python: audio

 

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""" python.exe -m pip install --upgrade pip pip install pyaudio pip install matplotlib https://matplotlib.org/3.1.1/gallery/animation/simple_anim.html https://matplotlib.org/stable/api/figure_api.html   """   # encoding: utf-8 # 版权所有 2023 涂聚文有限公司 # 许可信息查看： # 描述： # Author    : geovindu,Geovin Du 涂聚文. # IDE       : PyCharm 2023.1 python 311 # Datetime  : 2023/8/9 21:03 # User      : geovindu # Product   : PyCharm # Project   : pythonTkinterDemo # File      : AudioHelper.py # explain   : 学习   import pyaudio import wave import numpy as np import matplotlib as mpl import matplotlib.pyplot as plt     class audioHelper(object):     """      if __name__ == '__main__':    # 录制5s的声音    getAudio(5)    # 播放声音    play_audio('录音.wav')    # 录制5s的音乐    fig, line = plotInit()    # 播放音乐    play_audio('录音.wav')               """           def __init__(self):         """           """         def getAudio(slef,sec):         """         录音         :return:         """         # 创建对象         p = pyaudio.PyAudio()         # 创建流：采样位，声道数，采样频率，缓冲区大小，input=True         stream = p.open(format=pyaudio.paInt16, channels=1, rate=16000, input=True, frames_per_buffer=1024)         # 创建式打开音频文件         wf = wave.open('录音.wav', 'wb')         # 设置声道数         wf.setnchannels(1)         # 设置采样位数         wf.setsampwidth(p.get_sample_size(pyaudio.paInt16))         wf.setframerate(16000)         print('开始录音')         for w in range(int(16000 * sec / 1024)):              data = stream.read(1024)              wf.writeframes(data)         print('录音结束')         stream.stop_stream()         stream.close()         p.terminate()         wf.close()         # return 'test.wav'           def play_audio(self,file):         """         播放音乐         :return:         """         p = pyaudio.PyAudio()         wf = wave.open(file, 'rb')         stream = p.open(format=p.get_format_from_width(wf.getsampwidth()),                        channels=wf.getnchannels(),                        rate=wf.getframerate(),                        output=True                       )         data = wf.readframes(1024)         while len(data) > 0:            stream.write(data)            data = wf.readframes(1024)         stream.stop_stream()         stream.close()         p.terminate()         wf.close()       def play_audio(sslf,file):         """         播放音乐         :return:         """         fig, ax = plt.subplots()         x = np.arange(0, 2 * np.pi, 0.01)         line, = ax.plot(x, np.sin(x))         p = pyaudio.PyAudio()         wf = wave.open(file, 'rb')         stream = p.open(format=p.get_format_from_width(wf.getsampwidth()),                        channels=wf.getnchannels(),                        rate=wf.getframerate(),                        output=True                       )         data = wf.readframes(1024)         while len(data) > 0:            stream.write(data)            data = wf.readframes(1024)            data = np.frombuffer(data, dtype=np.int16)            if len(data) <= 0:                break            print(data)            line.set_ydata(data)            fig.canvas.draw()            fig.canvas.flush_events()            plt.pause(0.01)           stream.stop_stream()         stream.close()         p.terminate()         wf.close()         def plotInit(self):         """          录制5s的音乐         :return:         """         CHUNK = 1024         mpl.rcParams['toolbar'] = 'None'         fig, ax = plt.subplots(figsize=(12, 3))         ax.set_xlim(0, CHUNK - 1)         ax.set_ylim(-2 ** 15, 2 ** 15)         plt.subplots_adjust(left=0.001, top=0.999, right=0.999, bottom=0.001)         plt.get_current_fig_manager().set_window_title('wave')         x = np.arange(0, CHUNK)         line, = ax.plot(x, np.random.rand(CHUNK), color='#C04851')         plt.axis('off')         plt.ion()         plt.show()         return fig, line