我正在创建一个应用程序来识别两个波文件的声音，因为这样做，我发现了" Musicg"库用于此目的。因此，我只是在项目中写一个简单的代码，以查看声音是否相似，但是当我运行项目崩溃时，我发现该程序遇到指纹simerity = wave.getfinger.getfingerprintsimerity(wave1(;然后它崩溃了，所以有人可以告诉我我在哪里犯了什么错误？
这是我的简单代码
FingerprintSimilarity fingerprintSimilarity;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Wave wave = new Wave("sampledata/cock_a_1.wav");
Wave wave1 = new Wave("sampledata/cock_a_1.wav");
fingerprintSimilarity = wave.getFingerprintSimilarity(wave1);
float score = fingerprintSimilarity.getScore();
float similarity = fingerprintSimilarity.getSimilarity();
Log.d("hi","score :" +score+ "n Similarity :" + similarity);
}
它给了我这些错误：
03-24 23：42：41.984 2817-2817/com.example.fiterprint e/androidruntime：致命例外：主要过程：com.example.fingerprint，pid：2817java.lang.runtimeException：无法启动活动ComponentInfo {com.example.fingerprint/com.example.finger.fingerprint.mainactivity}：java.lang.nullpointerexception：尝试调用firtual method'int com.musicg.wave.wave.wave.wave.wave.wave.wave.wave.wave.wave.wave.wave.wave.wave.waveheader.getsamplore(('在空对象引用上在android.app.act.activitythread.performlaunchactivity(activityThread.java:2416(在android.app.act.activitythread.handlelaunchactivity(activityThread.java:2476(at android.app.ActivityThread.-wrap11(activityThread.java(at android.app.ActivityThread $ H.Handlemessage(activityThread.java:1344(at android.os.handler.dispatchmessage(Handler.java:102(at android.os.looper.loop(looper.java:148(at android.app.activitythread.main(activityThread.java:5417(在java.lang.reflect.method.invoke(本机方法(上在com.android.internal.os.os.zygoteinit $ methodAndargScaller.run(zygoteinit.java:726(在com.android.internal.os.os.zygoteinit.main(zygoteinit.java:616(引起：java.lang.nullpointerexception：尝试调用虚拟方法'int com.musicg.wave.wavehave.waveheader.getsamplerate(('null对象参考在com.musicg.fingerprint.fingerprintmanager.extractfingerprint(Fingerprintmanager.java:69(在com.musicg.wave.wave.getfingerprint(wave.java:329(在com.musicg.wave.wave.getfingerprintsimerity(wave.java:335(在com.example.fingerprint.mainactivity.oncreate(MainActivity.java:31(在android.app.activity.performcreate(activity.java:6237(at android.app.instrumentation.callactivityoncreate(instrumentation.java:1107(at android.app.activitythread.performlaunchactivity(activityThread.java:2369(在android.app.act.activitythread.handlelaunchactivity(activityThread.java:2476(at android.app.ActivityThread.-wrap11(activityThread.java(at android.app.ActivityThread $ H.Handlemessage(activityThread.java:1344(at android.os.handler.dispatchmessage(Handler.java:102(at android.os.looper.loop(looper.java:148(at android.app.activitythread.main(activityThread.java:5417(在java.lang.reflect.method.invoke(本机方法(上在com.android.internal.os.os.zygoteinit $ methodAndargScaller.run(zygoteinit.java:726(在com.android.internal.os.os.zygoteinit.main(zygoteinit.java:616(
wave((方法接受" inputstream"作为参数，而不是文件的路径。将文件的路径转换为InpustReam类型，然后将其放入Wave参数中。