Untitled.ipynb

{
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     "text": [
      "{'index': 0, 'structVersion': 2, 'name': 'HDA Intel PCH: ALC1150 Analog (hw:0,0)', 'hostApi': 0, 'maxInputChannels': 2, 'maxOutputChannels': 6, 'defaultLowInputLatency': 0.008707482993197279, 'defaultLowOutputLatency': 0.008707482993197279, 'defaultHighInputLatency': 0.034829931972789115, 'defaultHighOutputLatency': 0.034829931972789115, 'defaultSampleRate': 44100.0}\n",
      "{'index': 1, 'structVersion': 2, 'name': 'HDA Intel PCH: ALC1150 Digital (hw:0,1)', 'hostApi': 0, 'maxInputChannels': 0, 'maxOutputChannels': 2, 'defaultLowInputLatency': -1.0, 'defaultLowOutputLatency': 0.008707482993197279, 'defaultHighInputLatency': -1.0, 'defaultHighOutputLatency': 0.034829931972789115, 'defaultSampleRate': 44100.0}\n",
      "{'index': 2, 'structVersion': 2, 'name': 'HDA Intel PCH: ALC1150 Alt Analog (hw:0,2)', 'hostApi': 0, 'maxInputChannels': 2, 'maxOutputChannels': 0, 'defaultLowInputLatency': 0.008707482993197279, 'defaultLowOutputLatency': -1.0, 'defaultHighInputLatency': 0.034829931972789115, 'defaultHighOutputLatency': -1.0, 'defaultSampleRate': 44100.0}\n",
      "{'index': 3, 'structVersion': 2, 'name': 'HDA NVidia: HDMI 0 (hw:1,3)', 'hostApi': 0, 'maxInputChannels': 0, 'maxOutputChannels': 8, 'defaultLowInputLatency': -1.0, 'defaultLowOutputLatency': 0.008707482993197279, 'defaultHighInputLatency': -1.0, 'defaultHighOutputLatency': 0.034829931972789115, 'defaultSampleRate': 44100.0}\n",
      "{'index': 4, 'structVersion': 2, 'name': 'HDA NVidia: HDMI 1 (hw:1,7)', 'hostApi': 0, 'maxInputChannels': 0, 'maxOutputChannels': 8, 'defaultLowInputLatency': -1.0, 'defaultLowOutputLatency': 0.008707482993197279, 'defaultHighInputLatency': -1.0, 'defaultHighOutputLatency': 0.034829931972789115, 'defaultSampleRate': 44100.0}\n",
      "{'index': 5, 'structVersion': 2, 'name': 'HDA NVidia: HDMI 2 (hw:1,8)', 'hostApi': 0, 'maxInputChannels': 0, 'maxOutputChannels': 8, 'defaultLowInputLatency': -1.0, 'defaultLowOutputLatency': 0.008707482993197279, 'defaultHighInputLatency': -1.0, 'defaultHighOutputLatency': 0.034829931972789115, 'defaultSampleRate': 44100.0}\n",
      "{'index': 6, 'structVersion': 2, 'name': 'HDA NVidia: HDMI 3 (hw:1,9)', 'hostApi': 0, 'maxInputChannels': 0, 'maxOutputChannels': 8, 'defaultLowInputLatency': -1.0, 'defaultLowOutputLatency': 0.008707482993197279, 'defaultHighInputLatency': -1.0, 'defaultHighOutputLatency': 0.034829931972789115, 'defaultSampleRate': 44100.0}\n",
      "{'index': 7, 'structVersion': 2, 'name': 'UA-22: USB Audio (hw:2,0)', 'hostApi': 0, 'maxInputChannels': 2, 'maxOutputChannels': 2, 'defaultLowInputLatency': 0.008707482993197279, 'defaultLowOutputLatency': 0.008707482993197279, 'defaultHighInputLatency': 0.034829931972789115, 'defaultHighOutputLatency': 0.034829931972789115, 'defaultSampleRate': 44100.0}\n",
      "{'index': 8, 'structVersion': 2, 'name': 'sysdefault', 'hostApi': 0, 'maxInputChannels': 128, 'maxOutputChannels': 128, 'defaultLowInputLatency': 0.021333333333333333, 'defaultLowOutputLatency': 0.021333333333333333, 'defaultHighInputLatency': 0.021333333333333333, 'defaultHighOutputLatency': 0.021333333333333333, 'defaultSampleRate': 48000.0}\n",
      "{'index': 9, 'structVersion': 2, 'name': 'front', 'hostApi': 0, 'maxInputChannels': 0, 'maxOutputChannels': 6, 'defaultLowInputLatency': -1.0, 'defaultLowOutputLatency': 0.008707482993197279, 'defaultHighInputLatency': -1.0, 'defaultHighOutputLatency': 0.034829931972789115, 'defaultSampleRate': 44100.0}\n",
      "{'index': 10, 'structVersion': 2, 'name': 'surround21', 'hostApi': 0, 'maxInputChannels': 0, 'maxOutputChannels': 128, 'defaultLowInputLatency': -1.0, 'defaultLowOutputLatency': 0.008707482993197279, 'defaultHighInputLatency': -1.0, 'defaultHighOutputLatency': 0.034829931972789115, 'defaultSampleRate': 44100.0}\n",
      "{'index': 11, 'structVersion': 2, 'name': 'surround40', 'hostApi': 0, 'maxInputChannels': 0, 'maxOutputChannels': 6, 'defaultLowInputLatency': -1.0, 'defaultLowOutputLatency': 0.008707482993197279, 'defaultHighInputLatency': -1.0, 'defaultHighOutputLatency': 0.034829931972789115, 'defaultSampleRate': 44100.0}\n",
      "{'index': 12, 'structVersion': 2, 'name': 'surround41', 'hostApi': 0, 'maxInputChannels': 0, 'maxOutputChannels': 128, 'defaultLowInputLatency': -1.0, 'defaultLowOutputLatency': 0.008707482993197279, 'defaultHighInputLatency': -1.0, 'defaultHighOutputLatency': 0.034829931972789115, 'defaultSampleRate': 44100.0}\n",
      "{'index': 13, 'structVersion': 2, 'name': 'surround50', 'hostApi': 0, 'maxInputChannels': 0, 'maxOutputChannels': 128, 'defaultLowInputLatency': -1.0, 'defaultLowOutputLatency': 0.008707482993197279, 'defaultHighInputLatency': -1.0, 'defaultHighOutputLatency': 0.034829931972789115, 'defaultSampleRate': 44100.0}\n",
      "{'index': 14, 'structVersion': 2, 'name': 'surround51', 'hostApi': 0, 'maxInputChannels': 0, 'maxOutputChannels': 6, 'defaultLowInputLatency': -1.0, 'defaultLowOutputLatency': 0.008707482993197279, 'defaultHighInputLatency': -1.0, 'defaultHighOutputLatency': 0.034829931972789115, 'defaultSampleRate': 44100.0}\n",
      "{'index': 15, 'structVersion': 2, 'name': 'surround71', 'hostApi': 0, 'maxInputChannels': 0, 'maxOutputChannels': 6, 'defaultLowInputLatency': -1.0, 'defaultLowOutputLatency': 0.008707482993197279, 'defaultHighInputLatency': -1.0, 'defaultHighOutputLatency': 0.034829931972789115, 'defaultSampleRate': 44100.0}\n",
      "{'index': 16, 'structVersion': 2, 'name': 'iec958', 'hostApi': 0, 'maxInputChannels': 0, 'maxOutputChannels': 2, 'defaultLowInputLatency': -1.0, 'defaultLowOutputLatency': 0.008707482993197279, 'defaultHighInputLatency': -1.0, 'defaultHighOutputLatency': 0.034829931972789115, 'defaultSampleRate': 44100.0}\n",
      "{'index': 17, 'structVersion': 2, 'name': 'spdif', 'hostApi': 0, 'maxInputChannels': 0, 'maxOutputChannels': 2, 'defaultLowInputLatency': -1.0, 'defaultLowOutputLatency': 0.008707482993197279, 'defaultHighInputLatency': -1.0, 'defaultHighOutputLatency': 0.034829931972789115, 'defaultSampleRate': 44100.0}\n",
      "{'index': 18, 'structVersion': 2, 'name': 'pulse', 'hostApi': 0, 'maxInputChannels': 32, 'maxOutputChannels': 32, 'defaultLowInputLatency': 0.008707482993197279, 'defaultLowOutputLatency': 0.008707482993197279, 'defaultHighInputLatency': 0.034829931972789115, 'defaultHighOutputLatency': 0.034829931972789115, 'defaultSampleRate': 44100.0}\n",
      "{'index': 19, 'structVersion': 2, 'name': 'usb_duo', 'hostApi': 0, 'maxInputChannels': 2, 'maxOutputChannels': 2, 'defaultLowInputLatency': 0.008707482993197279, 'defaultLowOutputLatency': 0.008707482993197279, 'defaultHighInputLatency': 0.034829931972789115, 'defaultHighOutputLatency': 0.034829931972789115, 'defaultSampleRate': 44100.0}\n",
      "{'index': 20, 'structVersion': 2, 'name': 'usb_duo_in', 'hostApi': 0, 'maxInputChannels': 2, 'maxOutputChannels': 0, 'defaultLowInputLatency': 0.023219954648526078, 'defaultLowOutputLatency': -1.0, 'defaultHighInputLatency': 0.023219954648526078, 'defaultHighOutputLatency': -1.0, 'defaultSampleRate': 44100.0}\n",
      "{'index': 21, 'structVersion': 2, 'name': 'adc1', 'hostApi': 0, 'maxInputChannels': 128, 'maxOutputChannels': 0, 'defaultLowInputLatency': 0.023219954648526078, 'defaultLowOutputLatency': -1.0, 'defaultHighInputLatency': 0.023219954648526078, 'defaultHighOutputLatency': -1.0, 'defaultSampleRate': 44100.0}\n",
      "{'index': 22, 'structVersion': 2, 'name': 'adc2', 'hostApi': 0, 'maxInputChannels': 128, 'maxOutputChannels': 0, 'defaultLowInputLatency': 0.023219954648526078, 'defaultLowOutputLatency': -1.0, 'defaultHighInputLatency': 0.023219954648526078, 'defaultHighOutputLatency': -1.0, 'defaultSampleRate': 44100.0}\n",
      "{'index': 23, 'structVersion': 2, 'name': 'dmix', 'hostApi': 0, 'maxInputChannels': 0, 'maxOutputChannels': 2, 'defaultLowInputLatency': -1.0, 'defaultLowOutputLatency': 0.021333333333333333, 'defaultHighInputLatency': -1.0, 'defaultHighOutputLatency': 0.021333333333333333, 'defaultSampleRate': 48000.0}\n",
      "{'index': 24, 'structVersion': 2, 'name': 'default', 'hostApi': 0, 'maxInputChannels': 32, 'maxOutputChannels': 32, 'defaultLowInputLatency': 0.008707482993197279, 'defaultLowOutputLatency': 0.008707482993197279, 'defaultHighInputLatency': 0.034829931972789115, 'defaultHighOutputLatency': 0.034829931972789115, 'defaultSampleRate': 44100.0}\n",
      "{'index': 25, 'structVersion': 2, 'name': '/dev/dsp', 'hostApi': 1, 'maxInputChannels': 16, 'maxOutputChannels': 16, 'defaultLowInputLatency': 0.008707482993197279, 'defaultLowOutputLatency': 0.008707482993197279, 'defaultHighInputLatency': 0.034829931972789115, 'defaultHighOutputLatency': 0.034829931972789115, 'defaultSampleRate': 44100.0}\n"
     ]
    }
   ],
   "source": [
    "import pyaudio\n",
    "p = pyaudio.PyAudio()\n",
    "for i in range(p.get_device_count()):\n",
    "    print(p.get_device_info_by_index(i))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{'defaultHighInputLatency': 0.034829931972789115,\n",
       " 'defaultHighOutputLatency': 0.034829931972789115,\n",
       " 'defaultLowInputLatency': 0.008707482993197279,\n",
       " 'defaultLowOutputLatency': 0.008707482993197279,\n",
       " 'defaultSampleRate': 44100.0,\n",
       " 'hostApi': 1,\n",
       " 'index': 25,\n",
       " 'maxInputChannels': 16,\n",
       " 'maxOutputChannels': 16,\n",
       " 'name': '/dev/dsp',\n",
       " 'structVersion': 2}"
      ]
     },
     "execution_count": 2,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "p.get_device_info_by_index(i)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "21"
      ]
     },
     "execution_count": 6,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "def get_device_by_name(pa, name):\n",
    "    all_dev = [p.get_device_info_by_index(j) for j in range(p.get_device_count())]\n",
    "    found = [d for d in all_dev if d['name']==name]\n",
    "    if len(found) > 1:\n",
    "        raise ValueError('Found duplicated name devices')\n",
    "    if len(found) == 0:\n",
    "        raise ValueError('Not found device named {}'.format(name))\n",
    "    return found[0]\n",
    "\n",
    "get_device_by_name(p, 'adc1')['index']"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "a=bytearray()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "a.extend(b'')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [
    {
     "ename": "TypeError",
     "evalue": "time() takes no arguments (1 given)",
     "output_type": "error",
     "traceback": [
      "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
      "\u001b[0;31mTypeError\u001b[0m                                 Traceback (most recent call last)",
      "\u001b[0;32m<ipython-input-2-42e98f6fa632>\u001b[0m in \u001b[0;36m<module>\u001b[0;34m()\u001b[0m\n\u001b[1;32m      1\u001b[0m \u001b[0;32mimport\u001b[0m \u001b[0mtime\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m----> 2\u001b[0;31m \u001b[0mtime\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mtime\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;36m1\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m",
      "\u001b[0;31mTypeError\u001b[0m: time() takes no arguments (1 given)"
     ]
    }
   ],
   "source": [
    "import time\n",
    "time.time(1)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "metadata": {},
   "outputs": [],
   "source": [
    "time.sleep(0.1)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": []
  }
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