How to develop voice recognizing app like Talking Tom?
1. My request is how to recognize the voice without any events like buttons, touch events)
2. All voice recording sample containing through button, but my requirement is recognizing voice when user talk on that time recording voice and when user stop voice it automatically modify the voice in some other voice like Tom or parrot
3. I have done through button
My .java
File storageDir = new File(Environment.getExternalStorageDirectory(), "SRAVANTHI");
storageDir.mkdir();
Log.d(APP_TAG, "Storage directory set to " + storageDir);
outfile = File.createTempFile("hascode", ".3gp", storageDir);
// init recorder
recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
recorder.setOutputFile(outfile.getAbsolutePath());
// init player
player.setDataSource(outfile.getAbsolutePath());
try {
recorder.prepare();
recorder.start();
recording = true;
} catch (IllegalStateException e) {
Log.w(APP_TAG, "Invalid recorder state .. reset/release should have been called");
} catch (IOException e) {
Log.w(APP_TAG, "Could not write to sd card");
}
recorder.stop();
for play button
try {
playing = true;
player.prepare();
player.start();
} catch (IllegalStateException e) {
Log.w(APP_TAG, "illegal state .. player should be reset");
} catch (IOException e) {
Log.w(APP_TAG, "Could not write to sd card");
}
What about checking sound volume first, recording only after it is over certain value?
Maybe this will be usefull:
android: Detect sound level
Related
so from my understanding is that the mediarecorder saves audio samples and binds them with a timeStamp to be able to seek through the audio file later (by the help of a prgressbar):
recorder = new MediaRecorder();
recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
recorder.setOutputFile(fileName);
recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
try {
recorder.prepare();
} catch (IOException e) {
Log.e(LOG_TAG, "prepare() failed");
}
recorder.start();
My question
Is there any way to get these timestamps of audio samples real time while recording a voice?
please I need your help.
I have created functionality to record video in my app.
When I play a song, that song is recorded with video and a video file is created, similar to a dubshmash application.
Now the problem that I am facing is that other voices such as near by sounds also get recorded. The song file is recorded in the video record screen and I play the song when video recording activity launches.
How can I have my application record only song with video?
mediaRecorder.setAudioSource(MediaRecorder.AudioSource.CAMCORDER);
mediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
mediaRecorder.setProfile(CamcorderProfile.get(CamcorderProfile.QUALITY_HIGH));
Is there any solution in audio source set as a speaker , because song sound going through a speaker? if is it another possible way please reply me.
You can record video without audio and merge audio later on using mp4 parser like this:
/*
* #param videoFile path to video file
* #param audioFile path to audiofile
*/
public String mux(String videoFile, String audioFile) {
Movie video = null;
try {
video = new MovieCreator().build(videoFile);
} catch (RuntimeException e) {
e.printStackTrace();
return null;
} catch (IOException e) {
e.printStackTrace();
return null;
}
Movie audio = null;
try {
audio = new MovieCreator().build(audioFile);
} catch (IOException e) {
e.printStackTrace();
return null;
} catch (NullPointerException e) {
e.printStackTrace();
return null;
}
int size = audio.getTracks().size();
Track audioTrack = audio.getTracks().get((size - 1));
video.addTrack(audioTrack);
Container out = new DefaultMp4Builder().build(video);
File myDirectory = new File(Environment.getExternalStorageDirectory(), "/Folder Name");
if (!myDirectory.exists()) {
myDirectory.mkdirs();
}
filePath = myDirectory + "/video" + System.currentTimeMillis() + ".mp4";
try {
RandomAccessFile ram = new RandomAccessFile(String.format(filePath), "rw");
FileChannel fc = ram.getChannel();
out.writeContainer(fc);
ram.close();
} catch (IOException e) {
e.printStackTrace();
return null;
}
return filePath;
}
In build.gradle add following dependency
compile 'com.googlecode.mp4parser:isoparser:1.0.5.4'
If you want to working with video then you have to use FFMPEG library
That can be you can work with Video.
That for i have already give answer to How to use ffmpeg in android studio? see this LINK. Go step by step and import in your project
You can use a MediaRecorder without calling setAudio* on it.
remove this line
mediaRecorder.setAudioSource(MediaRecorder.AudioSource.CAMCORDER);
see this link
There is currently no way to directly record android output without "background noise".
Note that this is a security concern to restrict access to other apps audio output, therefore it is very unlikely that it could be achieved directly.
See this answer
I have created functionality to record video in my app.
When I play a song, that song is recorded with video and a video file is created, similar to a dubshmash application.
Now the problem that I am facing is that other voices such as near by sounds also get recorded. The song file is recorded in the video record screen and I play the song when video recording activity launches.
How can I have my application record only song with video?
mediaRecorder.setAudioSource(MediaRecorder.AudioSource.CAMCORDER);
mediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
mediaRecorder.setProfile(CamcorderProfile.get(CamcorderProfile.QUALITY_HIGH));
Is there any solution in audio source set as a speaker , because song sound going through a speaker? if is it another possible way please reply me.
You can record video without audio and merge audio later on using mp4 parser like this:
/*
* #param videoFile path to video file
* #param audioFile path to audiofile
*/
public String mux(String videoFile, String audioFile) {
Movie video = null;
try {
video = new MovieCreator().build(videoFile);
} catch (RuntimeException e) {
e.printStackTrace();
return null;
} catch (IOException e) {
e.printStackTrace();
return null;
}
Movie audio = null;
try {
audio = new MovieCreator().build(audioFile);
} catch (IOException e) {
e.printStackTrace();
return null;
} catch (NullPointerException e) {
e.printStackTrace();
return null;
}
int size = audio.getTracks().size();
Track audioTrack = audio.getTracks().get((size - 1));
video.addTrack(audioTrack);
Container out = new DefaultMp4Builder().build(video);
File myDirectory = new File(Environment.getExternalStorageDirectory(), "/Folder Name");
if (!myDirectory.exists()) {
myDirectory.mkdirs();
}
filePath = myDirectory + "/video" + System.currentTimeMillis() + ".mp4";
try {
RandomAccessFile ram = new RandomAccessFile(String.format(filePath), "rw");
FileChannel fc = ram.getChannel();
out.writeContainer(fc);
ram.close();
} catch (IOException e) {
e.printStackTrace();
return null;
}
return filePath;
}
In build.gradle add following dependency
compile 'com.googlecode.mp4parser:isoparser:1.0.5.4'
If you want to working with video then you have to use FFMPEG library
That can be you can work with Video.
That for i have already give answer to How to use ffmpeg in android studio? see this LINK. Go step by step and import in your project
You can use a MediaRecorder without calling setAudio* on it.
remove this line
mediaRecorder.setAudioSource(MediaRecorder.AudioSource.CAMCORDER);
see this link
There is currently no way to directly record android output without "background noise".
Note that this is a security concern to restrict access to other apps audio output, therefore it is very unlikely that it could be achieved directly.
See this answer
I am trying to add effect in audio, I have recorded audio using MediaRecorder and added effects using SoundPool class now I am trying to save the effected sound but I found that sound i can't store a sound using SoundPool. Can any one please give a way to move on I am posting my code that records the sound and play it ...
Thanks in advance
mediaRecorder = new MediaRecorder();
mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
mediaRecorder.setAudioEncoder(MediaRecorder.OutputFormat.AMR_NB);
mediaRecorder.setOutputFile(getFilePath() + getFilename());
try {
mediaRecorder.prepare();
mediaRecorder.start();
setFlagRecording(true);
} catch (IllegalStateException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
and to play sound
soundPool.play(getStreamID(), 1, 1, 0, 0, getFrequency());
I have an app that encodes in amr_nb format and output the file in amr. I want the recorded file to be broken into a series of amr files of 2 KB each. Got no clue on how to achieve this.
Here is the function called upon clicking Record Button
private void startRecording() {
recorder = new MediaRecorder();
recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
recorder.setOutputFormat(MediaRecorder.OutputFormat.AMR_NB);
recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
recorder.setOutputFile(getFilename());
recorder.setOnErrorListener(errorListener);
recorder.setOnInfoListener(infoListener);
try {
recorder.prepare();
recorder.start();
} catch (IllegalStateException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
Here is the method called upon clicking Stop Button,
private void stopRecording() {
if (null != recorder) {
recorder.stop();
recorder.reset();
recorder.release();
recorder = null;
}
}
http://developer.android.com/reference/android/media/MediaRecorder.html#setMaxFileSize(long)
Then register your listener to MediaRecorder that gets a callback when the max file size is reached, then set up MediaRecorder to record the next file. Be aware there's a (good?) chance this will not produce a series of gapless files.