working

packages/core/controls.mjs

@@ -1516,6 +1516,28 @@ export const { roomfade, rfade } = registerControl('roomfade', 'rfade');
  *
  */
 export const { ir, iresponse } = registerControl(['ir', 'i'], 'iresponse');
+
+/**
+ * Sets the sample to use as an impulse response for the reverb.
+ * @name iresponse
+ * @param {string | Pattern} sample to use as an impulse response
+ * @synonyms ir
+ * @example
+ * s("bd sd [~ bd] sd").room(.8).ir("<shaker_large:0 shaker_large:2>")
+ *
+ */
+export const { irspeed } = registerControl('irspeed');
+
+/**
+ * Sets the sample to use as an impulse response for the reverb.
+ * @name iresponse
+ * @param {string | Pattern} sample to use as an impulse response
+ * @synonyms ir
+ * @example
+ * s("bd sd [~ bd] sd").room(.8).ir("<shaker_large:0 shaker_large:2>")
+ *
+ */
+export const { irbegin } = registerControl('irbegin');
 /**
  * Sets the room size of the reverb, see `room`.
  * When this property is changed, the reverb will be recaculated, so only change this sparsely..

packages/core/pattern.mjs

@@ -3276,7 +3276,7 @@ export const slice = register(
  * @memberof Pattern
  *  @returns Pattern
  * @example
- * s("bd!8").onTriggerTime((hap) => {console.info(hap)})
+ * s("bd!8").onTriggerTime((hap) => {console.log(hap)})
  */
 Pattern.prototype.onTriggerTime = function (func) {
   return this.onTrigger((hap, currentTime, _cps, targetTime) => {

packages/superdough/reverb.mjs

@@ -1,7 +1,8 @@
 import reverbGen from './reverbGen.mjs';
 
 if (typeof AudioContext !== 'undefined') {
-  AudioContext.prototype.adjustLength = function (duration, buffer) {
+  AudioContext.prototype.adjustLength = function (duration, buffer, speed = 1, offsetSeconds = 0) {
+    const offset = offsetSeconds * buffer.sampleRate;
     const newLength = buffer.sampleRate * duration;
     const newBuffer = this.createBuffer(buffer.numberOfChannels, buffer.length, buffer.sampleRate);
     for (let channel = 0; channel < buffer.numberOfChannels; channel++) {
@@ -9,22 +10,29 @@ if (typeof AudioContext !== 'undefined') {
       let newData = newBuffer.getChannelData(channel);
 
       for (let i = 0; i < newLength; i++) {
-        newData[i] = oldData[i] || 0;
+        let position = (offset + i * Math.abs(speed)) % oldData.length;
+        if (speed < 1) {
+          position = position * -1;
+        }
+
+        newData[i] = oldData.at(position) || 0;
       }
     }
     return newBuffer;
   };
 
-  AudioContext.prototype.createReverb = function (duration, fade, lp, dim, ir) {
+  AudioContext.prototype.createReverb = function (duration, fade, lp, dim, ir, irspeed, irbegin) {
     const convolver = this.createConvolver();
-    convolver.generate = (d = 2, fade = 0.1, lp = 15000, dim = 1000, ir) => {
+    convolver.generate = (d = 2, fade = 0.1, lp = 15000, dim = 1000, ir, irspeed, irbegin) => {
       convolver.duration = d;
       convolver.fade = fade;
       convolver.lp = lp;
       convolver.dim = dim;
       convolver.ir = ir;
+      convolver.irspeed = irspeed;
+      convolver.irbegin = irbegin;
       if (ir) {
-        convolver.buffer = this.adjustLength(d, ir);
+        convolver.buffer = this.adjustLength(d, ir, irspeed, irbegin);
       } else {
         reverbGen.generateReverb(
           {
@@ -41,7 +49,7 @@ if (typeof AudioContext !== 'undefined') {
         );
       }
     };
-    convolver.generate(duration, fade, lp, dim, ir);
+    convolver.generate(duration, fade, lp, dim, ir, irspeed, irbegin);
     return convolver;
   };
 }

packages/superdough/superdough.mjs

@@ -326,7 +326,7 @@ export const panic = () => {
   channelMerger == null;
 };
 
-function getDelay(orbit, delaytime, delayfeedback, t, channels) {
+function getDelay(orbit, delaytime, delayfeedback, t) {
   if (delayfeedback > maxfeedback) {
     //logger(`delayfeedback was clamped to ${maxfeedback} to save your ears`);
   }
@@ -442,19 +442,22 @@ function duckOrbit(audioContext, targetOrbit, t, attacktime = 0.1, duckdepth = 1
 }
 
 let hasChanged = (now, before) => now !== undefined && now !== before;
-function getReverb(orbit, duration, fade, lp, dim, ir) {
+function getReverb(orbit, duration, fade, lp, dim, ir, irspeed, irbegin) {
   // If no reverb has been created for a given orbit, create one
   if (!orbits[orbit].reverbNode) {
     const ac = getAudioContext();
-    const reverb = ac.createReverb(duration, fade, lp, dim, ir);
+    const reverb = ac.createReverb(duration, fade, lp, dim, ir, irspeed, irbegin);
     connectToOrbit(reverb, orbit);
     orbits[orbit].reverbNode = reverb;
   }
+
   if (
     hasChanged(duration, orbits[orbit].reverbNode.duration) ||
     hasChanged(fade, orbits[orbit].reverbNode.fade) ||
     hasChanged(lp, orbits[orbit].reverbNode.lp) ||
     hasChanged(dim, orbits[orbit].reverbNode.dim) ||
+    hasChanged(irspeed, orbits[orbit].reverbNode.irspeed) ||
+    hasChanged(irbegin, orbits[orbit].reverbNode.irbegin) ||
     orbits[orbit].reverbNode.ir !== ir
   ) {
     // only regenerate when something has changed
@@ -462,7 +465,7 @@ function getReverb(orbit, duration, fade, lp, dim, ir) {
     // stack(s("a"), s("b").rsize(8)).room(.5)
     // this only works when args may stay undefined until here
     // setting default values breaks this
-    orbits[orbit].reverbNode.generate(duration, fade, lp, dim, ir);
+    orbits[orbit].reverbNode.generate(duration, fade, lp, dim, ir, irspeed, irbegin);
   }
   return orbits[orbit].reverbNode;
 }
@@ -619,6 +622,8 @@ export const superdough = async (value, t, hapDuration, cps = 0.5, cycle = 0.5)
     roomdim,
     roomsize,
     ir,
+    irspeed,
+    irbegin,
     i = getDefaultValue('i'),
     velocity = getDefaultValue('velocity'),
     analyze, // analyser wet
@@ -832,7 +837,7 @@ export const superdough = async (value, t, hapDuration, cps = 0.5, cycle = 0.5)
   // delay
   let delaySend;
   if (delay > 0 && delaytime > 0 && delayfeedback > 0) {
-    const delayNode = getDelay(orbit, delaytime, delayfeedback, t, orbitChannels);
+    const delayNode = getDelay(orbit, delaytime, delayfeedback, t);
     delaySend = effectSend(post, delayNode, delay);
     audioNodes.push(delaySend);
   }
@@ -850,7 +855,7 @@ export const superdough = async (value, t, hapDuration, cps = 0.5, cycle = 0.5)
       }
       roomIR = await loadBuffer(url, ac, ir, 0);
     }
-    const reverbNode = getReverb(orbit, roomsize, roomfade, roomlp, roomdim, roomIR, orbitChannels);
+    const reverbNode = getReverb(orbit, roomsize, roomfade, roomlp, roomdim, roomIR, irspeed, irbegin);
     reverbSend = effectSend(post, reverbNode, room);
     audioNodes.push(reverbSend);
   }