質問編集履歴
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test
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test
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@@ -12,100 +12,6 @@
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停止ボタンを押したらフラグをfalseに変更して音量測定を停止させたいのですが、処理が止まらなくて困っています。
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停止ボタンを押して止めるとしたらどのようにすればよろしいのでしょうか。
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### 該当のソースコード
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```ここに言語名を入力
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import pyaudio
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import numpy as np
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import sys
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import time
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import tkinter as tk
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import tkinter.ttk as ttk
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import tkinter.scrolledtext as tkst
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class MainApp(tk.Tk):
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def __init__(self):
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super(MainApp, self).__init__()
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p = pyaudio.PyAudio()
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# set prams
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INPUT_DEVICE_INDEX = 1
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CHUNK = 128
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FORMAT = pyaudio.paInt16
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CHANNELS = int(p.get_device_info_by_index(INPUT_DEVICE_INDEX)["maxInputChannels"])
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SAMPLING_RATE = int(p.get_device_info_by_index(INPUT_DEVICE_INDEX)["defaultSampleRate"])
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RECORD_SECONDS = 1
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RECORDING = False
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self.title("騒音測定")
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# 測定開始ボタン押下時処理
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def StartBtnClicked():
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RECORDING = True
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RecordValume()
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# 測定終了ボタン押下時処理
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def StopBtnClicked():
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if RECORDING is True:
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RECORDING = False
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# ボタンの配置
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self.start_btn = ttk.Button(self, text="開始", command = StartBtnClicked, )
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self.stop_btn = ttk.Button(self, text="終了", command = StopBtnClicked, )
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self.start_btn.grid(row=0, column=2, sticky=tk.W, padx=15, pady=10, ipady=10)
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self.stop_btn.grid(row=0, column=4, sticky=tk.N, padx=15, pady=10, ipady=10)
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# amp to db
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def to_db(x, base=1):
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y=20*np.log10(x/base)
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return y
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# record audio valume
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def RecordValume():
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while self.AudioRecording is True:
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start = time.time()
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stream = p.open(format = FORMAT,
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channels = CHANNELS,
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rate = SAMPLING_RATE,
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input = True,
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frames_per_buffer = CHUNK,
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input_device_index = INPUT_DEVICE_INDEX
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)
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# get specified range of data. size of data equals (CHUNK * (SAMPLING_RATE / CHUNK) * RECORD_SECONDS)
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data = np.empty(0)
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for i in range(0, int(SAMPLING_RATE / CHUNK * RECORD_SECONDS)):
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elm = stream.read(CHUNK, exception_on_overflow = False)
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elm = np.frombuffer(elm, dtype="int16")/float((np.power(2,16)/2)-1)
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data = np.hstack([data, elm])
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# calc RMS
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rms = np.sqrt(np.mean([elm * elm for elm in data]))
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# RMS to db
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db = to_db(rms, 20e-6)
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stream.close()
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elapsed_time = time.time() - start
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print("elapsed_time:{:.3f}[sec], DB:{:.3f}[db]".format(elapsed_time, db))
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# イベント監視開始処理
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def start(self):
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self.mainloop()
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if __name__ == "__main__":
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app = MainApp()
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app.start()
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```
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