import os
import thinkdsp
from winsound import PlaySound
import matplotlib.pyplot as plt
from thinkdsp import decorate
from thinkdsp import SquareSignal
def play(file, flags):
print('Now play ' + file)
PlaySound(file, flags)
print('end')
square = SquareSignal(1500).make_wave(duration=0.5, framerate=10000)
square.make_spectrum().plot()
decorate(xlabel='Frequency (Hz)')
square.make_audio()
square.write("方波声音.wav")
play("方波声音.wav", flags=1)
plt.show()
from thinkdsp import decorate from thinkdsp import Sinusoid from thinkdsp import normalize, unbias import numpy as np import matplotlib.pyplot as plt from thinkdsp import SquareSignal from thinkdsp import TriangleSignal from thinkdsp import read_wave square = SquareSignal(1100).make_wave(duration=0.5, framerate=10000) square.make_spectrum().plot() decorate(xlabel='Frequency (Hz)') square.write(filename="2.3.wav") plt.show()
from thinkdsp import Sinusoid
from thinkdsp import normalize, unbias
from thinkdsp import TriangleSignal
from thinkdsp import decorate
from thinkdsp import SquareSignal
import os
import numpy as np
import matplotlib.pyplot as plt
#方波频率1100HZ 采样10000HZ 波长0.5秒
square = SquareSignal(1100).make_wave(duration=0.5, framerate=10000)
square.write(filename='output2-3.wav')
#显示中文
plt.rcParams['font.sans-serif'] = ['SimHei']
plt.rcParams['axes.unicode_minus'] = False
square.make_spectrum().plot()
plt.ylabel('幅度(方波频谱)')
plt.xlabel('频率（HZ）')
plt.show()
from thinkdsp import Sinusoid from thinkdsp import normalize,unbias from thinkdsp import SquareSignal from thinkdsp import TriangleSignal from thinkdsp import decorate import matplotlib.pyplot as plt import numpy as np square=SquareSignal(1100).make_wave(duration=0.5,framerate=10000) square.make_audio() square.write(filename='Square.wav') square.make_spectrum().plot() decorate(xlabel='Frequency (Hz)') plt.show()
