240E-Homework1.ipynb

{
 "metadata": {
  "name": ""
 },
 "nbformat": 3,
 "nbformat_minor": 0,
 "worksheets": [
  {
   "cells": [
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "Robert Miller\n",
      "MIR"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "from scipy.io import wavfile\n",
      "import glob\n",
      "from os import *"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 1
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "myWavs = glob.glob('/Users/milrober/Desktop/MIR/240E/*.wav')"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 2
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "sndlib =  []\n",
      "smpRates = []\n",
      "for i, title in enumerate(myWavs):\n",
      "    sr, temp = wavfile.read(myWavs[i])\n",
      "    sndlib.append(temp)\n",
      "    smpRates.append(sr)"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stderr",
       "text": [
        "/usr/local/Cellar/python/2.7.5/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/scipy-0.13.2-py2.7-macosx-10.8-x86_64.egg/scipy/io/wavfile.py:42: WavFileWarning: Unknown wave file format\n",
        "  warnings.warn(\"Unknown wave file format\", WavFileWarning)\n"
       ]
      }
     ],
     "prompt_number": 3
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "def getDur(sndFile, sr):\n",
      "    frameRate = sr / sndFile.shape[1] \n",
      "    totalFrames = sndFile.shape[0] / sndFile.shape[1]\n",
      "    return float(totalFrames / frameRate) / 60"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 4
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "durations = []\n",
      "for i in range(len(sndlib)):\n",
      "    durations.append(getDur(sndlib[i], smpRates[i]))"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 5
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "hist(durations)"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 6,
       "text": [
        "(array([  3.,   1.,   2.,   9.,  18.,  10.,   3.,   1.,   0.,   1.]),\n",
        " array([ 0.48333333,  1.27333333,  2.06333333,  2.85333333,  3.64333333,\n",
        "        4.43333333,  5.22333333,  6.01333333,  6.80333333,  7.59333333,\n",
        "        8.38333333]),\n",
        " <a list of 10 Patch objects>)"
       ]
      },
      {
       "metadata": {},
       "output_type": "display_data",
       "png": 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6urpYZgMABBH1HPcdd9yhS5cuxTILACAMXDkJAIahuAHAMBQ3ABiG4gYAw1DcAGAYihsA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\n",
       "text": [
        "<matplotlib.figure.Figure at 0x10fcbaf50>"
       ]
      }
     ],
     "prompt_number": 6
    }
   ],
   "metadata": {}
  }
 ]
}