Android :: Determining Audio Format Of Audio Files

May 8, 2010

Is there a way to determine the audio format of an audio file in Android? On normal java I do it like this:

File file= new File(...);
AudioInputStream stream = AudioSystem.getAudioInputStream(file);
AudioFormat format= stream.getFormat();

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Android : Need To Record Audio - Video Recording Files In 3gp / Mp4 Format

Jul 19, 2010

I need to record audio and video files in 3gp/mp4 format at the same file and same time.

When i run my application file is created with videofile.3gp but video does not record in sd card on the emulator.please let me clear one thing does video records on the emulator? if i run this code on android supported device do these error clear.
Please help me. I am new to this topic.please find the code and errors below.

package com.video;

* @copy Rights
* audio.java
* sample code for Eminosoft Developerworks Article
* Android development Team
* www.eminosoft.cm

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import android.app.Activity;
import android.content.ContentResolver;
import android.content.ContentValues;
import android.content.Context;
import android.content.Intent;
import android.media.MediaPlayer;
import android.media.MediaRecorder;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.provider.Settings;
import android.util.Log;
import android.view.View;
import android.widget.Button;

public class video extends Activity {

public MediaRecorder mrec = null;
private Button startRecording = null;
private Button stopRecording = null;
private static final String TAG = "SoundRecordingDemo";
File audiofile;
File video;
private MediaPlayer mMediaPlayer;}

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May 23, 2010

Does anyone know if there is a way for either meridian or the regular android player to recognize audio tags on lossless audio files?

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Android :: Combine Only One Audio File From Two Audio Files

Oct 2, 2010

I want combine two audio files. (A audio file + B audio file = AB audio file)So, my search result is:

1. useing an AudioTrack.

2. decode PCM from audio file.

3. combine PCM.

This is currect? It there another way?

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Android :: Decode MP3 Audio Data To PCM Audio Format In Android

Dec 9, 2009

I am streaming an MP3 audio and instead making this MP3 audio to play, I want it to be converted to PCM format and pass this PCM audio to AudioTrack(as it takes PCM data as input.) instead of passing my MP3 stream to MediaPlayer. Can anyone please help me to convert the MP3 to PCM stream?

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Jan 22, 2010

Does such a thing exist please folks - want to rip some audio for an mp3 ringtone from a comedy video clip

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Android :: Streaming Audio AAC Format

Jun 22, 2010

I have developed a streaming app for Android. My app is streaming AAC audio.The app works fine on 1.5, 1.6, and 2.1.  I tested it on Froyo, the android 2.2 and it does not work there.I have try everthing  - Streaming directly from server url  - Download incrementaly the content, store in a temp file, start reading.  - Download incrementaly the content, store in a ContentProvider and start reading.No luck, I always got errors :    06-23 02:47:02.257: ERROR/MediaPlayer(266): Unable to to create media player 06-23 02:47:02.257: INFO/System.out(266): setDataSourceFD failed.: status=0x80000000 Does Froyo support AAC? Anyone happens to stream AAC?

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Dec 20, 2009

How to record audio into ogg format?

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HTC Incredible :: No Video Only Audio (MP4 File Format)

Jun 24, 2010

The HTC web site claims support for .mp4 and .wmv playback but I have had no luck. I have used various programs from HandBrake to Sony and I can get audio with no video (mp4). I can get audio with still image video (wmv). The DI seems very picky as to which videos it will actually play back. Is there a recommended way to convert my videos / DVS into a format the DI can play?

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Android :: Improper Audio Format While Using AudioRecord API / What To Do?

Oct 12, 2010

I am doing recording in following way and storing byte array in a binary file. But the binary file I am getting is not in any format. what can be the problem? code...

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Android : Mp3 Encoder - Record Audio In Mp3 Format

Aug 2, 2010

I want to record audio in MP3 format in my android application. I know I can read PCM audio using the audioRecord class. Is there a java library compatible with android that will encode PCM to MP3? Is it possible to use the Lame mp3 encoder library?

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Android :: Directory To Store Files Generated By App (audio, Video Files Or Images)?

Apr 24, 2009

Can anybody advice what is the recommended directory to store files generated by your application: audio files, video files or some images.

If the phone contains SD card, it is clear that files should be saved there, but if there is no any external storage. where would you recommend to save to?

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Android :: Native MediaPlayer Plays Audio But Not Video - 3gp Format

Jun 16, 2009

I have the following native source code that is supposed to display video. It plays 3gp file ok and I can hear the audio, but the video is not shown.

CODE:..............

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Android :: Want To Record Audio In WAV Format / Phone Supports *.3gp - *.AMR Type

May 14, 2009

Now i want to record audio in WAV format. What should i do now because android only supports *.3gp or *.AMR type?

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Android :: Retrieve Files Or Audio Files Programmatically From Device

May 11, 2010

I want to know how to get the ringtone,audio files in the device and I want set them as alarm. I am working in the code to set the alarm and I want to know how to retreive audio or ringtones from the device.

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Android :: How To Record Audio From Mic In Raw Pcm Format Into A Buffer Using Native Libraries Directly

Oct 9, 2009

My application cannot handle the JNIE overhead, as I need to make 2 JNIE calls to the native C/C++ code for every 20msec. So I am trying to use the native media libraries and the realted C/C++ files provided by Android in the folder "//external/srec/audio/test" of the donut build. Ex. AudioHardwareRecord, AudioInRecord etc.. I am implementing all the calls in the native layer.

I am using the sampling rate as 8000 and want to read 160 samples (320 bytes) at a time.

I used the following values to create the AudioRecord..

CODE:..........

It says "success" after creating this interface but I am getting the error "Bad Value" if I am doing the InitCheck.

And it is crashing once I start reading the samples or if I try to retrieve the configured sampling rate.

Has anybody tried to access this native code?

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Android :: Analog To IOS Core Audio / Audio File Stream Services?

Sep 22, 2010

Is there an Android equivalent to the iOS Core Audio / Audio File Stream Services? I need to be able to read audio bytes from a network and feed them to the audio system under my control, so I can do my own timeouts / reconnects / range requests / etc. without interrupting the audio playback (since the system audio thread would be playing audio already enqueued). It seems that MediaPlayer doesn't give me this level of control. Is there a lower-level framework that does, either in the SDK or NDK?

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May 5, 2010

I connected my phone via USB to my RR sport to upload audio files to the RR hard drive. However, I keep getting connection error. Apparently my device is not being recognized as a storage. I did the unmount thinking. Also, I am wondering how I can play audio from my phone through the RR audio system.
RR is 2010.

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Oct 17, 2010

I want to record a sample from the microphone, then I want to play the recorded file maximizing the volume and apply some audio effect, like modifing sample rate or addind an echo.Waht is the best way? is there an example?

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Android :: Audio Record And Play Recorded Audio

Jun 2, 2009

Could you please let me know how to do the audio record in android emulator and play the same recorded audio. Could you please help me in proceeding in development.I tried with MediaPlayer API's also.Its not working.

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Samsung Galaxy S :: Audio Codecs /can't Hear Any Audio

Jun 28, 2010

I have a 720p video that I am trying to play on GS. The image is amazing by the way. But I can't hear any audio (works fine on my PC). Anything wrong with the audio codec used?

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Android :: AMR Audio Files To WAV/MP3

Jan 20, 2010

I've recorded audio in my Android application in its AMR format and I'd like to convert these to something that I can more easily use, such as WAV or MP3.

I've found some online instructions for this, for instance: http://www.aquarionics.com/2004/08/04/how_to_convert_amr_files_to_mp3/

which say to start with the 3GPP reference solutions to convert AMR to WAV, and then use sox and lame from there.

I compiled this code and tried to convert my AMR file, but it seg faults. I think this is because Android's AMR files are wrapped in a 3GP container. There is some code online about how to unwrap the AMR files (http://www.benmccann.com/dev-blog/extracting-amr-audio-from-android-3gp-files/), but I can't seem to get it to work and it seems like a lot of extra trouble just to get the audio from these files.

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Android :: How To Play Audio Files One After Other

Jul 20, 2010

I have multiple audio files in the assets directory of my application. When the user clicks a button I want to play those files in a certain order, one after the other. There shouldn't be any noticeable lag between the audio files. What is the best approach to achieve this? I am thinking of using MediaPlayer objects and OnCompletionListeners. But, that would mean I have to create a lot of OnCompletionListeners because I need to know every time which audio file is next. Am I missing something or is there a better approach?

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Sep 8, 2009

I am developing an application in which i need to merge and split audio recording.Can anyone give me a hint how to get it done in android? Does it require any external jar?

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Samsung Fascinate :: No Audio With MOV Files / Why Is So?

Sep 16, 2010

Any ideas why?

These are downloaded video podcasts, by the way. I can play MP4 files with A/V just fine. Really annoying...

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HTC Incredible :: Get .wav Audio Files On Phone?

May 5, 2010

Any way to get the phones to play .wav audio files?

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Nov 23, 2010

Ok so I see a lot of people saying they are having problems with video playback when importing from their SD Card but Im having the opposite problem.

I just switched over from the Metro PCS Samsung Code which is a Windows 6 phone to EVO and I put my SD Card in my EVO. All my music files play and the mp4 video files play but the audio from the mp4 video files dont. Does anyone have advice on how to fix this?

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Sep 18, 2010

I'm new to the Droid world, formerly a blackberry queen, and my oh my do I have a lot to learn.My question is simple, I had some audio files sent to me, and I saved them, but now I can't find them anywhere.Also, is there a way to set my ringtone (for incoming calls and texts) as one of my saved audio files that was sent to me?

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Android :: Store Audio Files For Use In Application?

Oct 14, 2010

I've created an application which uses around 15 small audio files. Right now I'm using mp3 files and each is around 200KB. These files are stored in my res/raw directory. I'm using SoundPool class to play the files in my application. I'm hoping to put this application on the android market place. Can one of you suggest what is the best way to store so many audio files? Will my application be scalable? Is wav or ogg format better approach instead of mp3? Please let me know.

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HTC Desire :: Don't Put Audio Files In Media Player

Jul 23, 2010

I'm still trying to get to grips with the folder/filing system of the Desire's SD card. I have yet to put any of my own MP3's onto the phone but have put on a few short audio clips which I created at work. These were on the phone mainly so I could transport them home but I also occasionally play them from the phone. However I don't want them cropping up amongst music in the music player app/widget, but it seems no matter where I put them on the SD card they appear. The only exception is if I put them in media => ringtones which isn't ideal. Are there any other places where i can put them where they won't be found by the media 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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Sep 14, 2010

Is there a way to do it? I have a Mac with my music and I have Astro File Manager but I'm not sure if that's possible...

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Android :: Audio Files Return 0 From MediaPlayer.getDuration()

Apr 8, 2009

Some audio files return 0 from MediaPlayer.getDuration(), even though they're perfectly valid files that play ok and that players on Windows can find the duration of. There seem to be two different cases here: certain file types such as .wma and .wav always return 0 duration, and others only do so sometimes.  I haven't been able to find any pattern in the latter case, but it does seem consistent per file. The music player displays 0:00 duration for these, so it's not just my code.

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Android :: Where To Put 45 MB Files / Play List Of Audio In My Application

May 29, 2009

I am new to android and i need to play list of audio files in my application. but where can i put all the audio files as its large in size around 45 MB ? and how can i access it?

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Android :: List Audio Files In A Listview In Droid?

Jan 29, 2010

I am new to this android application development.

I have a audio files in a particular directory. I want to list the those audio files in a listView.

please tell me how to do this activity.

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Media :: Player To Handle MP4 AVC Files With A 5.1 AAC Audio Stream?

Aug 1, 2010

Does anyone know of a player that will handle MP4 AVC files with a 5.1 AAC audio stream? The video plays just fine but none of the players seem capable of "downmixing" to stereo.

I did find one that would play the sound all garbled. I'd hate to have to recode my entire library to stereo to use it on my phone.

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Android : How To Get Data About All Audio Files In Device Using MediaAudio

May 4, 2010

I've been trying to understand how to get data about all the audio files in the device using MediaAudio but unfortunately the documentation is far from clear. Also, thereīs almost nothing about it on the forum right now and I couldnīt find good resources over the internet.

Iīve seen pretty quick and objective examples on how to access the main information from the containers but I couldnīt find in any place how I could get the names of the tracks (MediaStore.Audio.AudioColumns doesnīt have an specific constant for it) and the most important, how I could retrieve the path for the media (audio file in this case) Iīve found using the info on MusicStore.Audio.

am I missing something here? It seems it should be so easy but I canīt find the info! Also if I change any data on the container, will this data be also changed in the real file as well?

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Mar 29, 2010

Still waiting for my Desire to arrive, but I read on coolsmartphone that people were having difficulty with the BBC iplayer. I was under the impression that the Desire handeled flash. does anyone have any comments? Can you listed / watch the embedded audio/video files on the BBC wedsites?

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Jun 11, 2010

I have an audio file in .3gp format on my Android device which I wish to upload to YouTube. I know that YouTube is a video upload site and that I need to convert this sound file to video. I just want an image to display all the time the audio is playing. Google tells me there are number of tools that can help me. But I want to do this via java code from my Android device.

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Android :: Support Receiver Mode For Playing Audio Files?

Nov 16, 2010

I have a requirement where I need to play an audio file in receiver mode(earpiece).I am not sure whether higher versions of Android SDK supports this receiver mode.I went through some links which said about 1.5/1.6 having changes in these Audio APIs and hence not sure.

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Android :: Bad Sound Quality When Recording / Playing Audio Files

Oct 16, 2010

Hey, I have a problem with android programing when I try to record and then play the file that was just recored. I can both record and play the sound but the quality stinks. Its not just bad is really hard to listen to and sound abit like its a computer generated voice. I use the andriod SDK-emulator. The code that sets up the recording looks like this;

MediaRecorder recorder = new MediaRecorder();
recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
recorder.setOutputFormat(MediaRecorder.OutputFormat.RAW_AMR);
recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
recorder.setOutputFile(path);
recorder.prepare();
recorder.start();

And the code playing the file later looks like this;
MediaPlayer mp = new MediaPlayer(); mp.reset();
mp.setDataSource(path); mp.prepare(); mp.start();
I don't know what part that makes the audio file sound really bad or if its just the emulator that makes it bad and that it would work on a real phone.

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Sep 24, 2010

Is there any way that you can move files such as audio files to the internal memory without using a custom ROM? I'd like to transfer a notification alert sound from my SD card an put it on the phone itself.

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Android : Handle Runtime Exception On Playing Audio Files?

Mar 15, 2010

I have a button that plays an audio file on its click listener. If the button is clicked again and again while the audio file is being played then the app crashes. What's the solution?

Here is some code for reference...

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Sep 18, 2010

I developed one app it is displaying image and play audio along with the image.for this application i want to get images and audio files from remote server and store those on inside apk

1) i heard about sqllite in mobile.is this database hold image,mp3 files
2) i don't want to store images sd card.

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Android :: Video And Audio Format Supported By Android

Jan 28, 2009

i want to knw what r the Audio and Video format r supported by Android by Default is thier any plug-ins needs to be add in to SDK .

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