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ssotc_2011:grp4:start [2011/08/19 11:09]
grp4 [Conclusion] 		ssotc_2011:grp4:start [2011/08/22 02:23] (current)
grp4
Line 2: Line 2:
   - Esa-Petri Tirkkonen   - Esa-Petri Tirkkonen
   - Hilmi Abdullah   - Hilmi Abdullah
 +
 +  
 +===== Final Report=====
 +
 +{{:ssotc_2011:grp4:mehearreport.pdf|MeHear Report}}
 +
  
 ===== Idea ===== ===== Idea =====
Line 7: Line 13:
 Using phone as hearing aid for old people (and not so old). Using phone's microphone and ear plugs. Basic idea is to amplify sound to make it audible for people with hearing proplems. Program will have volume control and some basic compressor and equaliser in it.   Using phone as hearing aid for old people (and not so old). Using phone's microphone and ear plugs. Basic idea is to amplify sound to make it audible for people with hearing proplems. Program will have volume control and some basic compressor and equaliser in it.  
  
-===== Screenshots ===== 
  
-None yet+===== Result ===== 
 + 
 +We managed to do application which uses Gstreamer to stream straight from mic to ear plugs. It has also a compressor to make audio audible. Problem is just that volume or compressor is not controllable. Whole code would be needed to be rearranged to get buttons and knobs to do some thing. Propaply using gstreamers commandline version but that's other story 
 +===== Screenshots ===== 
 +{{:ssotc_2011:grp4:screenshot02.png|}}
 ===== Code ===== ===== Code =====
  
Line 79: Line 88:
         """         """
         @attention: this is important it initializes softfare playtrought (audioconvert is not nesesity)         @attention: this is important it initializes softfare playtrought (audioconvert is not nesesity)
-        @summary: takes stream from mic to autosink+        @summary: takes stream from mic to autosink notice volume or compression ratio is not changable after program strats as they aare in constructor of main window(MeHear)
         """         """
         self.pipeline = gst.parse_launch("""alsasrc device=hw:%d  ! volume %d !audiodynamic ratio=%d ! autoaudiosink location=%s""" % (self.mic, Volume, Cratio, sink))         self.pipeline = gst.parse_launch("""alsasrc device=hw:%d  ! volume %d !audiodynamic ratio=%d ! autoaudiosink location=%s""" % (self.mic, Volume, Cratio, sink))
Line 115: Line 124:
                  
         self.audiosink = gst.element_factory_make("autoaudiosink", "audio-output")         self.audiosink = gst.element_factory_make("autoaudiosink", "audio-output")
 + """
 +        @attention: intance of record class is created here and gstreamer started.
 +        """
         self.recorder=Record(self.audiosink)         self.recorder=Record(self.audiosink)
         """         """
Line 157: Line 169:
 class MeHear(hildon.Program): class MeHear(hildon.Program):
     def __init__(self):     def __init__(self):
 +        """
 +        @summary: creates an intance of pleyer class and that why starts also gsteamer
 +        """  
         self.pl= player()         self.pl= player()
-#    def record_button_clicked(self,button, label): + 
-#        buttontext = button.get_label() +
-#        text =  buttontext +
-#        if text == "Record" : +
-#            label.set_text(text+"ing...") +
-#            button.set_label("Stop") +
-#            print "Record button pressed" +
-#             +
-#        if text == "Stop" : +
-#            button.set_label("Record") +
-#            print "Stop button pressed"+
  
     def addvol_button_clicked(self, button, label, sm):     def addvol_button_clicked(self, button, label, sm):
 + #this changes the value of adjustment and thats why changes also progress bars value as it is linked to adjesment
         a=self.adjus.get_value()         a=self.adjus.get_value()
         self.adjus.set_value(a+10)         self.adjus.set_value(a+10)
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         print "volume %d"%(a+10)         print "volume %d"%(a+10)
                      
- 
-         
     def decvol_button_clicked(self, button, label, sm):     def decvol_button_clicked(self, button, label, sm):
 + #this changes the value of adjustment and thats why changes also progress bars value as it is linked to adjesment
         a=self.adjus.get_value()         a=self.adjus.get_value()
         self.adjus.set_value(a-10)         self.adjus.set_value(a-10)
Line 230: Line 236:
         buttonGTK = gtk.ToggleButton("AMPlify")         buttonGTK = gtk.ToggleButton("AMPlify")
         buttonGTK.connect("clicked", self.amplify_button_clicked, labelSubHeader)         buttonGTK.connect("clicked", self.amplify_button_clicked, labelSubHeader)
-      
-      
- 
-         
-        #this changes the value of progres bar 
-        #adjus.set_value(30)  
- 
-         
-         
-         
-        #a= gtk.CheckButton("check button 1") 
-        #hbox.pack_start(a, True, True, 0) 
-         
-        #b= gtk.ToggleButton("check button 1") 
-        #hbox.pack_start(b, True, True, 0) 
-         
-        #c = gtk.RadioButton(None, "radio button1") 
-        #hbox.pack_start(c, True, True, 0) 
-         
-        #adjus = gtk.Adjustment(value=60, lower=0, upper=100, step_incr=1, page_incr=0, page_size=0) 
-        #d = gtk.SpinButton(adjustment= adjus, climb_rate=0.1, digits=5) 
-        #hbox.pack_start(d, True, True, 0) 
-        #hscrollbar = gtk.HSscrollbar(adjustment) 
                  
         self.ratiotext= gtk.Label("Ratio:")         self.ratiotext= gtk.Label("Ratio:")
Line 268: Line 251:
                  
         self.volumetext= gtk.Label("Volume:")         self.volumetext= gtk.Label("Volume:")
-        # Create a centering alignment object 
-        #align = gtk.Alignment(0.5 ,0.5, 0, 0) 
-        #vbox.pack_start(align, False, False, 5) 
-        #align.show() 
-        #align.add(self.pbar) 
-        #self.pbar.show() 
         hbox3.pack_start(self.ratiotext, True, True, 0)         hbox3.pack_start(self.ratiotext, True, True, 0)
         hbox3.pack_start(combo, True, True, 0)         hbox3.pack_start(combo, True, True, 0)
Line 298: Line 275:
          
          
-if __name__ == "__main__":   +if __name__ == "__main__":     
-    +
     app = MeHear()      app = MeHear() 
     app.main()     app.main()
 +#EOF
 </file> </file>
  
- +Cleaned code whit some examples 
-Upload and attach your project **source code** package here. +{{:ssotc_2011:grp4:mehear.zip|}}
-  * Clean up compiled binary files before making package +
-  * Use .zip format+
      
 +===== Presentation=====
 +
 +{{:ssotc_2011:grp4:amplifier.pdf|MeHear}}
 +
 ===== Conclusion ===== ===== Conclusion =====
  
-Developing in Maemo environment was challenging, we faced some problems during the night but at the end it works. Moreover CodeCamp is a nice environment for learning.+Hilmi:Developing in Maemo environment was challenging, we faced some problems during the night but at the end it works. Moreover CodeCamp is a nice environment for learning.
  
 +Esa-Petri: Coding to maemo was nightmare as libraries aren't well ported like Gstreamer Pygtk and so on. Also software restrictions make coding awful. But learning to use gstreamer and Pygtk was good experience. I just would not want to have maemo ever. 
 +Trip to Riuttasaari was a really good experience and should be made as tradition. Overall good experience