Hi, the following code works for me.
I was also getting the "Start failed." error at one point. Fixed it by
changing my output file extension from ".3gpp" to ".audio"
-Ben
final String path = "/sdcard/recording" + System.currentTimeMillis() +
"_" + (int)(Math.random() * 1000)+ ".audio";
final MediaRecorder mr = new MediaRecorder();
mr.setAudioSource(MediaRecorder.AudioSource.MIC);
mr.setOutputFormat(MediaRecorder.OutputFormat.DEFAULT);
mr.setAudioEncoder(MediaRecorder.AudioEncoder.DEFAULT);
mr.setOutputFile(path);
mr.prepare();
mr.start();
//stop recording after 10 seconds
Timer t = new Timer();
t.schedule(new TimerTask() {
public void run() {
//stop recording
mr.stop();
mr.release();
}
}, 10*1000);
On Mar 5, 7:05 pm, jdl <j...@edufone.com> wrote:
> Hi Ben,
>
> Since the tutorial's currently broken, do you mind posting what values
> you put in instead of these broken lines:
> recorder.getMimeContentType()
> MediaStore.Audio.INTERNAL_CONTENT_URI;
>
> If you got everything working, would you be willing to post your code
> (since the tutorial's not yet updated)?
>
> Thanks,
>
> AN
>
> On Feb 26, 4:40 pm, benmccann <benjamin.j.mcc...@gmail.com> wrote:
>
> > >> each application has its own private data directory /
> > >> data/app-private/app-package. I believe your working directory is set
> > >> to this directory by default
>
> > Cool. So it sounds like I should just be able to use a relative path
> > from the current location then. Unfortunately, I'm getting the
> > following exception (with no clues as to why start is failing):
>
> > 02-26 14:34:55.132: ERROR/AndroidRuntime(164):
> > java.lang.RuntimeException: startfailed.
> > 02-26 14:34:55.132: ERROR/AndroidRuntime(164):
> > atandroid.media.MediaRecorder.start(Native Method)
>
> > Here's my code:
>
> > final MediaRecorder recorder = new MediaRecorder();
> > recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
> > recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
> > recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
> > recorder.setOutputFile("test.3gpp");
> > recorder.prepare();
> > recorder.start();
>
> > On Feb 26, 12:14 am, Dave Sparks <davidspa...@android.com> wrote:
>
> > > You can get the path to external storage (e.g. SD card) with
> > > Environment.getExternalStorageDirectory(). This is world read/
> > > writable.
>
> > > Alternatively, each application has its own private data directory /
> > > data/app-private/app-package. I believe your working directory is set
> > > to this directory by default. This is onboard flash, so it will
> > > survive the user ejecting an SD card. However, there is a limited
> > > amount to go around, so you don't want to store monster media files
> > > there.
>
> > > On Feb 25, 9:22 pm, benmccann <benjamin.j.mcc...@gmail.com> wrote:
>
> > > > >> setOutputFile() expects a path to where you want the file stored.
>
> > > > Yep, figured that much by the method name, but what's a valid path? I
> > > > mean I'm figuring it's UNIX-like, but other than that I'm in the
> > > > dark. Is there a preferred place for apps to store data? Are there
> > > > certain directories that I have permission to write to? What
> > > > directories exist on the device by default? It'd be nice for the docs
> > > > on data storage to mention any of these
> > > > things:http://developer.android.com/guide/topics/data/data-storage.html
>
> > > > >> You can take a look at the source to SoundRecorder in the open
> > > > >> source tree for some working code
>
> > > > Thanks for the example. This would be a much better example than the
> > > > one in the docs that won't compile and implies content must first be
> > > > added to a database:
> > > > http://developer.android.com/guide/topics/media/index.html
>
> > > > On Feb 24, 8:03 pm, Dave Sparks <davidspa...@android.com> wrote:
>
> > > > > setOutputFile() expects a path to where you want the file stored.
>
> > > > > You can take a look at the source to SoundRecorder in the open source
> > > > > tree for some working code:
>
> > > > >http://android.git.kernel.org/?p=platform/packages/apps/SoundRecorder...
>
> > > > > On Feb 24, 4:43 pm, benmccann <benjamin.j.mcc...@gmail.com> wrote:
>
> > > > > > Hi,
> > > > > > I'd like to create anaudiorecordinginAndroid. (Actually, I just
> > > > > > want access to the mic withoutrecordingit, but it seems that's not
> > > > > > supported so I'll have to create arecordingand tail the file).
> > > > > > I'm having a very hard time getting started. Mostly I'm just hoping
> > > > > > that someone from Google reads this and will update the
> > > > > > documentation
> > > > > > because the example won't compile - it looks like it's from some
> > > > > > previous version of the SDK because there's an error in every other
> > > > > > line. I made my best guess as to what the usage should be, but I
> > > > > > keep
> > > > > > getting a number of different exceptions.
> > > > > > One question I had is whether I can just specify an arbitrary path
> > > > > > to
> > > > > > the MediaRecorder to startrecordingor whether I have to create an
> > > > > > entry in the content database. The JavaDoc for
> > > > > > MediaRecorder.setOutputFile isn't clear on what it's expecting.
>
> > > > > > Thanks,
> > > > > > Ben
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