Recorder = new MediaRecorder();
Recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
Recorder.setOutputFormat(MediaRecorder.OutputFormat.RAW_AMR);
Recorder.setOutputFile(FileName);
Recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
这是我的代码，我无法记录其他人的声音。那么我应该使用什么而不是AudioSorce.MIC。 请帮助我
答案 0 :(得分：4)
很抱歉让你失望，但你不能，不是一般情况下。大多数Android运行的手机都有硬件/固件接线，因此呼叫媒体根本不会通过应用处理器 - 它从音频到DSP，反之亦然，因此您无法访问它。
您可以使用手机捕捉到该人的音频，但不是相反，无视愚蠢的黑客，例如要求此人使用扬声器并通过手机麦克风录制声音......
答案 1 :(得分：3)
class MyPhoneStateListener extends PhoneStateListener implements SensorEventListener {
Context context;
AudioManager audioManager;
MediaRecorder recorder;
private SensorManager mSensorManager;
private Sensor myLightSensor;
private boolean CallState;
private float sensorState;
public MyPhoneStateListener(Context context) {
this.context = context;
mSensorManager = (SensorManager) this.context.getSystemService(Context.SENSOR_SERVICE);
myLightSensor = mSensorManager.getDefaultSensor(Sensor.TYPE_PROXIMITY);
audioManager = (AudioManager) this.context.getSystemService(Context.AUDIO_SERVICE);
if (myLightSensor == null){
Log.i("On Receive", "Not Support");
}else{
mSensorManager.registerListener(this,myLightSensor,SensorManager.SENSOR_DELAY_NORMAL);
}
}
public void onCallStateChanged(int state, String incomingNumber) {
switch (state) {
case TelephonyManager.CALL_STATE_IDLE:
System.out.println("My Call IDLE");
CallState = false;
StartAudioSpeacker();
StopRecording();
System.out.println("Is phone speaker : "+ audioManager.isSpeakerphoneOn());
if (audioManager.isSpeakerphoneOn()) {
audioManager.setSpeakerphoneOn(false);
mSensorManager.unregisterListener(this);
}
break;
case TelephonyManager.CALL_STATE_OFFHOOK:
System.out.println("My Call OFFHOOK");
CallState = true;
StartAudioSpeacker();
StartRecording();
System.out.println("Is phone speaker : "+ audioManager.isSpeakerphoneOn());
break;
case TelephonyManager.CALL_STATE_RINGING:
System.out.println("My Call RINGING");
break;
}
}
@Override
public void onAccuracyChanged(Sensor sensor, int accuracy) {
if (sensor.getType() == Sensor.TYPE_PROXIMITY) {
Log.i("Sensor Changed", "Accuracy :" + accuracy);
}
}
public void onSensorChanged(SensorEvent event) {
if (event.sensor.getType() == Sensor.TYPE_PROXIMITY) {
Log.i("Sensor Changed", "onSensor Change :" + event.values[0]);
sensorState = event.values[0];
StartAudioSpeacker();
}
}
public void StartAudioSpeacker(){
if (CallState && sensorState == 1.0) {
audioManager = (AudioManager) this.context.getSystemService(Context.AUDIO_SERVICE);
audioManager.setSpeakerphoneOn(true);
audioManager.adjustStreamVolume(AudioManager.STREAM_MUSIC,AudioManager.ADJUST_RAISE, AudioManager.FLAG_SHOW_UI);
audioManager.setStreamVolume(AudioManager.MODE_IN_CALL, audioManager.getStreamMaxVolume(AudioManager.MODE_IN_CALL), 1);
System.out.println("Is phone speaker : "+ audioManager.isSpeakerphoneOn());
}else{
audioManager = (AudioManager) this.context.getSystemService(Context.AUDIO_SERVICE);
audioManager.setSpeakerphoneOn(false);
audioManager.setStreamVolume(AudioManager.MODE_IN_CALL, audioManager.getStreamMaxVolume(AudioManager.MODE_IN_CALL), 1);
System.out.println("Speaker Volume :"+ audioManager.getStreamMaxVolume(AudioManager.MODE_IN_CALL));
System.out.println("Is phone speaker : "+ audioManager.isSpeakerphoneOn());
}
}
public void StartRecording(){
recorder = new MediaRecorder();
recorder.setAudioSource(MediaRecorder.AudioSource.VOICE_CALL);
recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
recorder.setOutputFile(this.getFullSdPath());
try {
recorder.prepare();
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
recorder.start(); // Recording is now started
Log.i(this.getClass().getName(), "Start Recording");
}
public void StopRecording(){
recorder.stop();
recorder.reset();
recorder.release();
Log.i(this.getClass().getName(), "Stop Recording");
}
public String getFullSdPath(){
File sdCard = new File(Environment.getExternalStorageDirectory() + "/RecordMyVoice");
if (!sdCard.exists()) {
sdCard.mkdir();
}
File file = new File(Environment.getExternalStorageDirectory()+"/RecordMyVoice/",new Date().getTime()+".3gp");
System.out.println("Full path of record sound is : "+file.getAbsolutePath());
return file.getAbsolutePath();
}
}
答案 2 :(得分：1)
正如我所知，我已经完成了这种工作。我的意思是用户的声音和其他人的声音。我们使用了特定工厂提供的一部手机的定制ROM，他们也修改了一些ROM的安全机制。另一种方法你可以试试这个：
答案 3 :(得分：0)
尝试使用此代码录制电话。
AudioManager audioManager;
private MediaRecorder myAudioRecorder;
//Myservice m=new Myservice();
private String outputFile = null;
String uid=null;
String no=null;
String rname=null;
public void record(Context c,String no, String ser){
try{
this.no=no;
uid=ser;
rname=String.format("%d.mp3", System.currentTimeMillis());
//rname="/#"+uid+"#"+rname;
outputFile = Environment.getExternalStorageDirectory().toString() + "/Android/free"+"/#"+uid+"#"+no+"#"+rname;
StartAudioSpeacker();
myAudioRecorder=new MediaRecorder();
myAudioRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
myAudioRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
myAudioRecorder.setAudioEncoder(MediaRecorder.OutputFormat.AMR_NB);
myAudioRecorder.setOutputFile(outputFile);
}catch(IllegalStateException e){e.printStackTrace();}
try {
myAudioRecorder.prepare();
myAudioRecorder.start();
} catch (IllegalStateException | IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public void getc(Context c) {
// TODO Auto-generated method stub
this.c=c;
}
public void st()
{ //Toast.makeText(;, "recorded",Toast.LENGTH_LONG).show();
try{
myAudioRecorder.stop();
myAudioRecorder.release();
myAudioRecorder=null;
}
catch(IllegalStateException e)
{
e.printStackTrace();
}
Handler h=new Handler();
h.postDelayed(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
try{
uprecord ur=new uprecord("/#"+uid+"#"+no+"#"+rname);
ur.tt();
}catch(IllegalStateException e){e.printStackTrace();} }
}, 1000);
}
public void StartAudioSpeacker(){
audioManager = (AudioManager) c.getSystemService(Context.AUDIO_SERVICE);
audioManager.setSpeakerphoneOn(false);
audioManager.setStreamVolume(AudioManager.MODE_IN_CALL, audioManager.getStreamMaxVolume(AudioManager.MODE_IN_CALL), 1);
System.out.println("Speaker Volume :"+ audioManager.getStreamMaxVolume(AudioManager.MODE_IN_CALL));
System.out.println("Is phone speaker : "+ audioManager.isSpeakerphoneOn());
}
}
答案 4 :(得分：-1)
如果您尝试将音频文件存储到SD卡，请尝试使用此代码。它会正常工作。
protected void startRecording() {
mFileName = Environment.getExternalStorageDirectory().getAbsolutePath();
mFileName += "/audiorecordtest.3gp";
mRecorder = new MediaRecorder();
mRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
mRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
mRecorder.setOutputFile(mFileName);
mRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
try {
mRecorder.prepare();
} catch (IOException e) {
Log.e(LOG_TAG, "prepare() failed");
}
mRecorder.start();
}
}
答案 5 :(得分：-1)
我没有在手机上试过，但根据文档MediaRecorder.AudioSource，您应该使用
MediaRecorder.AudioSource.VOICE_CALL
代替
MediaRecorder.AudioSource.MIC
希望有效