The job of parsing Morse code can be very simple if the sound is clean and regular. If it is a little bit irregular in timing, then the job gets harder. If there is a little noise, then it gets harder still. And if there is a lot of noise, then the programming becomes nearly impossible. The last I heard, a program could not beat a trained human listener in the toughest of environments. So how clean and regular in timing is this Morse code that you want to parse.
On Jan 12, 10:48 pm, Ludy Lu <[email protected]> wrote: > now question is how to remove noise and how to compute a dit length from > pcm buffer??? > > 2012/1/13 Indicator Veritatis <[email protected]> > > > > > It would if there were an Android API for it. I am not aware of one, > > and I doubt one exists. This is rather a fairly simple (audio) signal > > processing task. > > > What does have to do with Android is the question: how can he use the > > phone's microphone to listen to the sound, what APIs should he use to > > generate an audio stream out of it (for that signal processing)? The > > answer to these questions is not obvious either. > > > On Jan 12, 10:47 am, TreKing <[email protected]> wrote: > > > On Thu, Jan 12, 2012 at 2:13 AM, ludy <[email protected]> wrote: > > > > i use audiorecord to record morse sound ,and then need to convert morse > > > > sound to text,how to do that??? > > > > Write the code to do that or use a library. This has nothing to do with > > > Android specifically. > > > --------------------------------------------------------------------------- > > ---------------------- > > > TreKing <http://sites.google.com/site/rezmobileapps/treking> - Chicago > > > transit tracking app for Android-powered devices > > > -- > > You received this message because you are subscribed to the Google > > Groups "Android Developers" group. > > To post to this group, send email to [email protected] > > To unsubscribe from this group, send email to > > [email protected] > > For more options, visit this group at > >http://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
