<script type="text/x-red" data-help-name="AudioPlaySdRaw"> <h3>Summary</h3> <div class=tooltipinfo> <p>Play a RAW data file, stored on a SD card. RAW format is simpler than WAV and begins playing immediately, without parsing WAV file header info.</p> </div> <h3>Audio Connections</h3> <table class=doc align=center cellpadding=3> <tr class=top><th>Port</th><th>Purpose</th></tr> <tr class=odd><td align=center>Out 0</td><td>Sound Output</td></tr> </table> <h3>Functions</h3> <p class=func><span class=keyword>play</span>(filename);</p> <p class=desc>Begin playing a RAW data file. If a file is already playing, it is stopped and this file starts playing from the beginning. </p> <p class=func><span class=keyword>stop</span>();</p> <p class=desc>Stop playing. If not playing, this function has no effect. </p> <p class=func><span class=keyword>isPlaying</span>();</p> <p class=desc>Return true (non-zero) if playing, or false (zero) when not playing. </p> <p class=func><span class=keyword>positionMillis</span>();</p> <p class=desc>While playing, return the current time offset, in milliseconds. When not playing, the return from this function is undefined. </p> <p class=func><span class=keyword>lengthMillis</span>();</p> <p class=desc>Return the total length of the current sound clip, in milliseconds. When not playing, the return from this function is undefined. </p> <h3>Examples</h3> <p class=exam>File > Examples > Audio > Recorder </p> <h3>Notes</h3> <p>The data file must be RAW 16 bit signed integers in LSB-first format. </p> <p>While playing, the audio library accesses the SD card automatically. If card access is required, you must <a href="http://www.pjrc.com/teensy/td_libs_AudioProcessorUsage.html" target="_blank">AudioNoInterrupts()</a> to prevent the library from accessing the SD card while you use it. Disabling the audio library interrupt for too long may cause audible dropouts or glitches. </p> </script> <script type="text/x-red" data-template-name="AudioPlaySdRaw"> <div class="form-row"> <label for="node-input-name"><i class="fa fa-tag"></i> Name</label> <input type="text" id="node-input-name" placeholder="Name"> </div> </script>