<script type="text/x-red" data-help-name="AudioMixer4"> <h3>Summary</h3> <div class=tooltipinfo> <p>Combine up to 4 audio signals together, each with adjustable gain. All channels support signal attenuation or amplification.</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>In 0</td><td>Input signal #1</td></tr> <tr class=odd><td align=center>In 1</td><td>Input signal #2</td></tr> <tr class=odd><td align=center>In 2</td><td>Input signal #3</td></tr> <tr class=odd><td align=center>In 3</td><td>Input signal #4</td></tr> <tr class=odd><td align=center>Out 0</td><td>Sum of all inputs</td></tr> </table> <h3>Functions</h3> <p class=func><span class=keyword>gain</span>(channel, level);</p> <p class=desc>Adjust the amplification or attenuation. "channel" must be 0 to 3. "level" may be any floating point number from 0 to 32767. 1.0 passes the signal through directly. Level of 0 shuts the channel off completely. Between 0 to 1.0 attenuates the signal, and above 1.0 amplifies it. All 4 channels have separate settings. </p> <h3>Examples</h3> <p class=exam>File > Examples > Audio > SamplePlayer </p> <p class=exam>File > Examples > Audio > Synthesis > PlaySynthMusic </p> <p class=exam>File > Examples > Audio > Analysis > SpectrumAnalyzerBasic </p> <p class=exam>File > Examples > Audio > Analysis > DialTone_Serial </p> <p class=exam>File > Examples > Audio > MemoryAndCpuUsage </p> <h3>Notes</h3> <p>Signal clipping can occur when any channel has gain greater than 1.0, or when multiple signals add together to greater than 1.0.</p> <p>More than 4 channels may be combined by connecting multiple mixers in tandem. For example, a 16 channel mixer may be built using 5 mixers, where the fifth mixer combines the outputs of the first 4. </p> </script> <script type="text/x-red" data-template-name="AudioMixer4"> <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>