/apidocs/echonest.audio.AudioAnalysis-class.html

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  41.       <span class="breadcrumbs">
    42. 

  42.         <a href="echonest-module.html">Package&nbsp;echonest</a> ::
    43. 

  43.         <a href="echonest.audio-module.html">Module&nbsp;audio</a> ::
    44. 

  44.         Class&nbsp;AudioAnalysis
    45. 

  45.       </span>
    46. 

  46.     </td>
    47. 

  47.     <td>
    48. 

  48.       <table cellpadding="0" cellspacing="0">
    49. 

  49.         <!-- hide/show private -->
    50. 

  50.         <tr><td align="right"><span class="options">[<a href="javascript:void(0);" class="privatelink"
    51. 

  51.     onclick="toggle_private();">hide&nbsp;private</a>]</span></td></tr>
    52. 

  52.         <tr><td align="right"><span class="options"
    53. 

  53.             >[<a href="frames.html" target="_top">frames</a
    54. 

  54.             >]&nbsp;|&nbsp;<a href="echonest.audio.AudioAnalysis-class.html"
    55. 

  55.             target="_top">no&nbsp;frames</a>]</span></td></tr>
    56. 

  56.       </table>
    57. 

  57.     </td>
    58. 

  58.   </tr>
    59. 

  59. </table>
    60. 

  60. <!-- ==================== CLASS DESCRIPTION ==================== -->
    61. 

  61. <h1 class="epydoc">Class AudioAnalysis</h1><p class="nomargin-top"><span class="codelink"><a href="echonest.audio-pysrc.html#AudioAnalysis">source&nbsp;code</a></span></p>
    62. 

  62. <center>
    63. 

  63. 

  64. </center>
    65. 

  65. <hr />
    66. 

  66. <p>This class wraps <code class="link">echonest.web</code> to allow transparent caching of the
    67. 

  67. audio analysis of an audio file.</p>
    68. 

  68. <p>For example, the following script will display the bars of a track
    69. 

  69. twice:</p>
    70. 

  70. <pre class="rst-literal-block">
    71. 

  71. from echonest import *
    72. 

  72. a = audio.AudioAnalysis('YOUR_TRACK_ID_HERE')
    73. 

  73. a.bars
    74. 

  74. a.bars
    75. 

  75. </pre>
    76. 

  76. <p>The first time <code class="link">a.bars</code> is called, a network request is made of the
    77. 

  77. <a class="rst-reference external" href="http://the.echonest.com/" target="_top">Echo Nest</a> <a class="rst-reference external" href="http://developer.echonest.com/pages/overview?version=2" target="_top">Analyze API</a>.  The second time time <code class="link">a.bars</code> is called, the
    78. 

  78. cached value is returned immediately.</p>
    79. 

  79. <p>An <a href="echonest.audio.AudioAnalysis-class.html" class="link">AudioAnalysis</a> object can be created using an existing ID, as in
    80. 

  80. the example above, or by specifying the audio file to upload in
    81. 

  81. order to create the ID, as in:</p>
    82. 

  82. <pre class="rst-literal-block">
    83. 

  83. a = audio.AudioAnalysis('FULL_PATH_TO_AUDIO_FILE')
    84. 

  84. </pre>
    85. 

  85. 

  86. <!-- ==================== INSTANCE METHODS ==================== -->
    87. 

  87. <a name="section-InstanceMethods"></a>
    88. 

  88. <table class="summary" border="1" cellpadding="3"
    89. 

  89.        cellspacing="0" width="100%" bgcolor="white">
    90. 

  90. <tr bgcolor="#70b0f0" class="table-header">
    91. 

  91.   <td colspan="2" class="table-header">
    92. 

  92.     <table border="0" cellpadding="0" cellspacing="0" width="100%">
    93. 

  93.       <tr valign="top">
    94. 

  94.         <td align="left"><span class="table-header">Instance Methods</span></td>
    95. 

  95.         <td align="right" valign="top"
    96. 

  96.          ><span class="options">[<a href="#section-InstanceMethods"
    97. 

  97.          class="privatelink" onclick="toggle_private();"
    98. 

  98.          >hide private</a>]</span></td>
    99. 

  99.       </tr>
    100. 

  100.     </table>
    101. 

  101.   </td>
    102. 

  102. </tr>
    103. 

  103. <tr>
    104. 

  104.     <td width="15%" align="right" valign="top" class="summary">
    105. 

  105.       <span class="summary-type">&nbsp;</span>
    106. 

  106.     </td><td class="summary">
    107. 

  107.       <table width="100%" cellpadding="0" cellspacing="0" border="0">
    108. 

  108.         <tr>
    109. 

  109.           <td><span class="summary-sig"><a href="echonest.audio.AudioAnalysis-class.html#__init__" class="summary-sig-name">__init__</a>(<span class="summary-sig-arg">self</span>,
    110. 

  110.         <span class="summary-sig-arg">path_or_identifier</span>)</span><br />
    111. 

  111.       Constructor.</td>
    112. 

  112.           <td align="right" valign="top">
    113. 

  113.             <span class="codelink"><a href="echonest.audio-pysrc.html#AudioAnalysis.__init__">source&nbsp;code</a></span>
    114. 

  114.             
    115. 

  115.           </td>
    116. 

  116.         </tr>
    117. 

  117.       </table>
    118. 

  118.       
    119. 

  119.     </td>
    120. 

  120.   </tr>
    121. 

  121. <tr>
    122. 

  122.     <td width="15%" align="right" valign="top" class="summary">
    123. 

  123.       <span class="summary-type">&nbsp;</span>
    124. 

  124.     </td><td class="summary">
    125. 

  125.       <table width="100%" cellpadding="0" cellspacing="0" border="0">
    126. 

  126.         <tr>
    127. 

  127.           <td><span class="summary-sig"><a name="__getstate__"></a><span class="summary-sig-name">__getstate__</span>(<span class="summary-sig-arg">self</span>)</span><br />
    128. 

  128.       Eliminates the circular reference for pickling.</td>
    129. 

  129.           <td align="right" valign="top">
    130. 

  130.             <span class="codelink"><a href="echonest.audio-pysrc.html#AudioAnalysis.__getstate__">source&nbsp;code</a></span>
    131. 

  131.             
    132. 

  132.           </td>
    133. 

  133.         </tr>
    134. 

  134.       </table>
    135. 

  135.       
    136. 

  136.     </td>
    137. 

  137.   </tr>
    138. 

  138. <tr>
    139. 

  139.     <td width="15%" align="right" valign="top" class="summary">
    140. 

  140.       <span class="summary-type">&nbsp;</span>
    141. 

  141.     </td><td class="summary">
    142. 

  142.       <table width="100%" cellpadding="0" cellspacing="0" border="0">
    143. 

  143.         <tr>
    144. 

  144.           <td><span class="summary-sig"><a name="__setstate__"></a><span class="summary-sig-name">__setstate__</span>(<span class="summary-sig-arg">self</span>,
    145. 

  145.         <span class="summary-sig-arg">state</span>)</span><br />
    146. 

  146.       Recreates circular references after unpickling.</td>
    147. 

  147.           <td align="right" valign="top">
    148. 

  148.             <span class="codelink"><a href="echonest.audio-pysrc.html#AudioAnalysis.__setstate__">source&nbsp;code</a></span>
    149. 

  149.             
    150. 

  150.           </td>
    151. 

  151.         </tr>
    152. 

  152.       </table>
    153. 

  153.       
    154. 

  154.     </td>
    155. 

  155.   </tr>
    156. 

  156.   <tr>
    157. 

  157.     <td colspan="2" class="summary">
    158. 

  158.     <p class="indent-wrapped-lines"><b>Inherited from <code>object</code></b>:
    159. 

  159.       <code>__delattr__</code>,
    160. 

  160.       <code>__format__</code>,
    161. 

  161.       <code>__getattribute__</code>,
    162. 

  162.       <code>__hash__</code>,
    163. 

  163.       <code>__new__</code>,
    164. 

  164.       <code>__reduce__</code>,
    165. 

  165.       <code>__reduce_ex__</code>,
    166. 

  166.       <code>__repr__</code>,
    167. 

  167.       <code>__setattr__</code>,
    168. 

  168.       <code>__sizeof__</code>,
    169. 

  169.       <code>__str__</code>,
    170. 

  170.       <code>__subclasshook__</code>
    171. 

  171.       </p>
    172. 

  172.     </td>
    173. 

  173.   </tr>
    174. 

  174. </table>
    175. 

  175. <!-- ==================== PROPERTIES ==================== -->
    176. 

  176. <a name="section-Properties"></a>
    177. 

  177. <table class="summary" border="1" cellpadding="3"
    178. 

  178.        cellspacing="0" width="100%" bgcolor="white">
    179. 

  179. <tr bgcolor="#70b0f0" class="table-header">
    180. 

  180.   <td colspan="2" class="table-header">
    181. 

  181.     <table border="0" cellpadding="0" cellspacing="0" width="100%">
    182. 

  182.       <tr valign="top">
    183. 

  183.         <td align="left"><span class="table-header">Properties</span></td>
    184. 

  184.         <td align="right" valign="top"
    185. 

  185.          ><span class="options">[<a href="#section-Properties"
    186. 

  186.          class="privatelink" onclick="toggle_private();"
    187. 

  187.          >hide private</a>]</span></td>
    188. 

  188.       </tr>
    189. 

  189.     </table>
    190. 

  190.   </td>
    191. 

  191. </tr>
    192. 

  192. <tr>
    193. 

  193.     <td width="15%" align="right" valign="top" class="summary">
    194. 

  194.       <span class="summary-type">&nbsp;</span>
    195. 

  195.     </td><td class="summary">
    196. 

  196.         <a href="echonest.audio.AudioAnalysis-class.html#bars" class="summary-name">bars</a>
    197. 

  197.     </td>
    198. 

  198.   </tr>
    199. 

  199. <tr>
    200. 

  200.     <td width="15%" align="right" valign="top" class="summary">
    201. 

  201.       <span class="summary-type">&nbsp;</span>
    202. 

  202.     </td><td class="summary">
    203. 

  203.         <a href="echonest.audio.AudioAnalysis-class.html#beats" class="summary-name">beats</a>
    204. 

  204.     </td>
    205. 

  205.   </tr>
    206. 

  206. <tr>
    207. 

  207.     <td width="15%" align="right" valign="top" class="summary">
    208. 

  208.       <span class="summary-type">&nbsp;</span>
    209. 

  209.     </td><td class="summary">
    210. 

  210.         <a href="echonest.audio.AudioAnalysis-class.html#tatums" class="summary-name">tatums</a>
    211. 

  211.     </td>
    212. 

  212.   </tr>
    213. 

  213. <tr>
    214. 

  214.     <td width="15%" align="right" valign="top" class="summary">
    215. 

  215.       <span class="summary-type">&nbsp;</span>
    216. 

  216.     </td><td class="summary">
    217. 

  217.         <a href="echonest.audio.AudioAnalysis-class.html#sections" class="summary-name">sections</a>
    218. 

  218.     </td>
    219. 

  219.   </tr>
    220. 

  220. <tr>
    221. 

  221.     <td width="15%" align="right" valign="top" class="summary">
    222. 

  222.       <span class="summary-type">&nbsp;</span>
    223. 

  223.     </td><td class="summary">
    224. 

  224.         <a href="echonest.audio.AudioAnalysis-class.html#segments" class="summary-name">segments</a>
    225. 

  225.     </td>
    226. 

  226.   </tr>
    227. 

  227.   <tr>
    228. 

  228.     <td colspan="2" class="summary">
    229. 

  229.     <p class="indent-wrapped-lines"><b>Inherited from <code>object</code></b>:
    230. 

  230.       <code>__class__</code>
    231. 

  231.       </p>
    232. 

  232.     </td>
    233. 

  233.   </tr>
    234. 

  234. </table>
    235. 

  235. <!-- ==================== METHOD DETAILS ==================== -->
    236. 

  236. <a name="section-MethodDetails"></a>
    237. 

  237. <table class="details" border="1" cellpadding="3"
    238. 

  238.        cellspacing="0" width="100%" bgcolor="white">
    239. 

  239. <tr bgcolor="#70b0f0" class="table-header">
    240. 

  240.   <td colspan="2" class="table-header">
    241. 

  241.     <table border="0" cellpadding="0" cellspacing="0" width="100%">
    242. 

  242.       <tr valign="top">
    243. 

  243.         <td align="left"><span class="table-header">Method Details</span></td>
    244. 

  244.         <td align="right" valign="top"
    245. 

  245.          ><span class="options">[<a href="#section-MethodDetails"
    246. 

  246.          class="privatelink" onclick="toggle_private();"
    247. 

  247.          >hide private</a>]</span></td>
    248. 

  248.       </tr>
    249. 

  249.     </table>
    250. 

  250.   </td>
    251. 

  251. </tr>
    252. 

  252. </table>
    253. 

  253. <a name="__init__"></a>
    254. 

  254. <div>
    255. 

  255. <table class="details" border="1" cellpadding="3"
    256. 

  256.        cellspacing="0" width="100%" bgcolor="white">
    257. 

  257. <tr><td>
    258. 

  258.   <table width="100%" cellpadding="0" cellspacing="0" border="0">
    259. 

  259.   <tr valign="top"><td>
    260. 

  260.   <h3 class="epydoc"><span class="sig"><span class="sig-name">__init__</span>(<span class="sig-arg">self</span>,
    261. 

  261.         <span class="sig-arg">path_or_identifier</span>)</span>
    262. 

  262.     <br /><em class="fname">(Constructor)</em>
    263. 

  263.   </h3>
    264. 

  264.   </td><td align="right" valign="top"
    265. 

  265.     ><span class="codelink"><a href="echonest.audio-pysrc.html#AudioAnalysis.__init__">source&nbsp;code</a></span>&nbsp;
    266. 

  266.     </td>
    267. 

  267.   </tr></table>
    268. 

  268.   
    269. 

  269.   <p>Constructor.  If the argument is a valid local path or a URL,
    270. 

  270. the track ID is generated by uploading the file to the <a class="rst-reference external" href="http://the.echonest.com/" target="_top">Echo Nest</a>
    271. 

  271. <a class="rst-reference external" href="http://developer.echonest.com/track.html#upload" target="_top">Analyze API</a>.  Otherwise, the argument is assumed to be
    272. 

  272. the track ID.</p>
    273. 

  273.   <dl class="fields">
    274. 

  274.     <dt>Parameters:</dt>
    275. 

  275.     <dd><ul class="nomargin-top">
    276. 

  276.         <li><strong class="pname"><code>path_or_identifier</code></strong> - A string representing either a path to a local
    277. 

  277. file, or the ID of a file that has already
    278. 

  278. been uploaded for analysis.</li>
    279. 

  279.     </ul></dd>
    280. 

  280.     <dt>Overrides:
    281. 

  281.         object.__init__
    282. 

  282.     </dt>
    283. 

  283.   </dl>
    284. 

  284. </td></tr></table>
    285. 

  285. </div>
    286. 

  286. <br />
    287. 

  287. <!-- ==================== PROPERTY DETAILS ==================== -->
    288. 

  288. <a name="section-PropertyDetails"></a>
    289. 

  289. <table class="details" border="1" cellpadding="3"
    290. 

  290.        cellspacing="0" width="100%" bgcolor="white">
    291. 

  291. <tr bgcolor="#70b0f0" class="table-header">
    292. 

  292.   <td colspan="2" class="table-header">
    293. 

  293.     <table border="0" cellpadding="0" cellspacing="0" width="100%">
    294. 

  294.       <tr valign="top">
    295. 

  295.         <td align="left"><span class="table-header">Property Details</span></td>
    296. 

  296.         <td align="right" valign="top"
    297. 

  297.          ><span class="options">[<a href="#section-PropertyDetails"
    298. 

  298.          class="privatelink" onclick="toggle_private();"
    299. 

  299.          >hide private</a>]</span></td>
    300. 

  300.       </tr>
    301. 

  301.     </table>
    302. 

  302.   </td>
    303. 

  303. </tr>
    304. 

  304. </table>
    305. 

  305. <a name="bars"></a>
    306. 

  306. <div>
    307. 

  307. <table class="details" border="1" cellpadding="3"
    308. 

  308.        cellspacing="0" width="100%" bgcolor="white">
    309. 

  309. <tr><td>
    310. 

  310.   <h3 class="epydoc">bars</h3>
    311. 

  311.   
    312. 

  312.   <dl class="fields">
    313. 

  313.     <dt>Get Method:</dt>
    314. 

  314.     <dd class="value"><span class="summary-sig"><i>unreachable</i>.bars(<span class="summary-sig-arg">self</span>)</span>
    315. 

  315.     </dd>
    316. 

  316.   </dl>
    317. 

  317. </td></tr></table>
    318. 

  318. </div>
    319. 

  319. <a name="beats"></a>
    320. 

  320. <div>
    321. 

  321. <table class="details" border="1" cellpadding="3"
    322. 

  322.        cellspacing="0" width="100%" bgcolor="white">
    323. 

  323. <tr><td>
    324. 

  324.   <h3 class="epydoc">beats</h3>
    325. 

  325.   
    326. 

  326.   <dl class="fields">
    327. 

  327.     <dt>Get Method:</dt>
    328. 

  328.     <dd class="value"><span class="summary-sig"><i>unreachable</i>.beats(<span class="summary-sig-arg">self</span>)</span>
    329. 

  329.     </dd>
    330. 

  330.   </dl>
    331. 

  331. </td></tr></table>
    332. 

  332. </div>
    333. 

  333. <a name="tatums"></a>
    334. 

  334. <div>
    335. 

  335. <table class="details" border="1" cellpadding="3"
    336. 

  336.        cellspacing="0" width="100%" bgcolor="white">
    337. 

  337. <tr><td>
    338. 

  338.   <h3 class="epydoc">tatums</h3>
    339. 

  339.   
    340. 

  340.   <dl class="fields">
    341. 

  341.     <dt>Get Method:</dt>
    342. 

  342.     <dd class="value"><span class="summary-sig"><i>unreachable</i>.tatums(<span class="summary-sig-arg">self</span>)</span>
    343. 

  343.     </dd>
    344. 

  344.   </dl>
    345. 

  345. </td></tr></table>
    346. 

  346. </div>
    347. 

  347. <a name="sections"></a>
    348. 

  348. <div>
    349. 

  349. <table class="details" border="1" cellpadding="3"
    350. 

  350.        cellspacing="0" width="100%" bgcolor="white">
    351. 

  351. <tr><td>
    352. 

  352.   <h3 class="epydoc">sections</h3>
    353. 

  353.   
    354. 

  354.   <dl class="fields">
    355. 

  355.     <dt>Get Method:</dt>
    356. 

  356.     <dd class="value"><span class="summary-sig"><i>unreachable</i>.sections(<span class="summary-sig-arg">self</span>)</span>
    357. 

  357.     </dd>
    358. 

  358.   </dl>
    359. 

  359. </td></tr></table>
    360. 

  360. </div>
    361. 

  361. <a name="segments"></a>
    362. 

  362. <div>
    363. 

  363. <table class="details" border="1" cellpadding="3"
    364. 

  364.        cellspacing="0" width="100%" bgcolor="white">
    365. 

  365. <tr><td>
    366. 

  366.   <h3 class="epydoc">segments</h3>
    367. 

  367.   
    368. 

  368.   <dl class="fields">
    369. 

  369.     <dt>Get Method:</dt>
    370. 

  370.     <dd class="value"><span class="summary-sig"><i>unreachable</i>.segments(<span class="summary-sig-arg">self</span>)</span>
    371. 

  371.     </dd>
    372. 

  372.   </dl>
    373. 

  373. </td></tr></table>
    374. 

  374. </div>
    375. 

  375. <br />
    376. 

  376. <!-- ==================== NAVIGATION BAR ==================== -->
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