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Added a function to allow updates to the hop and frame size of the beat tracker
author Adam <adamstark.uk@gmail.com>
date Tue, 28 Jan 2014 00:31:17 +0000
parents deb49a2590f3
children 687b8dd41934
rev   line source
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adamstark@23 6 <title>BTrack - A Real-Time Beat Tracker: BTrack Class Reference</title>
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adamstark@23 24 <div id="projectname">BTrack - A Real-Time Beat Tracker
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adamstark@23 85 <a href="class_b_track-members.html">List of all members</a> </div>
adamstark@23 86 <div class="headertitle">
adamstark@23 87 <div class="title">BTrack Class Reference</div> </div>
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adamstark@23 90
adamstark@23 91 <p><code>#include &lt;<a class="el" href="_b_track_8h_source.html">BTrack.h</a>&gt;</code></p>
adamstark@23 92 <table class="memberdecls">
adamstark@23 93 <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
adamstark@23 94 Public Member Functions</h2></td></tr>
adamstark@23 95 <tr class="memitem:a243ac408666ce0301fecd9b0a2a6f307"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_b_track.html#a243ac408666ce0301fecd9b0a2a6f307">BTrack</a> ()</td></tr>
adamstark@23 96 <tr class="separator:a243ac408666ce0301fecd9b0a2a6f307"><td class="memSeparator" colspan="2">&#160;</td></tr>
adamstark@23 97 <tr class="memitem:ac4dbda7c90ce1a3080def2d5da875171"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_b_track.html#ac4dbda7c90ce1a3080def2d5da875171">BTrack</a> (int hopSize_)</td></tr>
adamstark@23 98 <tr class="separator:ac4dbda7c90ce1a3080def2d5da875171"><td class="memSeparator" colspan="2">&#160;</td></tr>
adamstark@23 99 <tr class="memitem:afce9e207a2f6ff71d96125dee16797de"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_b_track.html#afce9e207a2f6ff71d96125dee16797de">BTrack</a> (int hopSize_, int frameSize_)</td></tr>
adamstark@23 100 <tr class="separator:afce9e207a2f6ff71d96125dee16797de"><td class="memSeparator" colspan="2">&#160;</td></tr>
adamstark@28 101 <tr class="memitem:a70244e9a5aa8f860533fa56f942b7ede"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_b_track.html#a70244e9a5aa8f860533fa56f942b7ede">updateHopAndFrameSize</a> (int hopSize_, int frameSize_)</td></tr>
adamstark@28 102 <tr class="separator:a70244e9a5aa8f860533fa56f942b7ede"><td class="memSeparator" colspan="2">&#160;</td></tr>
adamstark@23 103 <tr class="memitem:abb7ce7253095e6f859ef7b30f06ce051"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_b_track.html#abb7ce7253095e6f859ef7b30f06ce051">processAudioFrame</a> (double *frame)</td></tr>
adamstark@23 104 <tr class="separator:abb7ce7253095e6f859ef7b30f06ce051"><td class="memSeparator" colspan="2">&#160;</td></tr>
adamstark@23 105 <tr class="memitem:a6fab18732bef8c87152e93dec9e4f854"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_b_track.html#a6fab18732bef8c87152e93dec9e4f854">processOnsetDetectionFunctionSample</a> (double sample)</td></tr>
adamstark@23 106 <tr class="separator:a6fab18732bef8c87152e93dec9e4f854"><td class="memSeparator" colspan="2">&#160;</td></tr>
adamstark@23 107 <tr class="memitem:ac06aa079977062bfa2930cdca45e69fb"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_b_track.html#ac06aa079977062bfa2930cdca45e69fb">getHopSize</a> ()</td></tr>
adamstark@23 108 <tr class="separator:ac06aa079977062bfa2930cdca45e69fb"><td class="memSeparator" colspan="2">&#160;</td></tr>
adamstark@23 109 <tr class="memitem:ac92eaea0e42dd18c79de10bf852d7f4a"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_b_track.html#ac92eaea0e42dd18c79de10bf852d7f4a">beatDueInCurrentFrame</a> ()</td></tr>
adamstark@23 110 <tr class="separator:ac92eaea0e42dd18c79de10bf852d7f4a"><td class="memSeparator" colspan="2">&#160;</td></tr>
adamstark@23 111 <tr class="memitem:a17cea0a4dff3908660e4117e9a6c42bb"><td class="memItemLeft" align="right" valign="top">double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_b_track.html#a17cea0a4dff3908660e4117e9a6c42bb">getCurrentTempoEstimate</a> ()</td></tr>
adamstark@23 112 <tr class="separator:a17cea0a4dff3908660e4117e9a6c42bb"><td class="memSeparator" colspan="2">&#160;</td></tr>
adamstark@23 113 <tr class="memitem:a7ccb5059d0f00e3217ea686e4c1e156d"><td class="memItemLeft" align="right" valign="top">double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_b_track.html#a7ccb5059d0f00e3217ea686e4c1e156d">getLatestCumulativeScoreValue</a> ()</td></tr>
adamstark@23 114 <tr class="separator:a7ccb5059d0f00e3217ea686e4c1e156d"><td class="memSeparator" colspan="2">&#160;</td></tr>
adamstark@23 115 <tr class="memitem:a96cf4088e40dff66ce15ada1f671a186"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_b_track.html#a96cf4088e40dff66ce15ada1f671a186">setTempo</a> (double tempo)</td></tr>
adamstark@23 116 <tr class="separator:a96cf4088e40dff66ce15ada1f671a186"><td class="memSeparator" colspan="2">&#160;</td></tr>
adamstark@23 117 <tr class="memitem:a550829be9b4c58cd53195ec4900c7c71"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_b_track.html#a550829be9b4c58cd53195ec4900c7c71">fixTempo</a> (double tempo)</td></tr>
adamstark@23 118 <tr class="separator:a550829be9b4c58cd53195ec4900c7c71"><td class="memSeparator" colspan="2">&#160;</td></tr>
adamstark@23 119 <tr class="memitem:a22917ea231d2efd5670a764dd5a98983"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_b_track.html#a22917ea231d2efd5670a764dd5a98983">doNotFixTempo</a> ()</td></tr>
adamstark@23 120 <tr class="separator:a22917ea231d2efd5670a764dd5a98983"><td class="memSeparator" colspan="2">&#160;</td></tr>
adamstark@23 121 </table><table class="memberdecls">
adamstark@23 122 <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-static-methods"></a>
adamstark@23 123 Static Public Member Functions</h2></td></tr>
adamstark@23 124 <tr class="memitem:aa66d0b9dfb4408e8cf84398f03b60a56"><td class="memItemLeft" align="right" valign="top">static double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_b_track.html#aa66d0b9dfb4408e8cf84398f03b60a56">getBeatTimeInSeconds</a> (long frameNumber, int hopSize, int fs)</td></tr>
adamstark@23 125 <tr class="separator:aa66d0b9dfb4408e8cf84398f03b60a56"><td class="memSeparator" colspan="2">&#160;</td></tr>
adamstark@23 126 <tr class="memitem:a1ebb4312fed8cf1de5353fef68c0fe74"><td class="memItemLeft" align="right" valign="top">static double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_b_track.html#a1ebb4312fed8cf1de5353fef68c0fe74">getBeatTimeInSeconds</a> (int frameNumber, int hopSize, int fs)</td></tr>
adamstark@23 127 <tr class="separator:a1ebb4312fed8cf1de5353fef68c0fe74"><td class="memSeparator" colspan="2">&#160;</td></tr>
adamstark@23 128 </table>
adamstark@23 129 <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
adamstark@23 130 <div class="textblock"><p>The main beat tracking class and the interface to the <a class="el" href="class_b_track.html">BTrack</a> beat tracking algorithm. The algorithm can process either audio frames or onset detection function samples and also contains some static functions for calculating beat times in seconds </p>
adamstark@23 131 </div><h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
adamstark@23 132 <a class="anchor" id="a243ac408666ce0301fecd9b0a2a6f307"></a>
adamstark@23 133 <div class="memitem">
adamstark@23 134 <div class="memproto">
adamstark@23 135 <table class="memname">
adamstark@23 136 <tr>
adamstark@23 137 <td class="memname">BTrack::BTrack </td>
adamstark@23 138 <td>(</td>
adamstark@23 139 <td class="paramname"></td><td>)</td>
adamstark@23 140 <td></td>
adamstark@23 141 </tr>
adamstark@23 142 </table>
adamstark@23 143 </div><div class="memdoc">
adamstark@28 144 <p>Constructor assuming hop size of 512 and frame size of 1024 </p>
adamstark@23 145
adamstark@23 146 </div>
adamstark@23 147 </div>
adamstark@23 148 <a class="anchor" id="ac4dbda7c90ce1a3080def2d5da875171"></a>
adamstark@23 149 <div class="memitem">
adamstark@23 150 <div class="memproto">
adamstark@23 151 <table class="memname">
adamstark@23 152 <tr>
adamstark@23 153 <td class="memname">BTrack::BTrack </td>
adamstark@23 154 <td>(</td>
adamstark@23 155 <td class="paramtype">int&#160;</td>
adamstark@23 156 <td class="paramname"><em>hopSize_</em></td><td>)</td>
adamstark@23 157 <td></td>
adamstark@23 158 </tr>
adamstark@23 159 </table>
adamstark@23 160 </div><div class="memdoc">
adamstark@28 161 <p>Constructor assuming frame size will be double the hopSize </p>
adamstark@23 162 <dl class="params"><dt>Parameters</dt><dd>
adamstark@23 163 <table class="params">
adamstark@23 164 <tr><td class="paramname">hopSize</td><td>the hop size in audio samples </td></tr>
adamstark@23 165 </table>
adamstark@23 166 </dd>
adamstark@23 167 </dl>
adamstark@23 168
adamstark@23 169 </div>
adamstark@23 170 </div>
adamstark@23 171 <a class="anchor" id="afce9e207a2f6ff71d96125dee16797de"></a>
adamstark@23 172 <div class="memitem">
adamstark@23 173 <div class="memproto">
adamstark@23 174 <table class="memname">
adamstark@23 175 <tr>
adamstark@23 176 <td class="memname">BTrack::BTrack </td>
adamstark@23 177 <td>(</td>
adamstark@23 178 <td class="paramtype">int&#160;</td>
adamstark@23 179 <td class="paramname"><em>hopSize_</em>, </td>
adamstark@23 180 </tr>
adamstark@23 181 <tr>
adamstark@23 182 <td class="paramkey"></td>
adamstark@23 183 <td></td>
adamstark@23 184 <td class="paramtype">int&#160;</td>
adamstark@23 185 <td class="paramname"><em>frameSize_</em>&#160;</td>
adamstark@23 186 </tr>
adamstark@23 187 <tr>
adamstark@23 188 <td></td>
adamstark@23 189 <td>)</td>
adamstark@23 190 <td></td><td></td>
adamstark@23 191 </tr>
adamstark@23 192 </table>
adamstark@23 193 </div><div class="memdoc">
adamstark@28 194 <p>Constructor taking both hopSize and frameSize </p>
adamstark@23 195 <dl class="params"><dt>Parameters</dt><dd>
adamstark@23 196 <table class="params">
adamstark@23 197 <tr><td class="paramname">hopSize</td><td>the hop size in audio samples </td></tr>
adamstark@23 198 <tr><td class="paramname">frameSize</td><td>the frame size in audio samples </td></tr>
adamstark@23 199 </table>
adamstark@23 200 </dd>
adamstark@23 201 </dl>
adamstark@23 202
adamstark@23 203 </div>
adamstark@23 204 </div>
adamstark@23 205 <h2 class="groupheader">Member Function Documentation</h2>
adamstark@23 206 <a class="anchor" id="ac92eaea0e42dd18c79de10bf852d7f4a"></a>
adamstark@23 207 <div class="memitem">
adamstark@23 208 <div class="memproto">
adamstark@23 209 <table class="memname">
adamstark@23 210 <tr>
adamstark@23 211 <td class="memname">bool BTrack::beatDueInCurrentFrame </td>
adamstark@23 212 <td>(</td>
adamstark@23 213 <td class="paramname"></td><td>)</td>
adamstark@23 214 <td></td>
adamstark@23 215 </tr>
adamstark@23 216 </table>
adamstark@23 217 </div><div class="memdoc">
adamstark@23 218 <dl class="section return"><dt>Returns</dt><dd>true if a beat should occur in the current audio frame </dd></dl>
adamstark@23 219
adamstark@23 220 </div>
adamstark@23 221 </div>
adamstark@23 222 <a class="anchor" id="a22917ea231d2efd5670a764dd5a98983"></a>
adamstark@23 223 <div class="memitem">
adamstark@23 224 <div class="memproto">
adamstark@23 225 <table class="memname">
adamstark@23 226 <tr>
adamstark@23 227 <td class="memname">void BTrack::doNotFixTempo </td>
adamstark@23 228 <td>(</td>
adamstark@23 229 <td class="paramname"></td><td>)</td>
adamstark@23 230 <td></td>
adamstark@23 231 </tr>
adamstark@23 232 </table>
adamstark@23 233 </div><div class="memdoc">
adamstark@28 234 <p>Tell the algorithm to not fix the tempo anymore </p>
adamstark@23 235
adamstark@23 236 </div>
adamstark@23 237 </div>
adamstark@23 238 <a class="anchor" id="a550829be9b4c58cd53195ec4900c7c71"></a>
adamstark@23 239 <div class="memitem">
adamstark@23 240 <div class="memproto">
adamstark@23 241 <table class="memname">
adamstark@23 242 <tr>
adamstark@23 243 <td class="memname">void BTrack::fixTempo </td>
adamstark@23 244 <td>(</td>
adamstark@23 245 <td class="paramtype">double&#160;</td>
adamstark@23 246 <td class="paramname"><em>tempo</em></td><td>)</td>
adamstark@23 247 <td></td>
adamstark@23 248 </tr>
adamstark@23 249 </table>
adamstark@23 250 </div><div class="memdoc">
adamstark@28 251 <p>Fix tempo to roughly around some value, so that the algorithm will only try to track tempi around the given tempo </p>
adamstark@23 252 <dl class="params"><dt>Parameters</dt><dd>
adamstark@23 253 <table class="params">
adamstark@23 254 <tr><td class="paramname">tempo</td><td>the tempo in beats per minute (bpm) </td></tr>
adamstark@23 255 </table>
adamstark@23 256 </dd>
adamstark@23 257 </dl>
adamstark@23 258
adamstark@23 259 </div>
adamstark@23 260 </div>
adamstark@23 261 <a class="anchor" id="aa66d0b9dfb4408e8cf84398f03b60a56"></a>
adamstark@23 262 <div class="memitem">
adamstark@23 263 <div class="memproto">
adamstark@23 264 <table class="mlabels">
adamstark@23 265 <tr>
adamstark@23 266 <td class="mlabels-left">
adamstark@23 267 <table class="memname">
adamstark@23 268 <tr>
adamstark@23 269 <td class="memname">double BTrack::getBeatTimeInSeconds </td>
adamstark@23 270 <td>(</td>
adamstark@23 271 <td class="paramtype">long&#160;</td>
adamstark@23 272 <td class="paramname"><em>frameNumber</em>, </td>
adamstark@23 273 </tr>
adamstark@23 274 <tr>
adamstark@23 275 <td class="paramkey"></td>
adamstark@23 276 <td></td>
adamstark@23 277 <td class="paramtype">int&#160;</td>
adamstark@23 278 <td class="paramname"><em>hopSize</em>, </td>
adamstark@23 279 </tr>
adamstark@23 280 <tr>
adamstark@23 281 <td class="paramkey"></td>
adamstark@23 282 <td></td>
adamstark@23 283 <td class="paramtype">int&#160;</td>
adamstark@23 284 <td class="paramname"><em>fs</em>&#160;</td>
adamstark@23 285 </tr>
adamstark@23 286 <tr>
adamstark@23 287 <td></td>
adamstark@23 288 <td>)</td>
adamstark@23 289 <td></td><td></td>
adamstark@23 290 </tr>
adamstark@23 291 </table>
adamstark@23 292 </td>
adamstark@23 293 <td class="mlabels-right">
adamstark@23 294 <span class="mlabels"><span class="mlabel">static</span></span> </td>
adamstark@23 295 </tr>
adamstark@23 296 </table>
adamstark@23 297 </div><div class="memdoc">
adamstark@28 298 <p>Calculates a beat time in seconds, given the frame number, hop size and sampling frequency. This version uses a long to represent the frame number </p>
adamstark@23 299 <dl class="params"><dt>Parameters</dt><dd>
adamstark@23 300 <table class="params">
adamstark@23 301 <tr><td class="paramname">frameNumber</td><td>the index of the current frame </td></tr>
adamstark@23 302 <tr><td class="paramname">hopSize</td><td>the hop size in audio samples </td></tr>
adamstark@23 303 <tr><td class="paramname">fs</td><td>the sampling frequency in Hz </td></tr>
adamstark@23 304 </table>
adamstark@23 305 </dd>
adamstark@23 306 </dl>
adamstark@23 307 <dl class="section return"><dt>Returns</dt><dd>a beat time in seconds </dd></dl>
adamstark@23 308
adamstark@23 309 </div>
adamstark@23 310 </div>
adamstark@23 311 <a class="anchor" id="a1ebb4312fed8cf1de5353fef68c0fe74"></a>
adamstark@23 312 <div class="memitem">
adamstark@23 313 <div class="memproto">
adamstark@23 314 <table class="mlabels">
adamstark@23 315 <tr>
adamstark@23 316 <td class="mlabels-left">
adamstark@23 317 <table class="memname">
adamstark@23 318 <tr>
adamstark@23 319 <td class="memname">double BTrack::getBeatTimeInSeconds </td>
adamstark@23 320 <td>(</td>
adamstark@23 321 <td class="paramtype">int&#160;</td>
adamstark@23 322 <td class="paramname"><em>frameNumber</em>, </td>
adamstark@23 323 </tr>
adamstark@23 324 <tr>
adamstark@23 325 <td class="paramkey"></td>
adamstark@23 326 <td></td>
adamstark@23 327 <td class="paramtype">int&#160;</td>
adamstark@23 328 <td class="paramname"><em>hopSize</em>, </td>
adamstark@23 329 </tr>
adamstark@23 330 <tr>
adamstark@23 331 <td class="paramkey"></td>
adamstark@23 332 <td></td>
adamstark@23 333 <td class="paramtype">int&#160;</td>
adamstark@23 334 <td class="paramname"><em>fs</em>&#160;</td>
adamstark@23 335 </tr>
adamstark@23 336 <tr>
adamstark@23 337 <td></td>
adamstark@23 338 <td>)</td>
adamstark@23 339 <td></td><td></td>
adamstark@23 340 </tr>
adamstark@23 341 </table>
adamstark@23 342 </td>
adamstark@23 343 <td class="mlabels-right">
adamstark@23 344 <span class="mlabels"><span class="mlabel">static</span></span> </td>
adamstark@23 345 </tr>
adamstark@23 346 </table>
adamstark@23 347 </div><div class="memdoc">
adamstark@28 348 <p>Calculates a beat time in seconds, given the frame number, hop size and sampling frequency. This version uses an int to represent the frame number </p>
adamstark@23 349 <dl class="params"><dt>Parameters</dt><dd>
adamstark@23 350 <table class="params">
adamstark@23 351 <tr><td class="paramname">frameNumber</td><td>the index of the current frame </td></tr>
adamstark@23 352 <tr><td class="paramname">hopSize</td><td>the hop size in audio samples </td></tr>
adamstark@23 353 <tr><td class="paramname">fs</td><td>the sampling frequency in Hz </td></tr>
adamstark@23 354 </table>
adamstark@23 355 </dd>
adamstark@23 356 </dl>
adamstark@23 357 <dl class="section return"><dt>Returns</dt><dd>a beat time in seconds </dd></dl>
adamstark@23 358
adamstark@23 359 </div>
adamstark@23 360 </div>
adamstark@23 361 <a class="anchor" id="a17cea0a4dff3908660e4117e9a6c42bb"></a>
adamstark@23 362 <div class="memitem">
adamstark@23 363 <div class="memproto">
adamstark@23 364 <table class="memname">
adamstark@23 365 <tr>
adamstark@23 366 <td class="memname">double BTrack::getCurrentTempoEstimate </td>
adamstark@23 367 <td>(</td>
adamstark@23 368 <td class="paramname"></td><td>)</td>
adamstark@23 369 <td></td>
adamstark@23 370 </tr>
adamstark@23 371 </table>
adamstark@23 372 </div><div class="memdoc">
adamstark@23 373 <dl class="section return"><dt>Returns</dt><dd>the current tempo estimate being used by the beat tracker </dd></dl>
adamstark@23 374
adamstark@23 375 </div>
adamstark@23 376 </div>
adamstark@23 377 <a class="anchor" id="ac06aa079977062bfa2930cdca45e69fb"></a>
adamstark@23 378 <div class="memitem">
adamstark@23 379 <div class="memproto">
adamstark@23 380 <table class="memname">
adamstark@23 381 <tr>
adamstark@23 382 <td class="memname">int BTrack::getHopSize </td>
adamstark@23 383 <td>(</td>
adamstark@23 384 <td class="paramname"></td><td>)</td>
adamstark@23 385 <td></td>
adamstark@23 386 </tr>
adamstark@23 387 </table>
adamstark@23 388 </div><div class="memdoc">
adamstark@23 389 <dl class="section return"><dt>Returns</dt><dd>the current hop size being used by the beat tracker </dd></dl>
adamstark@23 390
adamstark@23 391 </div>
adamstark@23 392 </div>
adamstark@23 393 <a class="anchor" id="a7ccb5059d0f00e3217ea686e4c1e156d"></a>
adamstark@23 394 <div class="memitem">
adamstark@23 395 <div class="memproto">
adamstark@23 396 <table class="memname">
adamstark@23 397 <tr>
adamstark@23 398 <td class="memname">double BTrack::getLatestCumulativeScoreValue </td>
adamstark@23 399 <td>(</td>
adamstark@23 400 <td class="paramname"></td><td>)</td>
adamstark@23 401 <td></td>
adamstark@23 402 </tr>
adamstark@23 403 </table>
adamstark@23 404 </div><div class="memdoc">
adamstark@23 405 <dl class="section return"><dt>Returns</dt><dd>the most recent value of the cumulative score function </dd></dl>
adamstark@23 406
adamstark@23 407 </div>
adamstark@23 408 </div>
adamstark@23 409 <a class="anchor" id="abb7ce7253095e6f859ef7b30f06ce051"></a>
adamstark@23 410 <div class="memitem">
adamstark@23 411 <div class="memproto">
adamstark@23 412 <table class="memname">
adamstark@23 413 <tr>
adamstark@23 414 <td class="memname">void BTrack::processAudioFrame </td>
adamstark@23 415 <td>(</td>
adamstark@23 416 <td class="paramtype">double *&#160;</td>
adamstark@23 417 <td class="paramname"><em>frame</em></td><td>)</td>
adamstark@23 418 <td></td>
adamstark@23 419 </tr>
adamstark@23 420 </table>
adamstark@23 421 </div><div class="memdoc">
adamstark@23 422 <p>Process a single audio frame </p>
adamstark@23 423 <dl class="params"><dt>Parameters</dt><dd>
adamstark@23 424 <table class="params">
adamstark@23 425 <tr><td class="paramname">frame</td><td>a pointer to an array containing an audio frame. The number of samples should match the frame size that the algorithm was initialised with. </td></tr>
adamstark@23 426 </table>
adamstark@23 427 </dd>
adamstark@23 428 </dl>
adamstark@23 429
adamstark@23 430 </div>
adamstark@23 431 </div>
adamstark@23 432 <a class="anchor" id="a6fab18732bef8c87152e93dec9e4f854"></a>
adamstark@23 433 <div class="memitem">
adamstark@23 434 <div class="memproto">
adamstark@23 435 <table class="memname">
adamstark@23 436 <tr>
adamstark@23 437 <td class="memname">void BTrack::processOnsetDetectionFunctionSample </td>
adamstark@23 438 <td>(</td>
adamstark@23 439 <td class="paramtype">double&#160;</td>
adamstark@23 440 <td class="paramname"><em>sample</em></td><td>)</td>
adamstark@23 441 <td></td>
adamstark@23 442 </tr>
adamstark@23 443 </table>
adamstark@23 444 </div><div class="memdoc">
adamstark@23 445 <p>Add new onset detection function sample to buffer and apply beat tracking </p>
adamstark@23 446 <dl class="params"><dt>Parameters</dt><dd>
adamstark@23 447 <table class="params">
adamstark@23 448 <tr><td class="paramname">sample</td><td>an onset detection function sample </td></tr>
adamstark@23 449 </table>
adamstark@23 450 </dd>
adamstark@23 451 </dl>
adamstark@23 452
adamstark@23 453 </div>
adamstark@23 454 </div>
adamstark@23 455 <a class="anchor" id="a96cf4088e40dff66ce15ada1f671a186"></a>
adamstark@23 456 <div class="memitem">
adamstark@23 457 <div class="memproto">
adamstark@23 458 <table class="memname">
adamstark@23 459 <tr>
adamstark@23 460 <td class="memname">void BTrack::setTempo </td>
adamstark@23 461 <td>(</td>
adamstark@23 462 <td class="paramtype">double&#160;</td>
adamstark@23 463 <td class="paramname"><em>tempo</em></td><td>)</td>
adamstark@23 464 <td></td>
adamstark@23 465 </tr>
adamstark@23 466 </table>
adamstark@23 467 </div><div class="memdoc">
adamstark@23 468 <p>Set the tempo of the beat tracker </p>
adamstark@23 469 <dl class="params"><dt>Parameters</dt><dd>
adamstark@23 470 <table class="params">
adamstark@23 471 <tr><td class="paramname">tempo</td><td>the tempo in beats per minute (bpm) </td></tr>
adamstark@23 472 </table>
adamstark@23 473 </dd>
adamstark@23 474 </dl>
adamstark@23 475
adamstark@23 476 </div>
adamstark@23 477 </div>
adamstark@28 478 <a class="anchor" id="a70244e9a5aa8f860533fa56f942b7ede"></a>
adamstark@28 479 <div class="memitem">
adamstark@28 480 <div class="memproto">
adamstark@28 481 <table class="memname">
adamstark@28 482 <tr>
adamstark@28 483 <td class="memname">void BTrack::updateHopAndFrameSize </td>
adamstark@28 484 <td>(</td>
adamstark@28 485 <td class="paramtype">int&#160;</td>
adamstark@28 486 <td class="paramname"><em>hopSize_</em>, </td>
adamstark@28 487 </tr>
adamstark@28 488 <tr>
adamstark@28 489 <td class="paramkey"></td>
adamstark@28 490 <td></td>
adamstark@28 491 <td class="paramtype">int&#160;</td>
adamstark@28 492 <td class="paramname"><em>frameSize_</em>&#160;</td>
adamstark@28 493 </tr>
adamstark@28 494 <tr>
adamstark@28 495 <td></td>
adamstark@28 496 <td>)</td>
adamstark@28 497 <td></td><td></td>
adamstark@28 498 </tr>
adamstark@28 499 </table>
adamstark@28 500 </div><div class="memdoc">
adamstark@28 501 <p>Updates the hop and frame size used by the beat tracker </p>
adamstark@28 502 <dl class="params"><dt>Parameters</dt><dd>
adamstark@28 503 <table class="params">
adamstark@28 504 <tr><td class="paramname">hopSize</td><td>the hop size in audio samples </td></tr>
adamstark@28 505 <tr><td class="paramname">frameSize</td><td>the frame size in audio samples </td></tr>
adamstark@28 506 </table>
adamstark@28 507 </dd>
adamstark@28 508 </dl>
adamstark@28 509
adamstark@28 510 </div>
adamstark@28 511 </div>
adamstark@23 512 <hr/>The documentation for this class was generated from the following files:<ul>
adamstark@23 513 <li>src/<a class="el" href="_b_track_8h_source.html">BTrack.h</a></li>
adamstark@23 514 <li>src/<a class="el" href="_b_track_8cpp.html">BTrack.cpp</a></li>
adamstark@23 515 </ul>
adamstark@23 516 </div><!-- contents -->
adamstark@23 517 <!-- start footer part -->
adamstark@23 518 <hr class="footer"/><address class="footer"><small>
adamstark@28 519 Generated on Tue Jan 28 2014 00:29:23 for BTrack - A Real-Time Beat Tracker by &#160;<a href="http://www.doxygen.org/index.html">
adamstark@23 520 <img class="footer" src="doxygen.png" alt="doxygen"/>
adamstark@23 521 </a> 1.8.2
adamstark@23 522 </small></address>
adamstark@23 523 </body>
adamstark@23 524 </html>