audio_recorder.ipynb

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   "source": [
    "import pyaudio\n",
    "import wave\n",
    "\n",
    "CHUNK = 1024 \n",
    "FORMAT = pyaudio.paInt16 #paInt8\n",
    "CHANNELS = 2 \n",
    "RATE = 44100 #sample rate\n",
    "RECORD_SECONDS = 4\n",
    "WAVE_OUTPUT_FILENAME = \"output10.wav\"\n",
    "\n",
    "p = pyaudio.PyAudio()\n",
    "\n",
    "stream = p.open(format=FORMAT,\n",
    "                channels=CHANNELS,\n",
    "                rate=RATE,\n",
    "                input=True,\n",
    "                frames_per_buffer=CHUNK) #buffer\n",
    "\n",
    "print(\"* recording\")\n",
    "\n",
    "frames = []\n",
    "\n",
    "for i in range(0, int(RATE / CHUNK * RECORD_SECONDS)):\n",
    "    data = stream.read(CHUNK)\n",
    "    frames.append(data) # 2 bytes(16 bits) per channel\n",
    "\n",
    "print(\"* done recording\")\n",
    "\n",
    "stream.stop_stream()\n",
    "stream.close()\n",
    "p.terminate()\n",
    "\n",
    "wf = wave.open(WAVE_OUTPUT_FILENAME, 'wb')\n",
    "wf.setnchannels(CHANNELS)\n",
    "wf.setsampwidth(p.get_sample_size(FORMAT))\n",
    "wf.setframerate(RATE)\n",
    "wf.writeframes(b''.join(frames))\n",
    "wf.close()"
   ]
  }
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