def __init__(self, wave='sine', freq=440.0, buffersize=4096):
inits = pygame.mixer.get_init()
if inits == None:
print "Error. pygame not initialized"
return
#detect bit
if inits[1] == -16:
self.m_type = numpy.int16
elif inits[1] == 16:
self.m_type = numpy.uint16
elif inits[1] == -8:
self.m_type = numpy.int8
elif inits[1] == 8:
self.m_type = numpy.uint8
else:
print "Error. Unknown bit size"
self.m_length = buffersize
self.m_table = WaveTable(wave, inits[0], inits[1])
self.m_frequency = freq
def __init__(self, wave='sine', freq=440.0, buffersize=4096): inits = pygame.mixer.get_init() if inits == None: print "Error. pygame not initialized" return #detect bit if inits[1] == -16: self.m_type = numpy.int16 elif inits[1] == 16: self.m_type = numpy.uint16 elif inits[1] == -8: self.m_type = numpy.int8 elif inits[1] == 8: self.m_type = numpy.uint8 else: print "Error. Unknown bit size" self.m_length = buffersize self.m_table = WaveTable(wave, inits[0], inits[1]) self.m_frequency = freq
class Oscillator:
"""
Simple oscillator for pygame mixer.
This is ment to be used by repeatedly calling the getSamples() member function,
which will return a pygame Sound object with the length of the buffer size.
Please note that this requires the buffer size to be choosen with care.
TODO: Fix stereo compability
"""
m_table = None
m_type = None
m_buffer = None
m_frequency = 0
m_pos = 0
m_length = 0
def __init__(self, wave='sine', freq=440.0, buffersize=4096):
inits = pygame.mixer.get_init()
if inits == None:
print "Error. pygame not initialized"
return
#detect bit
if inits[1] == -16:
self.m_type = numpy.int16
elif inits[1] == 16:
self.m_type = numpy.uint16
elif inits[1] == -8:
self.m_type = numpy.int8
elif inits[1] == 8:
self.m_type = numpy.uint8
else:
print "Error. Unknown bit size"
self.m_length = buffersize
self.m_table = WaveTable(wave, inits[0], inits[1])
self.m_frequency = freq
def samples(self):
wanted = self.m_length
self.m_buffer = numpy.zeros(self.m_length, dtype=self.m_type)
if self.m_frequency < 20 or self.m_frequency > 20000:
return pygame.sndarray.make_sound(
self.m_buffer) # returning silence
idx = 0
while wanted > 0:
self.m_buffer[idx] = self.m_table.at(self.m_pos)
self.m_pos += self.m_frequency
if (self.m_pos >= self.rate()):
self.m_pos -= self.rate()
wanted -= 1
idx += 1
return pygame.sndarray.make_sound(self.m_buffer)
def set_frequency(self, frq):
self.m_frequency = frq
def frequency(self):
return self.m_frequency
def set_size(self, length):
self.m_length = length
def size(self):
return self.m_length
def rate(self):
return self.m_table.sampleRate()
def set_position(self, pos):
""" No need for error checking, since it's taken care of by samples() """
self.m_pos = pos
def position(self):
return self.m_pos
class Oscillator: """ Simple oscillator for pygame mixer. This is ment to be used by repeatedly calling the getSamples() member function, which will return a pygame Sound object with the length of the buffer size. Please note that this requires the buffer size to be choosen with care. TODO: Fix stereo compability """ m_table = None m_type = None m_buffer = None m_frequency = 0 m_pos = 0 m_length = 0 def __init__(self, wave='sine', freq=440.0, buffersize=4096): inits = pygame.mixer.get_init() if inits == None: print "Error. pygame not initialized" return #detect bit if inits[1] == -16: self.m_type = numpy.int16 elif inits[1] == 16: self.m_type = numpy.uint16 elif inits[1] == -8: self.m_type = numpy.int8 elif inits[1] == 8: self.m_type = numpy.uint8 else: print "Error. Unknown bit size" self.m_length = buffersize self.m_table = WaveTable(wave, inits[0], inits[1]) self.m_frequency = freq def samples(self): wanted = self.m_length self.m_buffer = numpy.zeros(self.m_length, dtype=self.m_type) if self.m_frequency < 20 or self.m_frequency > 20000: return pygame.sndarray.make_sound(self.m_buffer) # returning silence idx = 0 while wanted > 0: self.m_buffer[idx] = self.m_table.at(self.m_pos) self.m_pos += self.m_frequency if (self.m_pos >= self.rate()): self.m_pos -= self.rate() wanted -= 1 idx += 1 return pygame.sndarray.make_sound(self.m_buffer) def set_frequency(self, frq): self.m_frequency = frq def frequency(self): return self.m_frequency def set_size(self, length): self.m_length = length def size(self): return self.m_length def rate(self): return self.m_table.sampleRate() def set_position(self, pos): """ No need for error checking, since it's taken care of by samples() """ self.m_pos = pos def position(self): return self.m_pos
