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Reverberator Equalizer EQ Vibrato Tremolo Echo Tom Szilagyi LADSPA
JACK Plugin Linux Audio">
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<font size="+2" color=#004060><b>TAP</b>-plugins</font><br>
<font color=#004060>Tom's Audio Processing plugins</font><br>
<font size="-1" color=#004060><i>for audio engineering on the Linux
platform</i></font>
</td><td>
<center>
<a href="../index.html">[ Home ]</a>
<a href="../ladspa.html">[ LADSPA plugins ]</a>
<a href="../reverbed.html">[ TAP Reverb Editor ]</a>
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<a href="releases.html">[ Releases ]</a>
<a href="general.html">[ General Info ]</a>
<a href="manuals.html">[ Plugin Manuals ]</a>
</center>
</td></tr>
</table>
<blockquote>
<a href="autopan.html">[ TAP AutoPanner ]</a>
<a href="chorusflanger.html">[ TAP Chorus/Flanger ]</a>
<a href="deesser.html">[ TAP DeEsser ]</a>
<a href="dynamics.html">[ TAP Dynamics (Mono & Stereo) ]</a>
<a href="eq.html">[ TAP Equalizer and TAP Equalizer/BW ]</a>
<a href="doubler.html">[ TAP Fractal Doubler ]</a>
<a href="pinknoise.html">[ TAP Pink/Fractal Noise ]</a>
<a href="pitch.html">[ TAP Pitch Shifter ]</a>
<a href="reflector.html">[ TAP Reflector ]</a>
<a href="reverb.html">[ TAP Reverberator ]</a>
<a href="rotspeak.html">[ TAP Rotary Speaker ]</a>
<a href="limiter.html">[ TAP Scaling Limiter ]</a>
<a href="sigmoid.html">[ TAP Sigmoid Booster ]</a>
<a href="echo.html">[ TAP Stereo Echo ]</a>
<a href="tremolo.html">[ TAP Tremolo ]</a>
<a href="tubewarmth.html">[ TAP TubeWarmth ]</a>
<a href="vibrato.html">[ TAP Vibrato ]</a>
</blockquote>
<h2>TAP Vibrato</h2>
<img src="tap_vibrato.png" alt="[TAP Vibrato GUI as shown in Ardour]">
<p>
This plugin modulates the pitch of its input signal with a
low-frequency sinusoidal signal. It is useful for guitar and synth
tracks, and it can also come handy if a strange effect is needed.
</p>
<h3>General information</h3>
<table cellspacing="0" cellpadding="5" border="1">
<tr><th align="left">Unique ID</th><td>2148</td>
<tr><th align="left">I/O ports</th><td>1 input / 1 output</td>
<tr><th align="left">CPU usage (44.1 kHz)</th><td>4.1%</td>
<tr><th align="left">CPU usage (96 kHz)</th><td>8.8%</td>
<tr><th align="left">Hard RT Capable</th><td>Yes</td></tr>
<tr><th align="left">In-place operation</th><td>Supported</td>
<tr><th align="left">run_adding() function</th><td>Provided</td>
</table>
<h3>Usage tips</h3>
<p>
The "Frequency" control determines how fast the pitch is modulated
up-down. Set the amount of pitch modulation via the "Depth" control.
When trying to enhance synth or guitar tracks, use the "Depth" control
sparingly: if you set it too high, you can easily get the sound of an
old tape deck with a worn-out tape -- of course, that may be just what
you want... With an even higher setting, you can get the feel of a
strongly pulled-about vibrato bar of an electric guitar. Hint: create
vibrato simulations with the power of Ardour automation editing.
</p>
<p>
At small depth settings (between 0.5% and 1.5%) and a frequency
setting between 5 and 15 Hz, mixing the pitch-modulated signal with
the original sound yields a chorus-like effect. The "Dry Level" and
"Wet Level" controls exist to support this kind of setup. By default,
the dry signal is muted, and the wet signal is output with 0 dB, so
you won't need to touch these contols if you don't want to create such
a mix.
</p>
<h3>Summary of user controls</h3>
<table cellspacing="0" cellpadding="5" border="1">
<tr><th>name</th><th>min. value</th><th>default value</th><th>max. value</th></tr>
<tr align="center"><td>Frequency [Hz]</td>
<td>0</td>
<td>0</td>
<td>30</td></tr>
<tr align="center"><td>Depth [%]</td>
<td>0</td>
<td>0</td>
<td>20</td></tr>
<tr align="center"><td>Dry Level [dB]</td>
<td>-90</td>
<td>-90</td>
<td>20</td></tr>
<tr align="center"><td>Wet Level [dB]</td>
<td>-90</td>
<td>0</td>
<td>20</td></tr>
<tr align="center"><td>latency</td>
<td colspan="3">latency time is 32 ms,<br>
value depends on sample rate
</td></tr>
</table>
<h3>Notes</h3>
<p>
Resampling is done using linear interpolation. Higher orders would
probably yield somewhat better quality (at least in theory), but since
no side-effects were heard (apart from the fact that this plugin is a
side-effect in itself), that was considered to be a waste of CPU.
</p>
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