allocating Voice        try {            voice.setRate(190);// Setting the rate of the voice            voice.setPitch(150);// Setting the Pitch of the voice            voice.setVolume(3);// Setting the volume of the voice            SpeakText(words);// Calling speak() method        } catch (Exception e1) {            e1.printStackTrace();        }    } else {        throw new IllegalStateException("Cannot find voice: kevin16");    }}这个想法是指示 freetts 使用com.sun.speech.freetts.en.us.cmu_us_kal.KevinVoiceDirectory类而不是AlanVoiceDirectory类。

Answer 2

代码更改：而不是以下行freeVM = VoiceManager.getInstance();voice = VoiceManager.getInstance().getVoice("kevin16");修改为freeVM = VoiceManager.getInstance();voice = freeVM.getVoice("kevin16");