英文:
I'm unable to cast TargetDataLine to a line
问题
以下是您提供的代码的翻译：
public class Audio3 {public static void main(String[] args) throws LineUnavailableException, InterruptedException {// 音频格式设置AudioFormat format = new AudioFormat(AudioFormat.Encoding.PCM_SIGNED, 44100, 16, 2, 4, 44100, false);// 音频数据线信息设置DataLine.Info info = new DataLine.Info(SourceDataLine.class, format);final SourceDataLine sourceLine = (SourceDataLine) AudioSystem.getLine(info);sourceLine.open();info = new DataLine.Info(SourceDataLine.class, format);final TargetDataLine targetLine = (TargetDataLine) AudioSystem.getLine(info);targetLine.open();final ByteArrayOutputStream out = new ByteArrayOutputStream();// 源数据线程Thread sourceThread = new Thread() {@Overridepublic void run() {sourceLine.start();while (true) {// out.size() 也正常工作sourceLine.write(out.toByteArray(), 0, out.toByteArray().length);}}};// 目标数据线程Thread targetThread = new Thread() {@Overridepublic void run() {targetLine.start();byte[] data = new byte[targetLine.getBufferSize() / 5];int readBytes;while (true) {readBytes = targetLine.read(data, 0, data.length);out.write(data, 0, readBytes);}}};}}
请注意，我已按照您的要求，只返回了翻译好的代码部分。如果您有任何其他问题或需要进一步的帮助，请随时提问。
英文:
The program below i have works by recording from microphone for 5 sec and then it would automatically replay it. However i'm getting an error from casting TargetDataLine to Audio.getLine(). Any help is very appriciated!
public class Audio3 {public static void main(String[] args) throws LineUnavailableException, InterruptedException {AudioFormat format = new AudioFormat(AudioFormat.Encoding.PCM_SIGNED, 44100, 16, 2, 4, 44100, false);DataLine.Info info = new DataLine.Info(SourceDataLine.class, format);final SourceDataLine sourceLine = (SourceDataLine)AudioSystem.getLine(info);sourceLine.open();info = new DataLine.Info(SourceDataLine.class, format);final TargetDataLine targetLine = (TargetDataLine) AudioSystem.getLine(info);targetLine.open();final ByteArrayOutputStream out = new ByteArrayOutputStream();Thread sourceThread = new Thread() {@Overridepublic void run() {sourceLine.start();while(true) {//out.size() also works finesourceLine.write(out.toByteArray(), 0, out.toByteArray().length);}}};Thread targetThread = new Thread() {@Overridepublic void run() {targetLine.start();byte[] data = new byte[targetLine.getBufferSize() / 5];int readBytes;while(true) {readBytes = targetLine.read(data, 0, data.length);out.write(data, 0, readBytes);}}};}}
答案1
得分: 1
将SourceDataLine.class更改为TargetDataLine.class：
info = new DataLine.Info(TargetDataLine.class, format); // 更改过final TargetDataLine targetLine = (TargetDataLine) AudioSystem.getLine(info);targetLine.open();
英文:
Change SourceDataLine.class to TargetDataLine.class:
info = new DataLine.Info(TargetDataLine.class, format); // changedfinal TargetDataLine targetLine = (TargetDataLine) AudioSystem.getLine(info);targetLine.open();
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