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Microphon visualization
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| #!/usr/bin/env python2 | |
| import alsaaudio, time, audioop | |
| try: | |
| from Tkinter import * # python2 | |
| except ImportError: | |
| from tkinter import * # python3 | |
| try: | |
| xrange # py 2 | |
| except NameError: | |
| xrange = range # py 3 | |
| inp = alsaaudio.PCM(type=alsaaudio.PCM_CAPTURE,mode=alsaaudio.PCM_NORMAL) | |
| # inp = alsaaudio.PCM(type=alsaaudio.PCM_CAPTURE,mode=alsaaudio.PCM_NONBLOCK) | |
| bits = 2 | |
| max_bit = 2**(8*bits) | |
| max_bit_2 = max_bit/2 | |
| # print "bits: %s max_bit: %s max_bit_2: %s" % (bits, max_bit, max_bit_2) | |
| inp.setchannels(1) | |
| inp.setrate(32000) | |
| # inp.setformat(alsaaudio.PCM_FORMAT_S32_LE) | |
| inp.setformat(alsaaudio.PCM_FORMAT_S16_LE) | |
| # inp.setformat(alsaaudio.PCM_FORMAT_S8) | |
| class Gui(): | |
| def __init__(self, master): | |
| self.master = master | |
| self.canvas = Canvas(master) | |
| # window resize | |
| # self.master.bind("<Configure>", self) | |
| # left mouse click | |
| self.canvas.bind("<Button-1>", self.toggle_drawing) | |
| self.canvas.configure({"bg": "white"}) | |
| self.canvas.pack({"fill": "both", "expand": True}) | |
| self.width = 1360 | |
| self.heigth = 768/2 | |
| self.master.title("RealTime Segmentation") | |
| self.master.geometry("%ix%i+%i+%i" % (self.width, self.heigth, 0, (768/2)-(self.heigth/2) )) | |
| self.drawing = False | |
| self.first_pause = True | |
| inp.setperiodsize(self.width+1) | |
| self.master.after_idle(self.toggle_drawing) | |
| def toggle_drawing(self, *args): | |
| if not self.first_pause == True: | |
| inp.pause(self.drawing) | |
| self.drawing = not self.drawing | |
| self.first_pause = False | |
| self.master.after_idle(self.draw) | |
| def draw(self): | |
| h = self.heigth | |
| if not self.drawing: | |
| return | |
| self.canvas.delete("all || !line") | |
| l, data = inp.read() | |
| # print audioop.rms(data, bits) | |
| num = [0,0,0] | |
| num[0] = audioop.getsample(data, bits, 0) | |
| num[0] = ((h*num[0])/max_bit_2)+h/2 | |
| for i in xrange(0,l-1): | |
| num[1] = audioop.getsample(data, bits, i+1) | |
| # fitting points into window | |
| num[1] = ((h*num[1])/max_bit_2)+h/2 | |
| num[2] = ((h*num[2])/max_bit_2)+h/2 | |
| self.canvas.create_line(i, num[0], | |
| i+1, num[1], | |
| ) | |
| # print "x: %s y: %s" % (i, num[0]) | |
| # print "x: %s y: %s\n" % (i, num[1]) | |
| num[0] = num[1] | |
| num[1] = num[2] | |
| self.master.update_idletasks() | |
| self.canvas.update_idletasks() | |
| self.master.after(0, self.draw) | |
| root = Tk() | |
| app = Gui(root) | |
| root.mainloop() |
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| #!/usr/bin/env python2 | |
| import alsaaudio, time, audioop | |
| try: | |
| from Tkinter import * # python2 | |
| except ImportError: | |
| from tkinter import * # python3 | |
| try: | |
| xrange # py 2 | |
| except NameError: | |
| xrange = range # py 3 | |
| inp = alsaaudio.PCM(type=alsaaudio.PCM_CAPTURE,mode=alsaaudio.PCM_NORMAL) | |
| # inp = alsaaudio.PCM(type=alsaaudio.PCM_CAPTURE,mode=alsaaudio.PCM_NONBLOCK) | |
| buffer = "" | |
| factor = [] | |
| factor_len = 24 | |
| bits = 2 | |
| max_bit = 2**(8*bits) | |
| max_bit_2 = max_bit/2 | |
| HZ = 44100 | |
| frame_time = 128 # in ms | |
| frame_len = ((HZ/1000)*frame_time)*bits | |
| period_size = 1024 | |
| inp.setchannels(1) | |
| inp.setrate(HZ) | |
| inp.setperiodsize(period_size) | |
| # 8 000 Hz | |
| # 11 025 Hz | |
| # 16 000 Hz | |
| # 22 050 Hz | |
| # 32 000 Hz | |
| # 44 100 Hz | |
| # 48 000 Hz | |
| # 96 000 Hz | |
| if bits == 2: | |
| inp.setformat(alsaaudio.PCM_FORMAT_S16_LE) | |
| elif bits == 4: | |
| inp.setformat(alsaaudio.PCM_FORMAT_S32_LE) | |
| else: | |
| print "Error, only 2 or 4 bits" | |
| import sys | |
| sys.exit(1) | |
| class Gui(): | |
| def __init__(self, master): | |
| self.master = master | |
| self.canvas = Canvas(master) | |
| # window resize | |
| # self.master.bind("<Configure>", self) | |
| # left mouse click | |
| self.canvas.bind("<Button-1>", self.toggle_drawing) | |
| self.canvas.configure({"bg": "white"}) | |
| self.canvas.pack({"fill": "both", "expand": True}) | |
| self.width = 1360 | |
| self.heigth = 600 | |
| self.master.title("RealTime Segmentation") | |
| self.master.geometry("%ix%i+%i+%i" % (self.width, self.heigth, 0, (768/2)-(self.heigth/2) )) | |
| self.drawing = False | |
| self.first_pause = True | |
| # inp.setperiodsize(self.width+1) | |
| self.master.after_idle(self.toggle_drawing) | |
| # dirty vars | |
| self.prev = 0.0 | |
| self.prev2 = 0.0 | |
| self.index = 0 | |
| def toggle_drawing(self, *args): | |
| if not self.first_pause == True: | |
| inp.pause(self.drawing) | |
| self.drawing = not self.drawing | |
| self.first_pause = False | |
| self.master.after_idle(self.draw) | |
| def draw(self): | |
| global buffer, factor, factor_len, bits, max_bit, max_bit_2, HZ, frame_time, frame_len, period_size | |
| h = self.heigth | |
| if not self.drawing: | |
| return | |
| if self.index >= self.width : | |
| self.canvas.delete("all || !line") | |
| self.index = 1 | |
| l, data = inp.read() | |
| buffer += data | |
| while len(buffer)> frame_len: | |
| vl = audioop.rms(buffer[:frame_len], bits) | |
| factor.append(vl) | |
| if len(factor) > factor_len: | |
| factor = factor[1:] | |
| avg_factor = 0 | |
| for item in factor: | |
| avg_factor += item | |
| avg_factor /= len(factor) | |
| ratio = 50 | |
| offset = (self.heigth/2)-200 | |
| self.canvas.create_line(self.index, ratio*self.prev+offset, | |
| self.index+1, ratio*(float(vl)/avg_factor)+offset, | |
| fill="blue", width="1") | |
| self.canvas.create_line(self.index, ratio*self.prev2+offset, | |
| self.index+1, ratio*(avg_factor/float(vl))+offset, | |
| fill="red", width="1") | |
| # print "\r%s\t%s\t%s\t%.4f\t%.4f" % (vl, avg_factor, (vl-avg_factor), (float(vl)/avg_factor)*10, (avg_factor/float(vl))*10) | |
| # print "len(buffer): %s frame_len: %s" % (len(buffer), frame_len) | |
| buffer = buffer[-frame_len:] | |
| self.prev = (float(vl)/avg_factor) | |
| self.prev2 = (avg_factor/float(vl)) | |
| self.index += 1 | |
| # for i in xrange(0,l-1): | |
| # self.canvas.create_line(i, num[0], | |
| # i+1, num[1], | |
| # ) | |
| self.master.update_idletasks() | |
| self.canvas.update_idletasks() | |
| self.master.after(0, self.draw) | |
| root = Tk() | |
| app = Gui(root) | |
| root.mainloop() |
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