Developer's guide
Embed the following code in to your app.
<object width="310" height="150">
<param name="movie" value="http://audiblab.com/recorder.swf">
<embed src="http://audiblab.com/recorder.swf?id=UNIQUE_FILE_ID" width="310" height="150">
</embed>
</object>
The sizing of the Flash application matters. Your users will be asked to allow access to their microphone to 'audiblab.com'. This is normal, but you may need to explain this to your users before they use the application.
The UNIQUE_FILE_ID needs to be a unique file ID between 30 and 60 alphanumeric characters in length. This should be generated server side - stringing two PHP uniqid() functions together would do nicely. :)
After your user has recorded their speech, the data will be converted to mp3 and be available almost instantly at the following URL: http://audiblab.com/a/UNIQUE_FILE_ID.mp3. The file will be hosted there for 14 days, but you're free to copy it to your local server for permanent hosting.
The current recording limit is 30 seconds, and is recorded at a microphone rate of 11Khz. This is adequate for many needs, but if your needs are greater, please contact me (email below) - a commercial pay-for recording/conversion service is being planned.