def __init__(self):

self.counter = 0

self.filename = ""

self.recflag = False

self.filename = ""

self.RecFrames = []

self.stream = None

self.audiocontext = None

self.processThread = None

# CREATE MAIN WINDOW

self.window = MasterWindow(self)

self.window.show_all()

def OnRec(self):

self.recflag = True

self.counter += 1

self.audiocontext = pyaudio.PyAudio()

def callback(in_data, frame_count, time_info, status):

if self.recflag:

callback_falg = pyaudio.paContinue

self.RecFrames.append(in_data)

x = (struct.unpack( "h", in_data[:2]))

if not self.window.RecStopButton.inAnimation:

self.window.RecStopButton.radius = 60 + int(abs(x[0] / 170))

self.window.queue_draw()

else:

self.window.RecStopButton.radius = 60

callback_falg = pyaudio.paComplete

self.window.queue_draw()

return None, callback_falg

self.stream = self.audiocontext.open(format=pyaudio.paInt16,

channels=1,

rate=44100,

input=True,

frames_per_buffer=1024,

stream_callback=callback)

self.stream.start_stream()

print("recording...")

def OnStop(self):

self.recflag = False

self.stream.stop_stream()

self.stream.close()

self.stream = None

self.audiocontext.terminate()

self.filename = "take" + str(self.counter) + ".wav"

sf = wave.open(self.filename, 'wb')

sf.setnchannels(1)

sf.setsampwidth(self.audiocontext.get_sample_size(pyaudio.paInt16))

sf.setframerate(44100)

sf.writeframes(b''.join(self.RecFrames))

sf.close()

self.audiocontext = None

self.RecFrames = []

self.window.PlayFlag = False

self.window.MelodyFlag = False

self.window.SlowFlag = False

self.window.FastFlag = False

self.window.RobotFlag = False

self.window.cr.save()

self.window.WaitWidjet.active()

def OnQuit(self, plus):

for filename in glob.glob("take*"):

os.remove(filename)

print("Closing")

Gtk.main_quit()

def OnPlay(self, filename):

wf = wave.open(filename, 'rb')

# instantiate PyAudio (1)

self.audiocontext = pyaudio.PyAudio()

p = self.audiocontext

# define callback (2)

def callback(in_data, frame_count, time_info, status):

if in_data != "":

data = wf.readframes(frame_count)

callbackflag = pyaudio.paContinue

else:

callbackflag = pyaudio.paComplete

self.StopPlay(wf)

return (data, callbackflag)

# open stream using callback (3)

self.stream = p.open(format=p.get_format_from_width(wf.getsampwidth()),

channels=wf.getnchannels(),

rate=wf.getframerate(),

output=True,

stream_callback=callback)

self.stream.start_stream()

def StopPlay(self, wf):

# stop stream (6)

self.stream.stop_stream()

self.stream.close()

self.stream = None

self.audiocontext.terminate()

self.audiocontext = None

wf.close()

def OnProcessing(self):

def Process(filename, counter):

Robotize(filename, "take" + str(counter) + "-robot.wav")

ExtractMelody(filename, "take" + str(counter) + "-melody.wav")

Stretch(filename, "take" + str(counter) + "-slower.wav", 0.5)

Stretch(filename, "take" + str(counter) + "-faster.wav", 2.0)

self.window.waitingFlag = False

self.processThread = threading.Thread(target=Process, args=(self.filename, self.counter))