def values_bytes(self, data, dtype):
minim=9999
maxim=-9999
try:
aaa = numpy.fromstring(data, dtype='<i2')
except (ValueError):
return "ValueError"
i=0
for a in aaa:
square_a = float(a) * float(a)
self.average = math.sqrt(( (self.average * self.average * (self.average_devider - 1.0)) + square_a)/self.average_devider)
self.short_average = math.sqrt(( (self.short_average * self.short_average * (self.short_average_devider - 1.0)) + square_a)/self.short_average_devider)
if Ear.log and time.time() > self.debug_time + 60.0:
#if Hearing.Hearing.log:
#if time.time() > self.debug_time + 6.0:
print "Ear " + self.name + " time.time() " + time.ctime(time.time()) + ' self.debug_time ' + time.ctime(self.debug_time)
print "Ear " + self.name + " average " + str(self.average) + ' short_average ' + str(self.short_average)
self.debug_time = time.time()
if a > maxim:
maxim = a
if a < minim:
minim = a
if self.voice:
if self.short_average <= self.sensitivity * self.average:
#duration=self.n/self.rate
#self.stop_time = self.start_time + duration
self.sound.set_duration(self.n/self.rate)
self.sound.set_volume_level(math.sqrt(self.square_sum/self.n)/self.average)
self.sound.set_state(Sound.STOP)
self.queue.put(self.sound)
#print self.name + " voice stopped at " + time.ctime() + ' ' + str(self.sum/self.n/self.average) + ' ' + str(self.short_average) + ' ' + str(self.average)
self.voice = False
else:
self.sum += self.short_average
self.square_sum += square_a
self.n+=1.0
else:
if self.short_average > self.sensitivity * self.average:
self.start_time = time.time() - (float(len(aaa)-i)/self.rate) # sound's start time is when we got sound data minus slots that are not in the sound
self.sound = Sound(id=self.id, state=Sound.START, start_time=self.start_time)
self.queue.put(self.sound)
#print self.name + " voice started at " + time.ctime() + ' ' + str(self.start_time) + ' ' + str(self.short_average) + ' ' + str(self.average)
self.voice = True
self.sum=self.short_average
self.n=1.0
self.square_sum = square_a
i += 1
if self.voice:
#duration=self.n/self.rate
# self.stop_time = self.start_time + duration
self.sound.set_duration(self.n/self.rate)
self.sound.set_volume_level(math.sqrt(self.square_sum/self.n)/self.average)
self.sound.set_state(Sound.CONTINUE)
self.queue.put(self.sound)
class Ear(Thread):
log = True
def __init__(self, id, name, queue, card='default', channels=1, rate=44100, format=alsaaudio.PCM_FORMAT_S16_LE,
average=0.0, sensitivity=2.0):
Thread.__init__(self)
self.id=id
self.name=name
self.card=card
self.sensitivity=sensitivity
self.rate = float(rate)
#print 'str(alsaaudio.cards())' + str(alsaaudio.cards())
self.inp = alsaaudio.PCM(alsaaudio.PCM_CAPTURE, alsaaudio.PCM_NORMAL, card)
print name + ' card ' + self.inp.cardname()
#self.inp = alsaaudio.PCM(alsaaudio.PCM_CAPTURE, alsaaudio.PCM_NONBLOCK)
# Set attributes: Mono, 44100 Hz, 16 bit little endian samples
self.inp.setchannels(channels)
self.inp.setrate(rate)
self.inp.setformat(format)
self.inp.setperiodsize(32) #160
self.queue=queue
self.average=average;
self.average_devider = float(rate) * 10.0
self.short_average=average;
self.short_average_devider = 2000.0
self.voice = False
self.start_time=0.0
#self.stop_time=0.0
self.running=False
self.on=False
self.debug_time=time.time()
def stop(self):
self.running=False
def setOn(self, on):
self.on = on
def values_bytes(self, data, dtype):
minim=9999
maxim=-9999
try:
aaa = numpy.fromstring(data, dtype='<i2')
except (ValueError):
return "ValueError"
i=0
for a in aaa:
square_a = float(a) * float(a)
self.average = math.sqrt(( (self.average * self.average * (self.average_devider - 1.0)) + square_a)/self.average_devider)
self.short_average = math.sqrt(( (self.short_average * self.short_average * (self.short_average_devider - 1.0)) + square_a)/self.short_average_devider)
if Ear.log and time.time() > self.debug_time + 60.0:
#if Hearing.Hearing.log:
#if time.time() > self.debug_time + 6.0:
print "Ear " + self.name + " time.time() " + time.ctime(time.time()) + ' self.debug_time ' + time.ctime(self.debug_time)
print "Ear " + self.name + " average " + str(self.average) + ' short_average ' + str(self.short_average)
self.debug_time = time.time()
if a > maxim:
maxim = a
if a < minim:
minim = a
if self.voice:
if self.short_average <= self.sensitivity * self.average:
#duration=self.n/self.rate
#self.stop_time = self.start_time + duration
self.sound.set_duration(self.n/self.rate)
self.sound.set_volume_level(math.sqrt(self.square_sum/self.n)/self.average)
self.sound.set_state(Sound.STOP)
self.queue.put(self.sound)
#print self.name + " voice stopped at " + time.ctime() + ' ' + str(self.sum/self.n/self.average) + ' ' + str(self.short_average) + ' ' + str(self.average)
self.voice = False
else:
self.sum += self.short_average
self.square_sum += square_a
self.n+=1.0
else:
if self.short_average > self.sensitivity * self.average:
self.start_time = time.time() - (float(len(aaa)-i)/self.rate) # sound's start time is when we got sound data minus slots that are not in the sound
self.sound = Sound(id=self.id, state=Sound.START, start_time=self.start_time)
self.queue.put(self.sound)
#print self.name + " voice started at " + time.ctime() + ' ' + str(self.start_time) + ' ' + str(self.short_average) + ' ' + str(self.average)
self.voice = True
self.sum=self.short_average
self.n=1.0
self.square_sum = square_a
i += 1
if self.voice:
#duration=self.n/self.rate
# self.stop_time = self.start_time + duration
self.sound.set_duration(self.n/self.rate)
self.sound.set_volume_level(math.sqrt(self.square_sum/self.n)/self.average)
self.sound.set_state(Sound.CONTINUE)
self.queue.put(self.sound)
def run(self):
if not self.running:
self.running = True
self.on=True
print "Starting " + self.name
len=0
while self.running:
# blocking read data from device
#print "reading " + self.name
l, data = self.inp.read()
#print "read " + self.name + " " + str(l)
if self.on and self.running and l > 0:
len += l
self.values_bytes(data, '<i2')
print "Exiting " + self.name
