Could you please move this to android-platform or another of the open source
groups?  Thanks.

On Sun, Nov 23, 2008 at 12:40 PM, Dorn Hetzel <[EMAIL PROTECTED]> wrote:

>
> David,
>
> Thank you very very much for the tips.  I've gotten as far as
> downloading the android source code (onto a clean ubuntu VM I built
> for the job) and doing an initial make (which generated quite a lot of
> whining level errors but seemed to complete ok).
>
> I'm so-so at Java but a pretty old hand at C/C++ so hopefully I will
> be able to work through the remaining steps.  Can you recommend any
> other similar interface classes I could examine for general clues?
>
> Once I get all this done, will the .so in the .apk be able to go
> through the marketplace and run on a real G1 or will I only be able to
> play with in on the emulator?
>
> In any case, I will write progress reports to the list and make the
> code available to all if I succeed.
>
> Best Regards,
>
> Dorn Hetzel
>
> On Fri, Nov 21, 2008 at 8:23 PM, davidsparks davidsparks
> <[EMAIL PROTECTED]> wrote:
> > The native interface is called AudioRecord.h. You'll need to download the
> > Android source code, write a JNI interface to AudioRecord, build a .so
> > library that you can include in your APK, write a Java wrapper class for
> it,
> > and then load the library from your Java wrapper.
> >
> > Hope that helps.
> >
> > Dave
> >
> > On Wed, Nov 19, 2008 at 11:22 AM, Dorn Hetzel <[EMAIL PROTECTED]> wrote:
> >>
> >> David,
> >>
> >> It looks like the MediaRecorder functionality is a non-start for my
> >> application since I need to process the audio as it is coming in, not
> >> some time later after the recording is complete.  Can you provide me
> >> some clue as to where to find information on the native interface,
> >> since I would rather be able to at least make some progress with the
> >> rest of my application while waiting for the next version.  Without
> >> some alternative to MediaRecorder I will be simply unable to proceed.
> >>
> >> Thanks!
> >>
> >> -Dorn
> >>
> >> On Wed, Nov 19, 2008 at 2:14 PM, [EMAIL PROTECTED]
> >> <[EMAIL PROTECTED]> wrote:
> >> >
> >> > It is the only supported method in SDK 1.0. There is a native
> >> > interface to audio input, but it will be changing in a future release
> >> > and I strongly advise against using it.
> >> >
> >> > On Nov 19, 8:26 am, dorn <[EMAIL PROTECTED]> wrote:
> >> >> Is the MediaRecorder the only method available to acquire audio from
> >> >> the microphone, or is there a lower level method available?
> >> >>
> >> >> On Nov 14, 4:59 pm, Dave Sparks <[EMAIL PROTECTED]> wrote:
> >> >>
> >> >> > The MediaRecorder is currently hardcoded for AMR-NB and is intended
> >> >> > for MMS messages.
> >> >>
> >> >> > You can expect improvements toaudiorecording in a future SDK.
> >> >>
> >> >> > On Nov 14, 12:26 pm, ste <[EMAIL PROTECTED]> wrote:
> >> >>
> >> >> > > I'm testing out the MediaRecorder'saudiorecording capability, and
> >> >> > > the quality of theaudiowas less then I was expecting. It was
> >> >> > > significantly lower then the quality you get while speaking on
> the
> >> >> > > phone, and sounded very digitized.
> >> >> > > I've tested both the 3gpp and MPEG_4 encoding options, and
> noticed
> >> >> > > the
> >> >> > > same quality.
> >> >> > > Has anyone else noticed this, and is this an issue with the
> phone's
> >> >> > > hardware or the MediaRecorder's capabilities? If it's the latter,
> >> >> > > is
> >> >> > > the quality of recording something which is planned to be
> improved?
> >> > >> >
> >> >
> >
> >
>
> >
>


-- 
Dianne Hackborn
Android framework engineer
[EMAIL PROTECTED]

Note: please don't send private questions to me, as I don't have time to
provide private support.  All such questions should be posted on public
forums, where I and others can see and answer them.

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