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42 lines
1.8 KiB
42 lines
1.8 KiB
8 years ago
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<script type="text/x-red" data-help-name="AudioSynthWaveformSineHires">
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<h3>Summary</h3>
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<div class=tooltipinfo>
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<p>Create a highly precise, low distortion sine wave signal.
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Mainly useful for codec & analog circuitry testing.</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>Purpose</th></tr>
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<tr class=odd><td align=center>Out 0</td><td>Sine Wave, upper bits</td></tr>
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<tr class=odd><td align=center>Out 1</td><td>Sine Wave, lower bits</td></tr>
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</table>
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<h3>Functions</h3>
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<p class=func><span class=keyword>amplitude</span>(level);</p>
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<p class=desc>Set the amplitude, from 0 to 1.0.
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</p>
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<p class=func><span class=keyword>frequency</span>(freq);</p>
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<p class=desc>Set the frequency, from 0 to 22000. Very low values may
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be used to create a LFO (Low Frequency Oscillator) for objects
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with modulation signal inputs.
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</p>
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<p class=func><span class=keyword>phase</span>(angle);</p>
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<p class=desc>
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Cause the generated waveform to jump to a specific point within
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its cycle. Angle is from 0 to 360 degrees. When multiple objects
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are configured,
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<a href="http://www.pjrc.com/teensy/td_libs_AudioProcessorUsage.html" target="_blank">AudioNoInterrupts()</a>
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should be used to guarantee all new settings take effect together.
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</p>
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<h3>Notes</h3>
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<p>An 11th order Taylor series approximation is used to generate
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a very accurate sine wave. At least the upper 25 bits are believe
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to be perfect. This is mainly intended for testing 24 bit codec chips!</p>
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</script>
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<script type="text/x-red" data-template-name="AudioSynthWaveformSine">
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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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