Android :: Playing Multiple Sounds - Application Crashes

Jun 14, 2010

Shown are a few lines of code. If I play a single sound, it runs fine. Adding a second sound causes it to crash.

private SoundManager mSoundManager;
/** Called when the activity is first created. */
@Override public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState); setContentView(R.layout.sos);
mSoundManager = new SoundManager(); mSoundManager.initSounds(getBaseContext());
mSoundManager.addSound(1,R.raw.dit); mSoundManager.addSound(1,R.raw.dah);
Button SoundButton = (Button)findViewById(R.id.SoundButton);
SoundButton.setOnClickListener(new OnClickListener() {
public void onClick(View v) { mSoundManager.playSound(1);
mSoundManager.playSound(2); } } ); }

Android :: Playing Multiple Sounds - Application Crashes


Android :: Playing Multiple Sounds At Same Time In Application

Apr 13, 2010

I am unable to use the following to code to play multiple sounds/beeps simultaneously. In my onclicklistener I have added
... public void onClick(View v) { mSoundManager.playSound(1);
mSoundManager.playSound(2); } ...
But this plays only one sound at a time, sound with index 1 followed by sound with index 2. How can I play atleast 2 sounds simultaneously using this code whenever there is an onClick() event?

public class SoundManager {
private SoundPool mSoundPool;
private HashMap<Integer, Integer> mSoundPoolMap;
private AudioManager mAudioManager;
private Context mContext;
public SoundManager() {
} public void initSounds(Context theContext) {
mContext = theContext; mSoundPool = new SoundPool(4, AudioManager.STREAM_MUSIC, 0);
mSoundPoolMap = new HashMap<Integer, Integer>();
mAudioManager = (AudioManager)mContext.getSystemService(Context.AUDIO_SERVICE);
} public void addSound(int Index,int SoundID)
{ mSoundPoolMap.put(1, mSoundPool.load(mContext, SoundID, 1));
} public void playSound(int index) {
int streamVolume = mAudioManager.getStreamVolume(AudioManager.STREAM_MUSIC);
mSoundPool.play(mSoundPoolMap.get(index), streamVolume, streamVolume, 1, 0, 1f);
} public void playLoopedSound(int index) {
int streamVolume = mAudioManager.getStreamVolume(AudioManager.STREAM_MUSIC);
mSoundPool.play(mSoundPoolMap.get(index), streamVolume, streamVolume, 1, -1, 1f);
} }

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Android :: Playing Multiple Sounds - Error Shown On Log

May 19, 2010

I'm playing some MediaPlayer instances at the same time (4 or 5) but sometimes when I try to start a new media player it doesn't work and an error is shown on the log:

E/AudioFlinger( 1073): no more track names availlable E/AudioTrack( 1073): AudioFlinger could not create track, status: -12 E/AudioSink( 1073): Unable to create audio track E/VorbisPlayer( 1073): mAudioSink open failed

It also happens when there're only 3 or 2 MediaPlayer playing at the same time. What does it mean this error? How can I workaround with it? Actually checking the isPlaying() after the start() call does not seem very helpful as every call returns true. I've to say that every MediaPlayer is created once via MediaPlayer.create.

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Android :: Playing Recorded Sounds In Application (Target 1.5)

May 1, 2009

I have an application that I developed using the Android 1.1 SDK that I am trying to port to Android 1.5. In my application, I record a sound through the microphone and then do various things with it, including playing it back using a MediaPlayer object. My code works fine when I use the 1.1 target, but when I use a 1.5 target I get this error when setting up the player:

Command PLAYER_SET_DATA_SOURCE completed with an error or info PVMFErrNotSupported error (1, -4) Couldn't setup MediaPlayer java.io.IOException: Prepare failed.: status=0x1 at android.media.MediaPlayer.prepare(Native Method) at org.byu.chum.AudioUtils.AudioRecording.stopRecording (AudioRecording.java:92) at org.byu.chum.SoundRecorder.Recorder$StopListener.onClick (Recorder.java:198)...

It seems like Android isn't liking the format of my media, but I don't know why, since I just recorded that very format on the Android device. Here's the code that is throwing the error:

player = new MediaPlayer();
try { player.setDataSource(recordFile.toString());
player.prepare(); } catch (IOException e) { Log.e("playRecording", "Couldn't setup MediaPlayer", e); }

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Feb 5, 2009

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Android :: Playing Sounds From Assets Folder

Nov 9, 2010

I have 5 mp3 files stored on the assets folder. The files are all 25 KB. I load the files using:
manager = context.getAssets();
this.inputStream = manager.openFd(fileName).createInputStream();
Whenever I try to play the files, the sounds are all messed up like they were mixed or something.
I've zip aligned the app already but with no results.

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Feb 16, 2009

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Sep 27, 2010

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Android :: Media Player Not Playing Sounds On Droid X

Jul 28, 2010

I have some pretty simple Soundboard applications on the Android Market that work flawless on an LG Ally, the Motorola Droid, and the Nexus One, but I recently received an e-mail from a user with the Motorola DroidX claiming that most of the sounds do not work. I've exchanged a few e-mails with him. He claims the Soundboard is the only application running, and he's double checked to make sure that the Media Volume wasn't set to minimum. I really don't have access to one either to play around with. The application isn't doing anything cosmic to play the sounds. Below is a code snippet. Any insights into what might be causing the hang up are greatly appreciated.

public void play(Sample sample) {
Log.v(TAG, "Playing: " + getString(sample.getButtonTextResId()) + " (" + sample.getSoundResId() + ")");
if (mPlayer != null) { mPlayer.stop(); mPlayer.release();
} MediaPlayer player = MediaPlayer.create(this, sample.getSoundResId());
mPlayer = player; if (player != null) { player.setVolume(1.0f, 1.0f);
player.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
@Override public void onCompletion(MediaPlayer mp) { mp.release();
mPlayer = null; } } ); player.start(); } }

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Jun 4, 2010

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HTC Wildfire :: Hissing When Playing Music And Other Sounds

Oct 15, 2010

I just noticed a very unpleasant thing about the wildfire - while listening to music (or when playing any other sound), I can hear subtle hissing in the background. It is almost unnoticeable when I'm outdoors and there's noise outside, but it prevents me from listening more quiet music like jazz at home.

Can anything be done about it? Do you people also hear that (you have to be in complete silence and use decent headphones - the hissing is easy to notice as it disappears after 2 or 3 seconds after you pause music). I was so happy about my wildfire - I have 16gb sdcard so I thought it would make a great mp3 player.

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Android :: Playing Multiple Audio Files

Oct 1, 2010

I think I should know this, but my mind has gone blank. I'm making an app that has a few hundred small sound files and I want it to play a certain file dependent on a String I pass to the function. Where I hit the brick wall is getting the resId of the sound file.

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Is it possible to set different notification sounds for different contacts? By this, specifically, can the Incredible be set to play one ringtone for my husband's texts and a different ringtone for my sister's texts? And if so, how?

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Nov 14, 2009

Suppose I want to start a song in Activity A see to it that it plays in Activity B when I move from Activity A to B Now after moving from Activity B to Activity C I want to stop that song and play another song.Please I need Help on this cant figure it out some how

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Android :: Playing AudioTrack Multiple Times Producing Crash

Mar 16, 2010

I am trying to play audio buffered sound (.wav) using AudioTrack. Please see the code below. I need to call this function under a Thread to support simultaneous play. It is fine being under a Thread. It is working fine playing the sound normally. But if i execute playing the sound using AudioTrack one after another continuously (i.e. executing second play before completing the first play sound), produces device crash (force close unexpectedly error). Does anyone come across such problems and resolve it in a way?

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Android :: Application Crashes Before It Starts

Nov 16, 2010

intentTest.java:
package intentTest.xyz.com;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button
public class intentTest extends Activity {
Button b;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
b = (Button) findViewById(R.id.b);
b.setOnClickListener( new View.OnClickListener() {
public void onClick(View view) {
Intent intent = new Intent(intentTest.this,seond.class );
startActivity(intent);
}});
}}
main.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="First screen"
/>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="click"
android:name="@+id/b"
/>
</LinearLayout>
seond.java:
package intentTest.xyz.com;
import android.app.Activity;
import android.os.Bundle;
public class seond extends Activity{
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.second);
} }
second.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="second screen"
/>

manifest.xml:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="intentTest.xyz.com"
android:versionCode="1"
android:versionName="1.0">
<application android:icon="@drawable/icon" android:label="@string/app_name">
<activity android:name=".intentTest"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".seond"></activity>
</application>
</manifest>

I get the following error code:
11-16 01:26:07.156: ERROR/AndroidRuntime(779): Uncaught handler: thread main exiting due to uncaught exception
11-16 01:26:07.166: ERROR/AndroidRuntime(779): java.lang.RuntimeException: Unable to start activity ComponentInfo{intentTest.xyz.com/intentTest.xyz.com.intentTest}: java.lang.NullPointerException
11-16 01:26:07.166: ERROR/AndroidRuntime(779):
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2401)
11-16 01:26:07.166: ERROR/AndroidRuntime(779):
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2417)
11-16 01:26:07.166: ERROR/AndroidRuntime(779):
at android.app.ActivityThread.access$2100(ActivityThread.java:116)
11-16 01:26:07.166: ERROR/AndroidRuntime(779):
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1794)
11-16 01:26:07.166: ERROR/AndroidRuntime(779):
at android.os.Handler.dispatchMessage(Handler.java:99)
11-16 01:26:07.166: ERROR/AndroidRuntime(779):
at android.os.Looper.loop(Looper.java:123)
11-16 01:26:07.166: ERROR/AndroidRuntime(779):
at android.app.ActivityThread.main(ActivityThread.java:4203)
11-16 01:26:07.166: ERROR/AndroidRuntime(779):
at java.lang.reflect.Method.invokeNative(Native Method)
11-16 01:26:07.166: ERROR/AndroidRuntime(779):
at java.lang.reflect.Method.invoke(Method.java:521)
11-16 01:26:07.166: ERROR/AndroidRuntime(779):
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791)
11-16 01:26:07.166: ERROR/AndroidRuntime(779):
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:549)
11-16 01:26:07.166: ERROR/AndroidRuntime(779):
at dalvik.system.NativeStart.main(Native Method)
11-16 01:26:07.166: ERROR/AndroidRuntime(779): Caused by: java.lang.NullPointerException
11-16 01:26:07.166: ERROR/AndroidRuntime(779):
at intentTest.xyz.com.intentTest.onCreate(intentTest.java:18)
11-16 01:26:07.166: ERROR/AndroidRuntime(779):
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1123)
11-16 01:26:07.166: ERROR/AndroidRuntime(779):
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2364)
11-16 01:26:07.166: ERROR/AndroidRuntime(779):
... 11 more

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My XML file:

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