diff --git a/BinaryData/Tests/VoiceAh.ptldoc b/BinaryData/Tests/VoiceAh.ptldoc
index 8aab1682..53ff85f1 100644
--- a/BinaryData/Tests/VoiceAh.ptldoc
+++ b/BinaryData/Tests/VoiceAh.ptldoc
@@ -8,12 +8,12 @@
   </reader>
   <layout value="a4d7b12bca894cb083e62a63534ca46a"/>
   <timeZoom MiscModelVersion="131078" globalRange_start="0.0" globalRange_end="0.7237868480725623"
-            minimumLength="0.01160997732426304" visibleRange_start="0.6627988951970928"
-            visibleRange_end="0.7237868480725623">
+            minimumLength="0.01160997732426304" visibleRange_start="0.0"
+            visibleRange_end="0.1311384607962663">
     <grid MiscModelVersion="131078" tickReference="0.0" mainTickInterval="0"
           tickPowerBase="2.0" tickDivisionFactor="10.0"/>
   </timeZoom>
-  <transport MiscModelVersion="131078" startPlayhead="0.05035038943113477"
+  <transport MiscModelVersion="131078" startPlayhead="0.03298824634937134"
              looping="0" loopRange_start="0.0" loopRange_end="0.0" stopAtLoopEnd="0"
              autoScroll="1" gain="1.0" magnetize="0"/>
   <groups MiscModelVersion="131078" identifier="a4d7b12bca894cb083e62a63534ca46a"
@@ -27,7 +27,7 @@
     </zoom>
   </groups>
   <tracks MiscModelVersion="131078" identifier="9c0e3843c2ba4b4eb0e3c3812215b024"
-          name="Spectrogram" input="" sampleRate="44100.0" height="411"
+          name="Spectrogram" input="" sampleRate="44100.0" height="410"
           font="Nunito Sans; 14.0 Regular" lineWidth="1.0" showInGroup="1"
           sendViaOsc="0" zoomValueMode="1" zoomLogScale="0" zoomLink="1">
     <file path="" commit="">
@@ -37,521 +37,265 @@
                  category="" details="Display the spectrogram of the audio.&#10;Partiels factory plugin.">
       <defaultState blockSize="1024" stepSize="512" windowType="3"/>
       <output identifier="energies" name="Energy" description="Energy from the input signal"
-              unit="dB" hasFixedBinCount="1" binCount="513" hasKnownExtents="1"
-              minValue="-120.0" maxValue="12.0" isQuantized="0" quantizeStep="0.0"
-              sampleType="0" sampleRate="0.0" hasDuration="0">
-        <binNames value="43.0Hz"/>
-        <binNames value="86.0Hz"/>
-        <binNames value="128.9Hz"/>
-        <binNames value="171.9Hz"/>
-        <binNames value="214.9Hz"/>
-        <binNames value="257.9Hz"/>
-        <binNames value="300.9Hz"/>
-        <binNames value="343.9Hz"/>
-        <binNames value="386.8Hz"/>
-        <binNames value="429.8Hz"/>
-        <binNames value="472.8Hz"/>
-        <binNames value="515.8Hz"/>
-        <binNames value="558.8Hz"/>
-        <binNames value="601.8Hz"/>
-        <binNames value="644.7Hz"/>
-        <binNames value="687.7Hz"/>
-        <binNames value="730.7Hz"/>
-        <binNames value="773.7Hz"/>
-        <binNames value="816.7Hz"/>
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-        <binNames value="902.6Hz"/>
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-        <binNames value="21964.0Hz"/>
-        <binNames value="22007.0Hz"/>
+              unit="dB" hasFixedBinCount="1" binCount="257" hasKnownExtents="1"
+              minValue="-120.0" maxValue="12.0" isQuantized="0" quantizeStep="0.0"
+              sampleType="0" sampleRate="0.0" hasDuration="0">
+        <binNames value="85.8Hz"/>
+        <binNames value="171.6Hz"/>
+        <binNames value="257.4Hz"/>
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+        <binNames value="21964.2Hz"/>
         <binNames value="22050.0Hz"/>
       </output>
       <input identifier="" name="" description="" unit="" hasFixedBinCount="0"
@@ -560,7 +304,7 @@
              hasDuration="0"/>
     </description>
     <key identifier="partiels-vamp-plugins:partielsspectrogram" feature="energies"/>
-    <state blockSize="1024" stepSize="512" windowType="3"/>
+    <state blockSize="512" stepSize="256" windowType="3"/>
     <colours map="7" background="0" foreground="ff7e7a7d" duration="667e7a7d"
              text="0" shadow="0"/>
     <labelLayout position="12.0" justification="0"/>
@@ -571,14 +315,14 @@
       <grid MiscModelVersion="131078" tickReference="0.0" mainTickInterval="3"
             tickPowerBase="2.0" tickDivisionFactor="5.0"/>
     </valueZoom>
-    <binZoom MiscModelVersion="131078" globalRange_start="0.0" globalRange_end="513.0"
-             minimumLength="1.0" visibleRange_start="0.0" visibleRange_end="3.624249109740081">
+    <binZoom MiscModelVersion="131078" globalRange_start="0.0" globalRange_end="257.0"
+             minimumLength="1.0" visibleRange_start="0.0" visibleRange_end="1.815656961409748">
       <grid MiscModelVersion="131078" tickReference="0.0" mainTickInterval="3"
             tickPowerBase="2.0" tickDivisionFactor="5.0"/>
     </binZoom>
   </tracks>
   <tracks MiscModelVersion="131078" identifier="03cb5fd936574caebd686efde3a70f32"
-          name="Fast Fourier Transform" input="" sampleRate="48000.0" height="424"
+          name="Fast Fourier Transform" input="" sampleRate="48000.0" height="423"
           font="Nunito Sans; 14.0 Regular" lineWidth="1.0" showInGroup="1"
           sendViaOsc="0" zoomValueMode="1" zoomLogScale="0" zoomLink="1">
     <file path="" commit="">
@@ -1151,7 +895,7 @@
              hasDuration="0"/>
     </description>
     <key identifier="supervp:supervpspectrogramfft" feature="spectrogram"/>
-    <state blockSize="64" stepSize="64" windowType="3">
+    <state blockSize="64" stepSize="0" windowType="3">
       <parameters key="fftoversampling" value="0.0"/>
       <parameters key="windowoverlapping" value="1.0"/>
       <parameters key="windowsize" value="23.21995544433594"/>