【发布时间】：2019-01-23 06:42:15
【问题描述】：
所以我正在尝试为用户录制音频并尝试在用户不说话时删除静音。
为此，我进行了很多搜索，发现您可以使用媒体记录器或录音机进行记录，然后对其进行转换并尝试分析块以检测静音。
好吧，对于刚开始使用 android 的人来说工作量太大，然后我发现这个项目已经在运行，你可以将它用作你只需要适应你的情况的依赖项。
这是链接：https://github.com/kailash09dabhi/OmRecorder
现在我的问题是，每当我尝试运行我的应用程序时，当我点击假设启动录制步骤的图像视图时，应用程序崩溃并自动关闭，我收到此错误： java.lang.RuntimeException: 无法从此文件 test.wav 构建 OutputStream
任何人都可以提出任何解决方案吗？？
Manifest.xml：
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.authentric.audioenrol">
<uses-permission android:name="android.permission.RECORD_AUDIO" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
主活动：
public class MainActivity extends AppCompatActivity {
Recorder recorder;
ImageView recordButton;
CheckBox skipSilence;
private Button pauseResumeButton;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
getSupportActionBar().setTitle("Wav Recorder");
setupRecorder();
skipSilence = (CheckBox) findViewById(R.id.skipSilence);
skipSilence.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override public void onCheckedChanged(CompoundButton compoundButton, boolean isChecked) {
if (isChecked) {
setupNoiseRecorder();
} else {
setupRecorder();
}
}
});
recordButton = (ImageView) findViewById(R.id.recordButton);
recordButton.setOnClickListener(new View.OnClickListener() {
@Override public void onClick(View view) {
recorder.startRecording();
skipSilence.setEnabled(false);
}
});
findViewById(R.id.stopButton).setOnClickListener(new View.OnClickListener() {
@Override public void onClick(View view) {
try {
recorder.stopRecording();
} catch (IOException e) {
e.printStackTrace();
}
skipSilence.setEnabled(true);
recordButton.post(new Runnable() {
@Override public void run() {
animateVoice(0);
}
});
}
});
pauseResumeButton = (Button) findViewById(R.id.pauseResumeButton);
pauseResumeButton.setOnClickListener(new View.OnClickListener() {
boolean isPaused = false;
@Override public void onClick(View view) {
if (recorder == null) {
Toast.makeText(MainActivity.this, "Please start recording first!",
Toast.LENGTH_SHORT).show();
return;
}
if (!isPaused) {
pauseResumeButton.setText(getString(R.string.resume_recording));
recorder.pauseRecording();
pauseResumeButton.postDelayed(new Runnable() {
@Override public void run() {
animateVoice(0);
}
}, 100);
} else {
pauseResumeButton.setText(getString(R.string.pause_recording));
recorder.resumeRecording();
}
isPaused = !isPaused;
}
});
}
private void setupRecorder() {
recorder = OmRecorder.wav(
new PullTransport.Default(mic(), new PullTransport.OnAudioChunkPulledListener() {
@Override public void onAudioChunkPulled(AudioChunk audioChunk) {
animateVoice((float) (audioChunk.maxAmplitude() / 200.0));
}
}), file());
}
private void setupNoiseRecorder() {
recorder = OmRecorder.wav(
new PullTransport.Noise(mic(),
new PullTransport.OnAudioChunkPulledListener() {
@Override public void onAudioChunkPulled(AudioChunk audioChunk) {
animateVoice((float) (audioChunk.maxAmplitude() / 200.0));
}
},
new WriteAction.Default(),
new Recorder.OnSilenceListener() {
@Override public void onSilence(long silenceTime) {
Log.e("silenceTime", String.valueOf(silenceTime));
Toast.makeText(MainActivity.this, "silence of " + silenceTime + " detected",
Toast.LENGTH_SHORT).show();
}
}, 200
), file()
);
}
private void animateVoice(final float maxPeak) {
recordButton.animate().scaleX(1 + maxPeak).scaleY(1 + maxPeak).setDuration(10).start();
}
private PullableSource mic() {
return new PullableSource.Default(
new AudioRecordConfig.Default(
MediaRecorder.AudioSource.MIC, AudioFormat.ENCODING_PCM_16BIT,
AudioFormat.CHANNEL_IN_MONO, 44100
)
);
}
@NonNull private File file() {
return new File(Environment.getExternalStorageDirectory(), "test.wav");
}
}
activityMain.xml：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".MainActivity">
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/main_screen"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@null"
android:baselineAligned="false"
android:clickable="false"
android:orientation="vertical"
android:padding="16dp">
<TextView
android:id="@+id/timerView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:paddingBottom="5dp"
android:text="00:00:00"
android:textColor="@android:color/black"
android:textSize="55sp"
android:textStyle="bold"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginTop="16dp"
android:gravity="center"
android:paddingBottom="8dp"
android:text="click microphone to record"
android:textAppearance="?android:textAppearanceMedium"
android:textColor="@android:color/black"/>
<Button
android:id="@+id/pauseResumeButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:text="@string/pause_recording"/>
<LinearLayout
android:id="@+id/containerView"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:gravity="center"
android:orientation="vertical">
<ImageView
android:id="@+id/recordButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/ic_microphone"/>
<ImageView
android:id="@+id/stopButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="40dp"
android:paddingBottom="5dp"
android:src="@drawable/ic_stop"/>
</LinearLayout>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<CheckBox
android:id="@+id/skipSilence"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:checked="false"
android:text="skip silence"/>
</LinearLayout>
</LinearLayout>
【问题讨论】：