Python audioop.rms方法代码示例

# 需要导入模块: import audioop [as 别名]
# 或者: from audioop import rms [as 别名]
def btn_detect():
	global btn_status
	with MicrophoneStream(RATE, CHUNK) as stream:
		audio_generator = stream.generator()

		for content in audio_generator:
			GPIO.output(31, GPIO.HIGH)
			rc = ktkws.detect(content)
			rms = audioop.rms(content,2)
			#print('audio rms = %d' % (rms))
			GPIO.output(31, GPIO.LOW)
			if (btn_status == True):
				rc = 1
				btn_status = False			
			if (rc == 1):
				GPIO.output(31, GPIO.HIGH)
				play_file("../data/sample_sound.wav")
				return 200 

# 需要导入模块: import audioop [as 别名]
# 或者: from audioop import rms [as 别名]
def detect():
	global button
	with MicrophoneStream(RATE, CHUNK) as stream:
		audio_generator = stream.generator()

		for content in audio_generator:
			#import binascii
			#print ("INBYTE: %s" % (binascii.hexlify(bytearray(content))))
			GPIO.output(31, GPIO.HIGH)
			rc = ktkws.detect(content)
			rms = audioop.rms(content,2)
			#print('audio rms = %d' % (rms))
			GPIO.output(31, GPIO.LOW)
			if (button == True):
				rc = 1
				button = False
			
			if (rc == 1):
				GPIO.output(31, GPIO.HIGH)
				play_file("../data/sample_sound.wav")
				return 200 

# 需要导入模块: import audioop [as 别名]
# 或者: from audioop import rms [as 别名]
def detect():
	global button
	with MicrophoneStream(RATE, CHUNK) as stream:
		audio_generator = stream.generator()

		for content in audio_generator:
			#import binascii
			#print ("INBYTE: %s" % (binascii.hexlify(bytearray(content))))
			GPIO.output(31, GPIO.HIGH)
			rc = ktkws.detect(content)
			rms = audioop.rms(content,2)
			#print('audio rms = %d' % (rms))
			GPIO.output(31, GPIO.LOW)
			if (button == True):
				rc = 1
				button = False
			
			if (rc == 1):
				GPIO.output(31, GPIO.HIGH)
				gt2vt.play_file("../data/sample_sound.wav")
				return 200 

# 需要导入模块: import audioop [as 别名]
# 或者: from audioop import rms [as 别名]
def btn_detect():
	global btn_status
	with MS.MicrophoneStream(RATE, CHUNK) as stream:
		audio_generator = stream.generator()

		for content in audio_generator:
			GPIO.output(31, GPIO.HIGH)
			rc = ktkws.detect(content)
			rms = audioop.rms(content,2)
			#print('audio rms = %d' % (rms))
			GPIO.output(31, GPIO.LOW)
			if (btn_status == True):
				rc = 1
				btn_status = False			
			if (rc == 1):
				GPIO.output(31, GPIO.HIGH)
				MS.play_file("../data/sample_sound.wav")
				return 200 

# 需要导入模块: import audioop [as 别名]
# 或者: from audioop import rms [as 别名]
def test_issue7673(self):
        state = None
        for data, size in INVALID_DATA:
            size2 = size
            self.assertRaises(audioop.error, audioop.getsample, data, size, 0)
            self.assertRaises(audioop.error, audioop.max, data, size)
            self.assertRaises(audioop.error, audioop.minmax, data, size)
            self.assertRaises(audioop.error, audioop.avg, data, size)
            self.assertRaises(audioop.error, audioop.rms, data, size)
            self.assertRaises(audioop.error, audioop.avgpp, data, size)
            self.assertRaises(audioop.error, audioop.maxpp, data, size)
            self.assertRaises(audioop.error, audioop.cross, data, size)
            self.assertRaises(audioop.error, audioop.mul, data, size, 1.0)
            self.assertRaises(audioop.error, audioop.tomono, data, size, 0.5, 0.5)
            self.assertRaises(audioop.error, audioop.tostereo, data, size, 0.5, 0.5)
            self.assertRaises(audioop.error, audioop.add, data, data, size)
            self.assertRaises(audioop.error, audioop.bias, data, size, 0)
            self.assertRaises(audioop.error, audioop.reverse, data, size)
            self.assertRaises(audioop.error, audioop.lin2lin, data, size, size2)
            self.assertRaises(audioop.error, audioop.ratecv, data, size, 1, 1, 1, state)
            self.assertRaises(audioop.error, audioop.lin2ulaw, data, size)
            self.assertRaises(audioop.error, audioop.lin2alaw, data, size)
            self.assertRaises(audioop.error, audioop.lin2adpcm, data, size, state) 

# 需要导入模块: import audioop [as 别名]
# 或者: from audioop import rms [as 别名]
def test_string(self):
        data = 'abcd'
        size = 2
        self.assertRaises(TypeError, audioop.getsample, data, size, 0)
        self.assertRaises(TypeError, audioop.max, data, size)
        self.assertRaises(TypeError, audioop.minmax, data, size)
        self.assertRaises(TypeError, audioop.avg, data, size)
        self.assertRaises(TypeError, audioop.rms, data, size)
        self.assertRaises(TypeError, audioop.avgpp, data, size)
        self.assertRaises(TypeError, audioop.maxpp, data, size)
        self.assertRaises(TypeError, audioop.cross, data, size)
        self.assertRaises(TypeError, audioop.mul, data, size, 1.0)
        self.assertRaises(TypeError, audioop.tomono, data, size, 0.5, 0.5)
        self.assertRaises(TypeError, audioop.tostereo, data, size, 0.5, 0.5)
        self.assertRaises(TypeError, audioop.add, data, data, size)
        self.assertRaises(TypeError, audioop.bias, data, size, 0)
        self.assertRaises(TypeError, audioop.reverse, data, size)
        self.assertRaises(TypeError, audioop.lin2lin, data, size, size)
        self.assertRaises(TypeError, audioop.ratecv, data, size, 1, 1, 1, None)
        self.assertRaises(TypeError, audioop.lin2ulaw, data, size)
        self.assertRaises(TypeError, audioop.lin2alaw, data, size)
        self.assertRaises(TypeError, audioop.lin2adpcm, data, size, None) 

# 需要导入模块: import audioop [as 别名]
# 或者: from audioop import rms [as 别名]
def __db_level(self, rms_mode: bool = False) -> Tuple[float, float]:
        """
        Returns the average audio volume level measured in dB (range -60 db to 0 db)
        If the sample is stereo, you get back a tuple: (left_level, right_level)
        If the sample is mono, you still get a tuple but both values will be the same.
        This method is probably only useful if processed on very short sample fragments in sequence,
        so the db levels could be used to show a level meter for the duration of the sample.
        """
        maxvalue = 2**(8*self.__samplewidth-1)
        if self.nchannels == 1:
            if rms_mode:
                peak_left = peak_right = (audioop.rms(self.__frames, self.__samplewidth)+1)/maxvalue
            else:
                peak_left = peak_right = (audioop.max(self.__frames, self.__samplewidth)+1)/maxvalue
        else:
            left_frames = audioop.tomono(self.__frames, self.__samplewidth, 1, 0)
            right_frames = audioop.tomono(self.__frames, self.__samplewidth, 0, 1)
            if rms_mode:
                peak_left = (audioop.rms(left_frames, self.__samplewidth)+1)/maxvalue
                peak_right = (audioop.rms(right_frames, self.__samplewidth)+1)/maxvalue
            else:
                peak_left = (audioop.max(left_frames, self.__samplewidth)+1)/maxvalue
                peak_right = (audioop.max(right_frames, self.__samplewidth)+1)/maxvalue
        # cut off at the bottom at -60 instead of all the way down to -infinity
        return max(20.0*math.log(peak_left, 10), -60.0), max(20.0*math.log(peak_right, 10), -60.0) 

# 需要导入模块: import audioop [as 别名]
# 或者: from audioop import rms [as 别名]
def read(self, frame_size):
        self.frame_count += 1

        frame = self.buff.read(frame_size)

        if self.volume != 1:
            frame = self._frame_vol(frame, self.volume, maxv=2)

        if self.draw and not self.frame_count % self.frame_skip:
            # these should be processed for every frame, but "overhead"
            rms = audioop.rms(frame, 2)
            self.rmss.append(rms)

            max_rms = sorted(self.rmss)[-1]
            meter_text = 'avg rms: {:.2f}, max rms: {:.2f} '.format(avg(self.rmss), max_rms)
            self._pprint_meter(rms / max(1, max_rms), text=meter_text, shift=True)

        return frame 

# 需要导入模块: import audioop [as 别名]
# 或者: from audioop import rms [as 别名]
def get_microphone_level():
    """
    source: http://stackoverflow.com/questions/26478315/getting-volume-levels-from-pyaudio-for-use-in-arduino
    audioop.max alternative to audioop.rms
    """
    chunk = 1024
    FORMAT = pyaudio.paInt16
    CHANNELS = 1
    RATE = 44100
    p = pyaudio.PyAudio()

    s = p.open(format=FORMAT,
               channels=CHANNELS,
               rate=RATE,
               input=True,
               frames_per_buffer=chunk)
    global levels
    while True:
        data = s.read(chunk)
        mx = audioop.rms(data, 2)
        if len(levels) >= 100:
            levels = []
        levels.append(mx) 

# 需要导入模块: import audioop [as 别名]
# 或者: from audioop import rms [as 别名]
def mic_to_ws():  # uses stream
            try:
                print >> sys.stderr, "\nLISTENING TO MICROPHONE"
                last_state = None
                while True:
                    data = stream.read(self.chunk)
                    if self.audio_gate > 0:
                        rms = audioop.rms(data, 2)
                        if rms < self.audio_gate:
                            data = '\00' * len(data)
                    #if sample_chan == 2:
                    #    data = audioop.tomono(data, 2, 1, 1)
                    if sample_rate != self.byterate:
                        (data, last_state) = audioop.ratecv(data, 2, 1, sample_rate, self.byterate, last_state)

                    self.send_data(data)
            except IOError, e:
                # usually a broken pipe
                print e 

# 需要导入模块: import audioop [as 别名]
# 或者: from audioop import rms [as 别名]
def adjust_for_ambient_noise(self, source, duration = 1):
        """
        Adjusts the energy threshold dynamically using audio from ``source`` (an ``AudioSource`` instance) to account for ambient noise.
        Intended to calibrate the energy threshold with the ambient energy level. Should be used on periods of audio without speech - will stop early if any speech is detected.
        The ``duration`` parameter is the maximum number of seconds that it will dynamically adjust the threshold for before returning. This value should be at least 0.5 in order to get a representative sample of the ambient noise.
        """
        assert isinstance(source, AudioSource), "Source must be an audio source"
        assert source.stream is not None, "Audio source must be entered before adjusting, see documentation for `AudioSource`; are you using `source` outside of a `with` statement?"
        assert self.pause_threshold >= self.non_speaking_duration >= 0

        seconds_per_buffer = (source.CHUNK + 0.0) / source.SAMPLE_RATE
        elapsed_time = 0

        # adjust energy threshold until a phrase starts
        while True:
            elapsed_time += seconds_per_buffer
            if elapsed_time > duration: break
            buffer = source.stream.read(source.CHUNK)
            energy = audioop.rms(buffer, source.SAMPLE_WIDTH) # energy of the audio signal

            # dynamically adjust the energy threshold using assymmetric weighted average
            damping = self.dynamic_energy_adjustment_damping ** seconds_per_buffer # account for different chunk sizes and rates
            target_energy = energy * self.dynamic_energy_ratio
            self.energy_threshold = self.energy_threshold * damping + target_energy * (1 - damping) 

# 需要导入模块: import audioop [as 别名]
# 或者: from audioop import rms [as 别名]
def print_rms(rms):
    out = ''
    for _ in range(int(round(rms/30))):
        out = out + '*'
    
    #print (out) 

# 需要导入模块: import audioop [as 别名]
# 或者: from audioop import rms [as 别名]
def generate_request():

    with MicrophoneStream(RATE, CHUNK) as stream:
        audio_generator = stream.generator()
    
        for content in audio_generator:
            message = gigagenieRPC_pb2.reqVoice()
            message.audioContent = content
            yield message
            
            rms = audioop.rms(content,2)
            print_rms(rms) 

# 需要导入模块: import audioop [as 别名]
# 或者: from audioop import rms [as 别名]
def print_rms(rms):
	out = ''
	for _ in range(int(round(rms/30))):
		out = out + '*'
	
	#print (out) 

# 需要导入模块: import audioop [as 别名]
# 或者: from audioop import rms [as 别名]
def detect():
	with MicrophoneStream(RATE, CHUNK) as stream:
		audio_generator = stream.generator()

		for content in audio_generator:

			rc = ktkws.detect(content)
			rms = audioop.rms(content,2)
			#print('audio rms = %d' % (rms))

			if (rc == 1):
				play_file("../data/sample_sound.wav")
				return 200