Table Envelope Velocity Attack Modulation Bug

[d.healey]

I've discovered a bug with the table envelope when using a velocity attack modulator, it only seems to happen with a low attack time (upto about 25ms). It's probably best to just try the example I'm posting to see the results. Basically if you play a velocity above 64 you get silence.

<?xml version="1.0" encoding="UTF-8"?>

<Processor Type="SynthChain" ID="Master Chain" Bypassed="0" Gain="1" Balance="0"
           VoiceLimit="64" KillFadeTime="20" IconColour="0" packageName=""
           views="32.rk1bzA..........................PFQfDKe...." currentView="-1">
  <EditorStates BodyShown="0" Visible="1" Solo="0" Folded="0" InterfaceShown="0"/>
  <ChildProcessors>
    <Processor Type="MidiProcessorChain" ID="Midi Processor" Bypassed="0">
      <EditorStates BodyShown="1" Visible="0" Solo="0" Folded="1"/>
      <ChildProcessors/>
    </Processor>
    <Processor Type="ModulatorChain" ID="GainModulation" Bypassed="0" Intensity="1">
      <EditorStates BodyShown="1" Visible="0" Solo="0" Folded="1"/>
      <ChildProcessors/>
    </Processor>
    <Processor Type="ModulatorChain" ID="PitchModulation" Bypassed="1" Intensity="0">
      <EditorStates BodyShown="1" Visible="0" Solo="0" Folded="1"/>
      <ChildProcessors/>
    </Processor>
    <Processor Type="EffectChain" ID="FX" Bypassed="0">
      <EditorStates BodyShown="1" Visible="0" Solo="0" Folded="1"/>
      <ChildProcessors/>
    </Processor>
    <Processor Type="SineSynth" ID="Sine Wave Generator" Bypassed="0" Gain="0.25"
               Balance="0" VoiceLimit="128" KillFadeTime="20" IconColour="0"
               OctaveTranspose="0" SemiTones="0" UseFreqRatio="0" CoarseFreqRatio="1"
               FineFreqRatio="0" SaturationAmount="0">
      <EditorStates BodyShown="1" Visible="1" Solo="0" GainModulationShown="1"/>
      <ChildProcessors>
        <Processor Type="MidiProcessorChain" ID="Midi Processor" Bypassed="0">
          <EditorStates BodyShown="1" Visible="0" Solo="0" Folded="1"/>
          <ChildProcessors/>
        </Processor>
        <Processor Type="ModulatorChain" ID="GainModulation" Bypassed="0" Intensity="1">
          <EditorStates BodyShown="1" Visible="1" Solo="0" Folded="0"/>
          <ChildProcessors>
            <Processor Type="TableEnvelope" ID="Table Envelope" Bypassed="0" Intensity="1"
                       Attack="1" Release="530.09998" AttackTableData="24...............vO...f+....9C...yO"
                       ReleaseTableData="24..........9C...vO...f+.........3O">
              <EditorStates BodyShown="1" Visible="1" Solo="0"/>
              <ChildProcessors>
                <Processor Type="ModulatorChain" ID="AttackTime Modulation" Bypassed="0"
                           Intensity="1">
                  <EditorStates BodyShown="1" Visible="1" Solo="0" Folded="0"/>
                  <ChildProcessors>
                    <Processor Type="Velocity" ID="Velocity Modulator" Bypassed="0" Intensity="1"
                               UseTable="1" Inverted="0" DecibelMode="0" VelocityTableData="36......LyLy8C...vOPHY.+.........vO...f+.........vO">
                      <EditorStates BodyShown="1" Visible="1" Solo="0"/>
                      <ChildProcessors/>
                    </Processor>
                  </ChildProcessors>
                </Processor>
                <Processor Type="ModulatorChain" ID="ReleaseTime Modulation" Bypassed="0"
                           Intensity="1">
                  <EditorStates BodyShown="1" Visible="0" Solo="0" Folded="1"/>
                  <ChildProcessors/>
                </Processor>
              </ChildProcessors>
            </Processor>
          </ChildProcessors>
        </Processor>
        <Processor Type="ModulatorChain" ID="PitchModulation" Bypassed="0" Intensity="0">
          <EditorStates BodyShown="1" Visible="0" Solo="0" Folded="1"/>
          <ChildProcessors/>
        </Processor>
        <Processor Type="EffectChain" ID="FX" Bypassed="0">
          <EditorStates BodyShown="1" Visible="0" Solo="0" Folded="1"/>
          <ChildProcessors/>
        </Processor>
      </ChildProcessors>
      <RoutingMatrix NumSourceChannels="2" Channel0="0" Send0="-1" Channel1="1" Send1="-1"/>
    </Processor>
  </ChildProcessors>
  <RoutingMatrix NumSourceChannels="2" Channel0="0" Send0="-1" Channel1="1" Send1="-1"/>
  <macro_controls>
    <macro name="Macro 1" value="0" midi_cc="-1"/>
    <macro name="Macro 2" value="0" midi_cc="-1"/>
    <macro name="Macro 3" value="0" midi_cc="-1"/>
    <macro name="Macro 4" value="0" midi_cc="-1"/>
    <macro name="Macro 5" value="0" midi_cc="-1"/>
    <macro name="Macro 6" value="0" midi_cc="-1"/>
    <macro name="Macro 7" value="0" midi_cc="-1"/>
    <macro name="Macro 8" value="0" midi_cc="-1"/>
  </macro_controls>
  <MidiAutomation/>
</Processor>

[Christoph Hart]

Ah yes, when the attack time is too short, it just takes the initial value as interpolated value. This is the reason why 1.0ms is the lowest possible value, but I forgot that you can get lower by multiplying it with a zero modulation value :)

I'll fix this.

[d.healey]

Bump Bump :D

[Christoph Hart]

Yeah sorry I'll try to fix it ASAP.

[Christoph Hart]

There you go:

- fixed http://forum.hise.audio/topic/200/table-envelope-velocity-att… · christophhart/HISE@f5fbc12

The open source framework for sample based instruments - - fixed http://forum.hise.audio/topic/200/table-envelope-velocity-att… · christophhart/HISE@f5fbc12

GitHub (github.com)

[d.healey]

Thank you :)