diff --git a/src/sfizz/ADSREnvelope.cpp b/src/sfizz/ADSREnvelope.cpp
index 873069ce..cda4ba31 100644
--- a/src/sfizz/ADSREnvelope.cpp
+++ b/src/sfizz/ADSREnvelope.cpp
@@ -38,20 +38,13 @@ Float ADSREnvelope::secondsToExpRate(Float timeInSeconds) const noexcept
     return std::exp(Float(-9.0) / (timeInSeconds * sampleRate));
 };
 
-void ADSREnvelope::reset(const EGDescription& desc, const Region& region, const MidiState& state, int delay, float velocity, float sampleRate) noexcept
+void ADSREnvelope::reset(const EGDescription& desc, const Region& region, int delay, float velocity, float sampleRate) noexcept
 {
     this->sampleRate = sampleRate;
-
-    this->delay = delay + secondsToSamples(desc.getDelay(state, velocity));
-    this->attackStep = secondsToLinRate(desc.getAttack(state, velocity));
-    this->decayRate = secondsToExpRate(desc.getDecay(state, velocity));
-    this->releaseRate = secondsToExpRate(desc.getRelease(state, velocity));
-    this->hold = secondsToSamples(desc.getHold(state, velocity));
-    this->sustain = clamp(desc.getSustain(state, velocity), 0.0f, 1.0f);
-    this->start = clamp(desc.getStart(state, velocity), 0.0f, 1.0f);
-
+    desc_ = &desc;
+    triggerVelocity_ = velocity;
+    updateValues(delay);
     releaseDelay = 0;
-    sustainThreshold = this->sustain + config::virtuallyZero;
     shouldRelease = false;
     freeRunning = (
         (this->sustain <= Float(config::sustainFreeRunningThreshold))
@@ -61,7 +54,36 @@ void ADSREnvelope::reset(const EGDescription& desc, const Region& region, const
     currentState = State::Delay;
 }
 
+void ADSREnvelope::updateValues(int delay) noexcept
+{
+    this->delay = delay + secondsToSamples(desc_->getDelay(midiState_, triggerVelocity_, delay));
+    this->attackStep = secondsToLinRate(desc_->getAttack(midiState_, triggerVelocity_, delay));
+    this->decayRate = secondsToExpRate(desc_->getDecay(midiState_, triggerVelocity_, delay));
+    this->releaseRate = secondsToExpRate(desc_->getRelease(midiState_, triggerVelocity_, delay));
+    this->hold = secondsToSamples(desc_->getHold(midiState_, triggerVelocity_, delay));
+    this->sustain = clamp(desc_->getSustain(midiState_, triggerVelocity_, delay), 0.0f, 1.0f);
+    this->start = clamp(desc_->getStart(midiState_, triggerVelocity_, delay), 0.0f, 1.0f);
+    sustainThreshold = this->sustain + config::virtuallyZero;
+}
+
 void ADSREnvelope::getBlock(absl::Span<Float> output) noexcept
+{
+    if (desc_ && desc_->dynamic) {
+        int processed = 0;
+        int remaining = static_cast<int>(output.size());
+        while(remaining > 0) {
+            updateValues(processed);
+            int chunkSize = min(config::processChunkSize, remaining);
+            getBlockInternal(output.subspan(processed, chunkSize));
+            processed += chunkSize;
+            remaining -= chunkSize;
+        }
+    } else {
+        getBlockInternal(output);
+    }
+}
+
+void ADSREnvelope::getBlockInternal(absl::Span<Float> output) noexcept
 {
     State currentState = this->currentState;
     Float currentValue = this->currentValue;
diff --git a/src/sfizz/ADSREnvelope.h b/src/sfizz/ADSREnvelope.h
index ace1da7b..a970a1d4 100644
--- a/src/sfizz/ADSREnvelope.h
+++ b/src/sfizz/ADSREnvelope.h
@@ -18,7 +18,8 @@ class ADSREnvelope {
 public:
     using Float = float;
 
-    ADSREnvelope() = default;
+    ADSREnvelope(const MidiState& state)
+    : midiState_(state) {}
     /**
      * @brief Resets the ADSR envelope given a Region, the current midi state, and a delay and
      * trigger velocity
@@ -29,10 +30,9 @@ public:
      * @param delay
      * @param velocity
      */
-    void reset(const EGDescription& desc, const Region& region, const MidiState& state, int delay, float velocity, float sampleRate) noexcept;
+    void reset(const EGDescription& desc, const Region& region, int delay, float velocity, float sampleRate) noexcept;
     /**
-     * @brief Get a block of values for the envelope. This method tries hard to be efficient
-     * and hopefully it is.
+     * @brief Get the next block of values for the envelope.
      *
      * @param output
      */
@@ -81,6 +81,8 @@ private:
     int secondsToSamples(Float timeInSeconds) const noexcept;
     Float secondsToLinRate(Float timeInSeconds) const noexcept;
     Float secondsToExpRate(Float timeInSeconds) const noexcept;
+    void updateValues(int delay = 0) noexcept;
+    void getBlockInternal(absl::Span<Float> output) noexcept;
 
     enum class State {
         Delay,
@@ -94,6 +96,9 @@ private:
     };
     State currentState { State::Done };
     Float currentValue { 0.0 };
+    const EGDescription* desc_ { nullptr };
+    const MidiState& midiState_;
+    float triggerVelocity_ { 0.0f };
     int delay { 0 };
     Float attackStep { 0 };
     Float decayRate { 0 };
diff --git a/src/sfizz/Defaults.cpp b/src/sfizz/Defaults.cpp
index 40ce37c7..18844897 100644
--- a/src/sfizz/Defaults.cpp
+++ b/src/sfizz/Defaults.cpp
@@ -148,6 +148,7 @@ FloatSpec egPercent { 0.0f, {0.0f, 100.0f}, kNormalizePercent|kPermissiveBounds
 FloatSpec egPercentMod { 0.0f, {-100.0f, 100.0f}, kNormalizePercent|kPermissiveBounds };
 FloatSpec egDepth { 0.0f, {-12000.0f, 12000.0f}, kPermissiveBounds };
 FloatSpec egVel2Depth { 0.0f, {-12000.0f, 12000.0f}, kPermissiveBounds };
+BoolSpec egDynamic { 0, {0, 1}, kEnforceBounds };
 BoolSpec flexEGAmpeg { false, {0, 1}, kEnforceBounds };
 BoolSpec flexEGDynamic { 0, {0, 1}, kEnforceBounds };
 Int32Spec flexEGSustain { 0, {0, 100}, kEnforceLowerBound|kPermissiveUpperBound };
diff --git a/src/sfizz/Defaults.h b/src/sfizz/Defaults.h
index 7d6c54fa..db73157a 100644
--- a/src/sfizz/Defaults.h
+++ b/src/sfizz/Defaults.h
@@ -260,6 +260,7 @@ namespace Default
     extern const OpcodeSpec<float> egPercentMod;
     extern const OpcodeSpec<float> egDepth;
     extern const OpcodeSpec<float> egVel2Depth;
+    extern const OpcodeSpec<bool> egDynamic;
     extern const OpcodeSpec<bool> flexEGAmpeg;
     extern const OpcodeSpec<bool> flexEGDynamic;
     extern const OpcodeSpec<int32_t> flexEGSustain;
diff --git a/src/sfizz/EGDescription.h b/src/sfizz/EGDescription.h
index 26202ff1..fce5fc75 100644
--- a/src/sfizz/EGDescription.h
+++ b/src/sfizz/EGDescription.h
@@ -42,22 +42,6 @@ namespace sfz {
  *
  */
 
-/**
- * @brief If a cc switch exists for the value, returns the value with the CC modifier, otherwise returns the value alone.
- *
- * @param ccValues
- * @param ccSwitch
- * @param value
- * @return float
- */
-inline float ccSwitchedValue(const MidiState& state, const absl::optional<CCData<float>>& ccSwitch, float value) noexcept
-{
-    if (ccSwitch)
-        return value + ccSwitch->data * state.getCCValue(ccSwitch->cc);
-    else
-        return value;
-}
-
 struct EGDescription {
     EGDescription() = default;
     EGDescription(const EGDescription&) = default;
@@ -89,6 +73,7 @@ struct EGDescription {
     CCMap<float> ccRelease;
     CCMap<float> ccStart;
     CCMap<float> ccSustain;
+    bool dynamic { false };
 
     /**
      * @brief Get the attack with possibly a CC modifier and a velocity modifier
@@ -97,12 +82,12 @@ struct EGDescription {
      * @param velocity
      * @return float
      */
-    float getAttack(const MidiState& state, float velocity) const noexcept
+    float getAttack(const MidiState& state, float velocity, int delay = 0) const noexcept
     {
         ASSERT(velocity >= 0.0f && velocity <= 1.0f);
         float returnedValue { attack + velocity * vel2attack };
         for (auto& mod: ccAttack) {
-            returnedValue += state.getCCValue(mod.cc) * mod.data;
+            returnedValue += state.getCCValueAt(mod.cc, delay) * mod.data;
         }
         return returnedValue;
     }
@@ -113,12 +98,12 @@ struct EGDescription {
      * @param velocity
      * @return float
      */
-    float getDecay(const MidiState& state, float velocity) const noexcept
+    float getDecay(const MidiState& state, float velocity, int delay = 0) const noexcept
     {
         ASSERT(velocity >= 0.0f && velocity <= 1.0f);
         float returnedValue { decay + velocity * vel2decay };
         for (auto& mod: ccDecay) {
-            returnedValue += state.getCCValue(mod.cc) * mod.data;
+            returnedValue += state.getCCValueAt(mod.cc, delay) * mod.data;
         }
         return returnedValue;
     }
@@ -129,12 +114,12 @@ struct EGDescription {
      * @param velocity
      * @return float
      */
-    float getDelay(const MidiState& state, float velocity) const noexcept
+    float getDelay(const MidiState& state, float velocity, int delay = 0) const noexcept
     {
         ASSERT(velocity >= 0.0f && velocity <= 1.0f);
-        float returnedValue { delay + velocity * vel2delay };
+        float returnedValue { this->delay + velocity * vel2delay };
         for (auto& mod: ccDelay) {
-            returnedValue += state.getCCValue(mod.cc) * mod.data;
+            returnedValue += state.getCCValueAt(mod.cc, delay) * mod.data;
         }
         return returnedValue;
     }
@@ -145,12 +130,12 @@ struct EGDescription {
      * @param velocity
      * @return float
      */
-    float getHold(const MidiState& state, float velocity) const noexcept
+    float getHold(const MidiState& state, float velocity, int delay = 0) const noexcept
     {
         ASSERT(velocity >= 0.0f && velocity <= 1.0f);
         float returnedValue { hold + velocity * vel2hold };
         for (auto& mod: ccHold) {
-            returnedValue += state.getCCValue(mod.cc) * mod.data;
+            returnedValue += state.getCCValueAt(mod.cc, delay) * mod.data;
         }
         return returnedValue;
     }
@@ -161,12 +146,12 @@ struct EGDescription {
      * @param velocity
      * @return float
      */
-    float getRelease(const MidiState& state, float velocity) const noexcept
+    float getRelease(const MidiState& state, float velocity, int delay = 0) const noexcept
     {
         ASSERT(velocity >= 0.0f && velocity <= 1.0f);
         float returnedValue { release + velocity * vel2release };
         for (auto& mod: ccRelease) {
-            returnedValue += state.getCCValue(mod.cc) * mod.data;
+            returnedValue += state.getCCValueAt(mod.cc, delay) * mod.data;
         }
         return returnedValue;
     }
@@ -177,12 +162,12 @@ struct EGDescription {
      * @param velocity
      * @return float
      */
-    float getStart(const MidiState& state, float velocity) const noexcept
+    float getStart(const MidiState& state, float velocity, int delay = 0) const noexcept
     {
         UNUSED(velocity);
         float returnedValue { start };
         for (auto& mod: ccStart) {
-            returnedValue += state.getCCValue(mod.cc) * mod.data;
+            returnedValue += state.getCCValueAt(mod.cc, delay) * mod.data;
         }
         return returnedValue;
     }
@@ -193,12 +178,12 @@ struct EGDescription {
      * @param velocity
      * @return float
      */
-    float getSustain(const MidiState& state, float velocity) const noexcept
+    float getSustain(const MidiState& state, float velocity, int delay = 0) const noexcept
     {
         ASSERT(velocity >= 0.0f && velocity <= 1.0f);
         float returnedValue { sustain + velocity * vel2sustain };
         for (auto& mod: ccSustain) {
-            returnedValue += state.getCCValue(mod.cc) * mod.data;
+            returnedValue += state.getCCValueAt(mod.cc, delay) * mod.data;
         }
         return returnedValue;
     }
diff --git a/src/sfizz/Region.cpp b/src/sfizz/Region.cpp
index 344d7c6a..de7661a1 100644
--- a/src/sfizz/Region.cpp
+++ b/src/sfizz/Region.cpp
@@ -1091,6 +1091,10 @@ bool sfz::Region::parseEGOpcode(const Opcode& opcode, EGDescription& eg)
 
         break;
 
+    case_any_eg("dynamic"):
+        eg.dynamic = opcode.read(Default::egDynamic);
+        break;
+
     case hash("pitcheg_depth"):
         getOrCreateConnection(
             ModKey::createNXYZ(ModId::PitchEG, id),
diff --git a/src/sfizz/Synth.cpp b/src/sfizz/Synth.cpp
index 1e200b58..0bf23838 100644
--- a/src/sfizz/Synth.cpp
+++ b/src/sfizz/Synth.cpp
@@ -71,7 +71,7 @@ Synth::Impl::Impl()
     genController_.reset(new ControllerSource(resources_, voiceManager_));
     genLFO_.reset(new LFOSource(voiceManager_));
     genFlexEnvelope_.reset(new FlexEnvelopeSource(voiceManager_));
-    genADSREnvelope_.reset(new ADSREnvelopeSource(voiceManager_, midiState));
+    genADSREnvelope_.reset(new ADSREnvelopeSource(voiceManager_));
     genChannelAftertouch_.reset(new ChannelAftertouchSource(voiceManager_, midiState));
     genPolyAftertouch_.reset(new PolyAftertouchSource(voiceManager_, midiState));
 }
diff --git a/src/sfizz/SynthMessaging.cpp b/src/sfizz/SynthMessaging.cpp
index 3e6a87f2..a9d97ed9 100644
--- a/src/sfizz/SynthMessaging.cpp
+++ b/src/sfizz/SynthMessaging.cpp
@@ -1085,6 +1085,33 @@ void sfz::Synth::dispatchMessage(Client& client, int delay, const char* path, co
             client.receive<'f'>(delay, path, region.amplitudeEG.vel2depth);
         } break;
 
+        MATCH("/region&/ampeg_dynamic", "") {
+            GET_REGION_OR_BREAK(indices[0])
+            if (region.amplitudeEG.dynamic) {
+                client.receive<'T'>(delay, path, {});
+            } else {
+                client.receive<'F'>(delay, path, {});
+            }
+        } break;
+
+        MATCH("/region&/fileg_dynamic", "") {
+            GET_REGION_OR_BREAK(indices[0])
+            if (region.filterEG && region.filterEG->dynamic) {
+                client.receive<'T'>(delay, path, {});
+            } else {
+                client.receive<'F'>(delay, path, {});
+            }
+        } break;
+
+        MATCH("/region&/pitcheg_dynamic", "") {
+            GET_REGION_OR_BREAK(indices[0])
+            if (region.pitchEG && region.pitchEG->dynamic) {
+                client.receive<'T'>(delay, path, {});
+            } else {
+                client.receive<'F'>(delay, path, {});
+            }
+        } break;
+
         MATCH("/region&/note_polyphony", "") {
             GET_REGION_OR_BREAK(indices[0])
             if (region.notePolyphony) {
diff --git a/src/sfizz/Voice.cpp b/src/sfizz/Voice.cpp
index 14f14881..7be76b3b 100644
--- a/src/sfizz/Voice.cpp
+++ b/src/sfizz/Voice.cpp
@@ -271,7 +271,7 @@ struct Voice::Impl
     std::unique_ptr<LFO> lfoPitch_;
     std::unique_ptr<LFO> lfoFilter_;
 
-    ADSREnvelope egAmplitude_;
+    ADSREnvelope egAmplitude_ { resources_.getMidiState() };
     std::unique_ptr<ADSREnvelope> egPitch_;
     std::unique_ptr<ADSREnvelope> egFilter_;
 
@@ -1832,7 +1832,7 @@ void Voice::setPitchEGEnabledPerVoice(bool havePitchEG)
 {
     Impl& impl = *impl_;
     if (havePitchEG)
-        impl.egPitch_.reset(new ADSREnvelope);
+        impl.egPitch_.reset(new ADSREnvelope(impl.resources_.getMidiState()));
     else
         impl.egPitch_.reset();
 }
@@ -1841,7 +1841,7 @@ void Voice::setFilterEGEnabledPerVoice(bool haveFilterEG)
 {
     Impl& impl = *impl_;
     if (haveFilterEG)
-        impl.egFilter_.reset(new ADSREnvelope);
+        impl.egFilter_.reset(new ADSREnvelope(impl.resources_.getMidiState()));
     else
         impl.egFilter_.reset();
 }
diff --git a/src/sfizz/modulations/sources/ADSREnvelope.cpp b/src/sfizz/modulations/sources/ADSREnvelope.cpp
index 0ec5af8e..703b5d43 100644
--- a/src/sfizz/modulations/sources/ADSREnvelope.cpp
+++ b/src/sfizz/modulations/sources/ADSREnvelope.cpp
@@ -13,8 +13,8 @@
 
 namespace sfz {
 
-ADSREnvelopeSource::ADSREnvelopeSource(VoiceManager& manager, MidiState& state)
-    : voiceManager_(manager), midiState_(state)
+ADSREnvelopeSource::ADSREnvelopeSource(VoiceManager& manager)
+    : voiceManager_(manager)
 {
 }
 
@@ -79,7 +79,7 @@ void ADSREnvelopeSource::init(const ModKey& sourceKey, NumericId<Voice> voiceId,
 
     const TriggerEvent& triggerEvent = voice->getTriggerEvent();
     const float sampleRate = voice->getSampleRate();
-    eg->reset(*desc, *region, midiState_, delay, triggerEvent.value, sampleRate);
+    eg->reset(*desc, *region, delay, triggerEvent.value, sampleRate);
 }
 
 void ADSREnvelopeSource::release(const ModKey& sourceKey, NumericId<Voice> voiceId, unsigned delay)
diff --git a/src/sfizz/modulations/sources/ADSREnvelope.h b/src/sfizz/modulations/sources/ADSREnvelope.h
index 436127a7..f43722b9 100644
--- a/src/sfizz/modulations/sources/ADSREnvelope.h
+++ b/src/sfizz/modulations/sources/ADSREnvelope.h
@@ -7,14 +7,13 @@
 #pragma once
 #include "../ModGenerator.h"
 #include "../../VoiceManager.h"
-#include "../../MidiState.h"
 
 namespace sfz {
 class Synth;
 
 class ADSREnvelopeSource : public ModGenerator {
 public:
-    explicit ADSREnvelopeSource(VoiceManager &manager, MidiState& state);
+    explicit ADSREnvelopeSource(VoiceManager &manager);
     void init(const ModKey& sourceKey, NumericId<Voice> voiceId, unsigned delay) override;
     void release(const ModKey& sourceKey, NumericId<Voice> voiceId, unsigned delay) override;
     void cancelRelease(const ModKey& sourceKey, NumericId<Voice> voiceId, unsigned delay) override;
@@ -22,7 +21,6 @@ public:
 
 private:
     VoiceManager& voiceManager_;
-    MidiState& midiState_;
 };
 
 } // namespace sfz
diff --git a/tests/EGDescriptionT.cpp b/tests/EGDescriptionT.cpp
index ba0902e2..5813ce97 100644
--- a/tests/EGDescriptionT.cpp
+++ b/tests/EGDescriptionT.cpp
@@ -45,7 +45,7 @@ TEST_CASE("[EGDescription] Delay range")
     //REQUIRE(eg.getDelay(state, 127_norm) == 0.0f);
     state.ccEvent(0, 63, 127_norm);
     REQUIRE(eg.getDelay(state, 127_norm) == 1.0f);
-    REQUIRE(eg.getDelay(state, 0_norm) == 2.27f);
+    REQUIRE(eg.getDelay(state, 0_norm, 1) == 2.27f);
     //eg.ccDelay[63] = 127.0f;
     //REQUIRE(eg.getDelay(state, 0_norm) == 100.0f);
     eg.ccDelay[63] = 1.27f;
diff --git a/tests/PolyphonyT.cpp b/tests/PolyphonyT.cpp
index 0a966da9..3034372a 100644
--- a/tests/PolyphonyT.cpp
+++ b/tests/PolyphonyT.cpp
@@ -222,8 +222,8 @@ TEST_CASE("[Polyphony] Self-masking")
     synth.loadSfzString(fs::current_path() / "tests/TestFiles/polyphony.sfz", R"(
         <region> sample=*sine key=64 note_polyphony=2
     )");
-    synth.noteOn(0, 64, 63 );
-    synth.noteOn(1, 64, 62 );
+    synth.noteOn(0, 64, 63);
+    synth.noteOn(1, 64, 62);
     synth.noteOn(2, 64, 64);
     synth.renderBlock(buffer);
     REQUIRE( synth.getNumActiveVoices() == 3 ); // One of these is releasing
diff --git a/tests/RegionValuesT.cpp b/tests/RegionValuesT.cpp
index 970a259e..df7e64d6 100644
--- a/tests/RegionValuesT.cpp
+++ b/tests/RegionValuesT.cpp
@@ -3301,3 +3301,31 @@ TEST_CASE("[Values] Flex EGs CC")
     };
     REQUIRE(messageList == expected);
 }
+
+TEST_CASE("[Values] Dynamic EGs")
+{
+    Synth synth;
+    std::vector<std::string> messageList;
+    Client client(&messageList);
+    client.setReceiveCallback(&simpleMessageReceiver);
+
+    synth.loadSfzString(fs::current_path() / "tests/TestFiles/value_tests.sfz", R"(
+        <region> sample=kick.wav
+        <region> sample=kick.wav ampeg_dynamic=1 pitcheg_dynamic=1 fileg_dynamic=1
+    )");
+    synth.dispatchMessage(client, 0, "/region0/ampeg_dynamic", "", nullptr);
+    synth.dispatchMessage(client, 0, "/region0/pitcheg_dynamic", "", nullptr);
+    synth.dispatchMessage(client, 0, "/region0/fileg_dynamic", "", nullptr);
+    synth.dispatchMessage(client, 0, "/region1/ampeg_dynamic", "", nullptr);
+    synth.dispatchMessage(client, 0, "/region1/pitcheg_dynamic", "", nullptr);
+    synth.dispatchMessage(client, 0, "/region1/fileg_dynamic", "", nullptr);
+    std::vector<std::string> expected {
+        "/region0/ampeg_dynamic,F : {  }",
+        "/region0/pitcheg_dynamic,F : {  }",
+        "/region0/fileg_dynamic,F : {  }",
+        "/region1/ampeg_dynamic,T : {  }",
+        "/region1/pitcheg_dynamic,T : {  }",
+        "/region1/fileg_dynamic,T : {  }",
+    };
+    REQUIRE(messageList == expected);
+}