Have you tested the app to see how much noise it can tolerate? And have you listened to how much noise there is in actual use on the shortwave radio bands?
On Jan 13, 12:22 am, Ludy Lu <ludy...@gmail.com> wrote: > android market has a application named morse code reader can convert morse > sound to text... > > 2012/1/13 RLScott <fixthatpi...@yahoo.com> > > > > > 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 <ludy...@gmail.com> wrote: > > > now question is how to remove noise and how to compute a dit length from > > > pcm buffer??? > > > > 2012/1/13 Indicator Veritatis <mej1...@yahoo.com> > > > > > 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 <treking...@gmail.com> wrote: > > > > > On Thu, Jan 12, 2012 at 2:13 AM, ludy <ludy...@gmail.com> 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 > > android-developers@googlegroups.com > > > > To unsubscribe from this group, send email to > > > > android-developers+unsubscr...@googlegroups.com > > > > 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 android-developers@googlegroups.com > > To unsubscribe from this group, send email to > > android-developers+unsubscr...@googlegroups.com > > 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 android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
