Compress Audio from Microphone

Hi, I am developing an app that records voice from mic and needs to save it in the disk then send it via email. I got it no problem. I get the bytes and tranform it to wav format using the WAVWriter class.
But the wav file is HUGE. As I said, I need to send it via Email. A 10 seconds wav file is almos 1MB =/. I researched and I found a class that transforms WAV to MP3: http://code.google.com/p/flash-kikko/
Thats worked, but the resulting file is relatively big. it encodes to 128kb mp3 and I cant change the bitrate. And 128 just to a voice sound is much much more than I need. The resulting file is a bit larger than I would like.
But the BIG BIG problem is that, it takes almost 15 seconds to encode a 10 second wav to MP3 in a galaxy S or a galaxy Tab device.
It takes TOO long to encode and the resulting file is really big compared to the voice recorder that is avaliable in android devices. It records the voice, it takes 0 seconds to encode to the final file. and the file is MUCH smaller than the one I am getting.
Is there a way to compress the microphone data I have, to get a smaller file, like the voice recorder in a efficient way android devices do?
'Is there a way for my Air app to use the android's voice recorder to record the sound for my application?
Thank you very much.

Hi Daniel,
I've gone through the Kikko route and found the encoding time unacceptable as well. The best I could do was reduce my sampling rate to 22k which is acceptable for voice (but not fantastic) and compress the bytearray before I stored it and decompress when I use the recording. The bytearray compression is almost trivial but hey I guess every little bit helps if you are storing a lot of files.
Another method you could use is uploading the wav files to a server and encoding and emailing them there. Upload time is the only issue with that.
I spent months researching this problem and unfortunately there isn't a great solution out there. =(
Please update this thread if you do end up finding something.
Edit: I forgot about Native Extensions that just got released with Adobe Air 3. That should open up a lot more solutions as you could call an mp3 encoder n Objective-C which should have far superior speed. I'll probably be looking into this solution in a few weeks but let me know if you figure something out.

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thanks in advance and sorry for my English

Hi,
Check out these links.
http://developer.java.sun.com/developer/technicalArticles/Media/JavaSoundAPI/
http://java.sun.com/j2se/1.3/docs/guide/sound/prog_guide/chapter5.fm.html
Also this is a very good site for finding similar issue as yours.
http://www.jsresources.org/examples/audio.html
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http://sun.com/developers/support

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import java.io.IOException;
import java.util.Vector;
import javax.media.*;
import javax.media.control.TrackControl;
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                    16,
                    Format.NOT_SPECIFIED,
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Ok, I narrowed my code down to this. There doesn't appear to be any infinite loops in the code now, but perhaps I'm wrong? The processor is realizing, and I am creating a player with the data source output from the processor, yet there still is nothing playing... which leads me to think that there is something wrong with my plug in implementation or my processor creation. Do you have any ideas or points in the right direction?
import java.io.IOException;
import java.util.Vector;
import javax.media.*;
import javax.media.control.TrackControl;
import javax.media.format.AudioFormat;
import javax.media.protocol.DataSource;
public class audioCapture {
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               16,
               Format.NOT_SPECIFIED,
               Format.byteArray);
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                    44100,
                    16,
                    2,
                    AudioFormat.LITTLE_ENDIAN,
                    AudioFormat.SIGNED,
                    16,
                    Format.NOT_SPECIFIED,
                    Format.byteArray)};
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PS - sorry for the late reply.

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Message was edited by: Limnos

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Hi guys I have not have a problem for awhile. A friend of mine recently move from DPS Velocity system to Final Cut Pro Studio 2 using a Intel Pro 3.2GHZ with all the bell and whistle, so I am giving him some training and tutorial. They have some footage in Velocity which I use MPEG StreamClip to convert to a DV file, I brought it in FCP (Three File one video and two audio makes one clip) it play in FCP Played ok when I export it to DVD studio Pro the audio is extremely low (barely audio able)I open the clip in QuickTime and it did not play. There is other clip in the project, some capture in FCP and others imports in FCP Studio, DVD Studio Pro and QuickTime plays these audio ok. The audio from Velocity are Wave files, I taught anyfile that plays in FCP would play in QuickTime. Does anyone knows how to solve this problem please to help I would like my friend to change both system to Apple and FCP thanks.

Wellcome to the forums!
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