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43 lines
2.0 KiB
43 lines
2.0 KiB
3 years ago
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<script type="text/x-red" data-help-name="AudioEffectMidSide">
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<h3>Summary</h3>
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<div class=tooltipinfo>
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<p>Convert stereo signals to/from Mid-Side format.
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Mid-Side encoding can be used to increase stereo width, make the lower
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frequencies mono (to please your sub), or as the basis of audio compression.</p>
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</div>
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<h3>Audio Connections</h3>
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<table class=doc align=center cellpadding=3>
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<tr class=top><th>Port</th><th>While<br>Encoding</th><th>While<br>Decoding</th></tr>
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<tr class=odd><td align=center>In 0</td><td>Left Input</td><td>Mid Output</td></tr>
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<tr class=odd><td align=center>In 1</td><td>Right Input</td><td>Side Output</td></tr>
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<tr class=odd><td align=center>Out 0</td><td>Mid Input</td><td>Left Output</td></tr>
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<tr class=odd><td align=center>Out 1</td><td>Side Input</td><td>Right Output</td></tr>
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</table>
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<h3>Functions</h3>
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<p class=func><span class=keyword>encode</span>();</p>
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<p class=desc>Configure this object to encode from stereo to Mid-Side format.</p>
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<p class=func><span class=keyword>decode</span>();</p>
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<p class=desc>Configure this object to decode from Mid-Side format back to stereo signals.</p>
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<h3>Examples</h3>
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<p class=exam>File > Examples > Audio > Effects > Mid_Side</p>
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<h3>Notes</h3>
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<p>Many interesting stereo effects can be achieved by manipulating Mid-Side signals.</p>
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<p>Normally a pair of these objects are used, one to encode, then additional
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gain/attenuation or effects applied to the Mid-Side signals, and finally
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decoding back to stereo signals</p>
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<p>To prevent saturation, halving is done in the encoding, that is:</p>
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<p>Mid = (left+right)/2</p>
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<p>Side = (left-right)/2</p>
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<p>And to decode:</p>
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<p>Left = Mid+Side</p>
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<p>Right = Mid-Side</p>
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</script>
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<script type="text/x-red" data-template-name="AudioEffectMidSide">
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<div class="form-row">
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<label for="node-input-name"><i class="fa fa-tag"></i> Name</label>
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<input type="text" id="node-input-name" placeholder="Name">
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</div>
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</script>
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