diff --git a/MEMLNaut-PAF-CARL.ino b/MEMLNaut-PAF-CARL.ino
index 5cab153..5ae1f43 100644
--- a/MEMLNaut-PAF-CARL.ino
+++ b/MEMLNaut-PAF-CARL.ino
@@ -155,23 +155,23 @@ void loop()
 }
 
 
-void AUDIO_FUNC(audio_block_callback)(float in[][kBufferSize], float out[][kBufferSize], size_t n_channels, size_t n_frames)
-{
-    digitalWrite(Pins::LED_TIMING, HIGH);
-    for (size_t i = 0; i < n_frames; ++i) {
+// void AUDIO_FUNC(audio_block_callback)(float in[][kBufferSize], float out[][kBufferSize], size_t n_channels, size_t n_frames)
+// {
+//     // digitalWrite(Pins::LED, HIGH);
+//     for (size_t i = 0; i < n_frames; ++i) {
 
-        float y = in[0][i];
+//         float y = in[0][i];
 
-        // Audio processing
-        if (audio_app) {
-            y = audio_app->ProcessLean();
-        }
+//         // Audio processing
+//         if (audio_app) {
+//             y = audio_app->ProcessLean();
+//         }
 
-        out[0][i] = y;
-        out[1][i] = y;
-    }
-    digitalWrite(Pins::LED_TIMING, LOW);
-}
+//         out[0][i] = y;
+//         out[1][i] = y;
+//     }
+//     // digitalWrite(Pins::LED, LOW);
+// }
 
 
 void setup1()
@@ -201,10 +201,10 @@ void setup1()
         MEMORY_BARRIER();
     }
 
-    AudioDriver::SetBlockCallback(audio_block_callback);
+    // AudioDriver::SetBlockCallback(audio_block_callback);
     // Start audio driver
     AudioDriver::Setup();
-    AudioDriver::SetBlockCallback(audio_block_callback);
+    // AudioDriver::SetBlockCallback(audio_block_callback);
 
 
     WRITE_VOLATILE(core_1_ready, true);
diff --git a/PAFSynthAudioApp.hpp b/PAFSynthAudioApp.hpp
index 20d6a0c..5b0b3b4 100644
--- a/PAFSynthAudioApp.hpp
+++ b/PAFSynthAudioApp.hpp
@@ -30,66 +30,66 @@ public:
 
     stereosample_t __force_inline Process(const stereosample_t x) override;
 
-    float __force_inline ProcessLean()
-    {
-        float x1[1];
+    // float __force_inline ProcessLean()
+    // {
+    //     float x1[1];
 
-        // const float trig = pulse.square(1);
+    //     // const float trig = pulse.square(1);
 
-        paf0.play(x1, 1, baseFreq, baseFreq + (paf0_cf * baseFreq), paf0_bw * baseFreq, paf0_vib, paf0_vfr, paf0_shift, 0);
-        float y = x1[0];
+    //     paf0.play(x1, 1, baseFreq, baseFreq + (paf0_cf * baseFreq), paf0_bw * baseFreq, paf0_vib, paf0_vfr, paf0_shift, 0);
+    //     float y = x1[0];
 
-        const float freq1 = baseFreq * detune;
+    //     const float freq1 = baseFreq * detune;
 
-        paf1.play(x1, 1, freq1, freq1 + (paf1_cf * freq1), paf1_bw * freq1, paf1_vib, paf1_vfr, paf1_shift, 1);
-        y += x1[0];
+    //     paf1.play(x1, 1, freq1, freq1 + (paf1_cf * freq1), paf1_bw * freq1, paf1_vib, paf1_vfr, paf1_shift, 1);
+    //     y += x1[0];
 
-        const float freq2 = freq1 * detune;
+    //     const float freq2 = freq1 * detune;
 
-        paf2.play(x1, 1, freq2, freq2 + (paf2_cf * freq2), paf2_bw * freq2, paf2_vib, paf2_vfr, paf2_shift, 1);
-        y += x1[0];
+    //     paf2.play(x1, 1, freq2, freq2 + (paf2_cf * freq2), paf2_bw * freq2, paf2_vib, paf2_vfr, paf2_shift, 1);
+    //     y += x1[0];
 
-    #ifdef ARPEGGIATOR
-        const float ph = phasorOsc.phasor(1);
-        const bool euclidNewNote = euclidean(ph, 12, euclidN, 0, 0.1f);
-        if(zxdetect.onZX(euclidNewNote)) {
-            envamp=0.8f;
-            freqIndex++;
-            if(freqIndex >= nFREQs) {
-                freqIndex = 0;
-            }
-            baseFreq = frequencies[freqIndex];
-    }else{
-            // constexpr float envdec = 0.2f/9000.f;
-            envamp -= envdec;
-            if (envamp < 0.f) {
-                envamp = 0.f;
-            }
-        }
-    #else
-        if(newNote) {
-            newNote = false;
-            envamp=0.8f;
-    }else{
-            // constexpr float envdec = 0.2f/9000.f;
-            envamp -= envdec;
-            if (envamp < 0.f) {
-                envamp = 0.f;
-            }
-        }
-    #endif)
-        y = y * envamp* envamp;
+    // #ifdef ARPEGGIATOR
+    //     const float ph = phasorOsc.phasor(1);
+    //     const bool euclidNewNote = euclidean(ph, 12, euclidN, 0, 0.1f);
+    //     if(zxdetect.onZX(euclidNewNote)) {
+    //         envamp=0.8f;
+    //         freqIndex++;
+    //         if(freqIndex >= nFREQs) {
+    //             freqIndex = 0;
+    //         }
+    //         baseFreq = frequencies[freqIndex];
+    // }else{
+    //         // constexpr float envdec = 0.2f/9000.f;
+    //         envamp -= envdec;
+    //         if (envamp < 0.f) {
+    //             envamp = 0.f;
+    //         }
+    //     }
+    // #else
+    //     if(newNote) {
+    //         newNote = false;
+    //         envamp=0.8f;
+    // }else{
+    //         // constexpr float envdec = 0.2f/9000.f;
+    //         envamp -= envdec;
+    //         if (envamp < 0.f) {
+    //             envamp = 0.f;
+    //         }
+    //     }
+    // #endif
+    //     y = y * envamp* envamp;
 
-    #ifndef ARPEGGIATOR
-        y *= noteVel;
-    #endif
+    // #ifndef ARPEGGIATOR
+    //     y *= noteVel;
+    // #endif
 
-        float d1 = (dl1.play(y, 3500, 0.8f) * dl1mix);
-        // float d2 = (dl2.play(y, 15000, 0.8f) * dl2mix);
-        y = y + d1;// + d2;
-        frame++;
-        return y;
-    }
+    //     float d1 = (dl1.play(y, 3500, 0.8f) * dl1mix);
+    //     // float d2 = (dl2.play(y, 15000, 0.8f) * dl2mix);
+    //     y = y + d1;// + d2;
+    //     frame++;
+    //     return y;
+    // }
 
     void Setup(float sample_rate, std::shared_ptr<InterfaceBase> interface) override;
 
diff --git a/src/memllib b/src/memllib
index 95c1e6a..a85fab4 160000
--- a/src/memllib
+++ b/src/memllib
@@ -1 +1 @@
-Subproject commit 95c1e6abd474c744b17763d432e65fe208a773b3
+Subproject commit a85fab44b44034098cec31285bfd68f4a041b33a