diff --git a/packages/codemirror/codemirror.mjs b/packages/codemirror/codemirror.mjs
index 4ede65869..7cbb925d8 100644
--- a/packages/codemirror/codemirror.mjs
+++ b/packages/codemirror/codemirror.mjs
@@ -268,9 +268,9 @@ export class StrudelMirror {
     this.flash();
     await this.repl.evaluate(this.code);
   }
-  async exportAudio(begin, end) {
+  async exportAudio(begin, end, sampleRate, downloadName = undefined) {
     await this.repl.evaluate(this.code, false)
-    await this.repl.exportAudio(begin, end);
+    await this.repl.exportAudio(begin, end, sampleRate, downloadName);
     this.repl.scheduler.stop();
 
   }
diff --git a/packages/core/cyclist.mjs b/packages/core/cyclist.mjs
index b7ab7dde4..167f18828 100644
--- a/packages/core/cyclist.mjs
+++ b/packages/core/cyclist.mjs
@@ -112,14 +112,12 @@ export class Cyclist {
     this.setStarted(true);
   }
 
-  async exportAudio(begin, end) {
+  async exportAudio(begin, end, sampleRate, downloadName = undefined) {
     if (!this.pattern) {
       throw new Error('Scheduler: no pattern set! call .setPattern first.');
     }
     logger('[cyclist] exporting');
-    // this.clock.start();
-    // this.setStarted(true);
-    await renderPatternAudio(this.pattern, this.cps, begin, end)
+    await renderPatternAudio(this.pattern, this.cps, begin, end, sampleRate, downloadName)
   }
 
   pause() {
diff --git a/packages/core/repl.mjs b/packages/core/repl.mjs
index 47527c334..970c15a67 100644
--- a/packages/core/repl.mjs
+++ b/packages/core/repl.mjs
@@ -91,7 +91,7 @@ export function repl({
 
   const stop = () => scheduler.stop();
   const start = () => scheduler.start();
-  const exportAudio = async (begin, end) => await scheduler.exportAudio(begin, end);
+  const exportAudio = async (begin, end, sampleRate, downloadName = undefined) => await scheduler.exportAudio(begin, end, sampleRate, downloadName);
   const pause = () => scheduler.pause();
   const toggle = () => scheduler.toggle();
   const setCps = (cps) => {
diff --git a/packages/superdough/audioContext.mjs b/packages/superdough/audioContext.mjs
index 30fbd9fd0..ea60722b1 100644
--- a/packages/superdough/audioContext.mjs
+++ b/packages/superdough/audioContext.mjs
@@ -1,7 +1,10 @@
+import { analysers, resetGlobalEffects } from "./superdough.mjs";
+
 let audioContext;
 
 export const setDefaultAudioContext = () => {
   audioContext = new AudioContext();
+  resetGlobalEffects()
   return audioContext;
 };
 
diff --git a/packages/superdough/superdough.mjs b/packages/superdough/superdough.mjs
index 323866217..ed5cd9649 100644
--- a/packages/superdough/superdough.mjs
+++ b/packages/superdough/superdough.mjs
@@ -8,7 +8,7 @@ import './feedbackdelay.mjs';
 import './reverb.mjs';
 import './vowel.mjs';
 import { nanFallback, _mod, cycleToSeconds } from './util.mjs';
-import workletsUrl from './worklets.mjs?audioworklet';
+import workletsUrl from './worklets.mjs?url';
 import { createFilter, gainNode, getCompressor, getDistortion, getLfo, getWorklet, effectSend } from './helpers.mjs';
 import { map } from 'nanostores';
 import { logger } from './logger.mjs';
@@ -332,7 +332,7 @@ export let analysers = {},
   analysersData = {};
 
 export function getAnalyserById(id, fftSize = 1024, smoothingTimeConstant = 0.5) {
-  if (!analysers[id]) {
+  if (!analysers[id] || analysers[id].audioContext != getAudioContext()) {
     // make sure this doesn't happen too often as it piles up garbage
     const analyserNode = getAudioContext().createAnalyser();
     analyserNode.fftSize = fftSize;
@@ -722,7 +722,7 @@ export const superdough = async (value, t, hapDuration, cps = 0.5, cycle = 0.5)
   }
 
   // analyser
-  if (analyze) {
+  if (analyze && !(ac instanceof OfflineAudioContext)) {
     const analyserNode = getAnalyserById(analyze, 2 ** (fft + 5));
     const analyserSend = effectSend(post, analyserNode, 1);
     audioNodes.push(analyserSend);
diff --git a/packages/webaudio/webaudio.mjs b/packages/webaudio/webaudio.mjs
index cbc5e791c..27718bd7d 100644
--- a/packages/webaudio/webaudio.mjs
+++ b/packages/webaudio/webaudio.mjs
@@ -27,10 +27,10 @@ export const webaudioOutput = (hap, _deadline, hapDuration, cps, t) => {
   return superdough(hap2value(hap), t, hapDuration, cps, hap.whole?.begin.valueOf());
 };
 
-export async function renderPatternAudio(pattern, cps, begin, end) {
+export async function renderPatternAudio(pattern, cps, begin, end, sampleRate, downloadName = undefined) {
   const oldAudioCtx = getAudioContext()
   await oldAudioCtx.close()
-  let audioContext = new OfflineAudioContext(2, (end - begin) / cps * 48000, 48000);
+  let audioContext = new OfflineAudioContext(2, (end - begin) / cps * sampleRate, sampleRate);
   setAudioContext(audioContext)
   let context = getAudioContext()
   setSuperdoughAudioController(new SuperdoughAudioController(context))
@@ -63,25 +63,20 @@ export async function renderPatternAudio(pattern, cps, begin, end) {
     }
   })
 
-  return context.startRendering().then(async (renderedBuffer) => {
+  return context.startRendering().then((renderedBuffer) => {
     console.log(renderedBuffer)
     const wavBuffer = audioBufferToWav(renderedBuffer);
     const blob = new Blob([wavBuffer], { type: 'audio/wav' });
-    let downloadName = ''
     const url = URL.createObjectURL(blob);
     const a = document.createElement('a');
     a.href = url;
-    // remove leading dash if they want an empty download name
-    if (downloadName == '') {
-      downloadName = `${new Date().toISOString()}.wav`;
-    } else {
-      downloadName = downloadName + `-${new Date().toISOString()}.wav`;
-    }
+    downloadName = downloadName ? `${downloadName}.wav` : `${new Date().toISOString()}.wav`;
     a.download = `${downloadName}`;
     document.body.appendChild(a);
     a.click();
     document.body.removeChild(a);
     URL.revokeObjectURL(url);
+  }).finally(async () => {
     setAudioContext(null)
     setSuperdoughAudioController(null)
     await initAudio()
diff --git a/website/src/repl/components/ExportModal.jsx b/website/src/repl/components/ExportModal.jsx
index 545350bbe..4f474f381 100644
--- a/website/src/repl/components/ExportModal.jsx
+++ b/website/src/repl/components/ExportModal.jsx
@@ -1,25 +1,51 @@
 import PlayCircleIcon from '@heroicons/react/20/solid/PlayCircleIcon';
 import cx from '@src/cx.mjs';
 import NumberInput from './NumberInput';
-import { useState } from 'react';
+import { useEffect, useState } from 'react';
 import { Textbox } from './textbox/Textbox';
-import { setMultiChannelOrbits as setStrudelMultiChannelOrbits, setMaxPolyphony as setStrudelMaxPolyphony } from '@strudel/webaudio';
+import { setMultiChannelOrbits as setStrudelMultiChannelOrbits, setMaxPolyphony as setStrudelMaxPolyphony, getAudioContext } from '@strudel/webaudio';
+import XMarkIcon from '@heroicons/react/24/outline/XMarkIcon';
+
 function Checkbox({ label, value, onChange, disabled = false }) {
     return (
-        <label>
+        <label className={cx(disabled && "opacity-50")}>
             <input disabled={disabled} type="checkbox" checked={value} onChange={onChange} />
             {' ' + label}
         </label>
     );
 }
+
+function FormItem({ label, children, disabled }) {
+    return (
+        <div className="grid gap-2">
+            <label className={cx(disabled && "opacity-50")}>{label}</label>
+            {children}
+        </div>
+    );
+}
+
 export default function ExportModal(Props) {
     const { started, isEmbedded, handleExport } = Props;
 
-    const [startCycle, setStartCycle] = useState(0) // TODO: make a form?
-    const [endCycle, setEndCycle] = useState(0)
+    const [downloadName, setDownloadName] = useState("") // TODO: make a form?
+    const [startCycle, setStartCycle] = useState(0)
+    const [endCycle, setEndCycle] = useState(1)
+    const [sampleRate, setSampleRate] = useState(48000)
     const [multiChannelOrbits, setMultiChannelOrbits] = useState(true)
     const [maxPolyphony, setMaxPolyphony] = useState(1024)
     const [exporting, setExporting] = useState(false)
+    const [progress, setProgress] = useState(0)
+    const [length, setLength] = useState(1)
+
+    const refreshProgress = () => {
+        const audioContext = getAudioContext()
+        if (audioContext instanceof OfflineAudioContext) {
+            setProgress(audioContext.currentTime)
+            setLength(audioContext.length / sampleRate)
+            setTimeout(refreshProgress, 100);
+        }
+    }
+
     return (
         <>
             <button
@@ -37,90 +63,154 @@ export default function ExportModal(Props) {
             >
                 {!isEmbedded && <span>export</span>}
             </button>
-            <dialog closedby={exporting ? "none" : "closerequest"} id='exportModal' className='bg-background text-foreground'>
-                <button autofocus onClick={() => {
-                    if (exporting) return;
-                    const modal = document.getElementById("exportModal");
-                    modal.close();
-                }}>Close</button>
-                <div className='flex flex-row items-center gap-4'>
-                    <p>Start cycle</p>
-                    <Textbox
-                        min={1}
-                        max={Infinity}
-                        onBlur={(e) => {
-                            let v = parseInt(e.target.value);
-                            console.log(v)
-                            v = isNaN(v) ? 0 : Math.max(0, v);
-                            setStartCycle(v);
-                        }}
-                        onChange={v => {
-                            v = parseInt(v)
-                            setStartCycle(v);
-                        }}
-                        type="number"
-                        placeholder=""
-                        value={startCycle ?? ''}
-                    />
-                </div>
-                <div className='flex flex-row items-center gap-4'>
-                    <p>End cycle</p>
-                    <Textbox
-                        min={1}
-                        max={Infinity}
-                        onBlur={(e) => {
-                            let v = parseInt(e.target.value);
-                            v = isNaN(v) ? Math.max(startCycle + 1, parseInt(v)) : v;
-                            setEndCycle(v);
-                        }}
-                        onChange={(v) => {
-                            v = parseInt(v)
-                            setEndCycle(v);
-                        }}
-                        type="number"
-                        placeholder=""
-                        value={endCycle ?? ''}
-                    />
-                </div>
-                <div className='flex flex-row items-center gap-4'>
-                    <p>Maximum polyphony</p>
-                    <Textbox
-                        min={1}
-                        max={Infinity}
-                        onBlur={(e) => {
-                            let v = parseInt(e.target.value);
-                            v = isNaN(v) ? Math.max(1, parseInt(v)) : v;
-                            setMaxPolyphony(v);
-                        }}
-                        onChange={(v) => {
-                            v = Math.max(1, parseInt(v));
-                            setMaxPolyphony(v);
-                        }}
-                        type="number"
-                        placeholder=""
-                        value={maxPolyphony ?? ''}
-                    />
-                </div>
-                <div>
-                    <Checkbox
-                        label="Multi Channel Orbits"
-                        onChange={(cbEvent) => {
-                            const val = cbEvent.target.checked;
-                            setMultiChannelOrbits(val)
-                        }}
-                        value={multiChannelOrbits}
-                    />
-                </div>
-                <button disabled={exporting} onClick={async () => {
-                    setStrudelMaxPolyphony(maxPolyphony)
-                    setStrudelMultiChannelOrbits(multiChannelOrbits)
-                    setExporting(true)
-                    await handleExport(startCycle, endCycle).then(() => {
-                        setExporting(false)
+            <dialog closedby={exporting ? "none" : "closerequest"} id='exportModal' className='text-md bg-background text-foreground rounded-lg backdrop:bg-background backdrop:opacity-50'>
+                <button
+                    onClick={() => {
+                        if (exporting) return;
                         const modal = document.getElementById("exportModal");
                         modal.close();
-                    })
-                }}>Export to wav</button>
+                    }}
+                    className={cx(
+                        'absolute text-foreground max-h-8 min-h-8 max-w-8 min-w-8 items-center p-1.5 right-2 top-2 z-50',
+                        exporting && "opacity-50"
+                    )}
+                    aria-label="Close Modal"
+                >
+                    <XMarkIcon />
+                </button>
+                <div className='bg-lineHighlight p-4 space-y-4 relative'>
+                    <FormItem label="File name" disabled={exporting}>
+                        <Textbox
+                            onBlur={(e) => {
+                                setDownloadName(e.target.value)
+                            }}
+                            onChange={v => {
+                                setDownloadName(v)
+                            }}
+                            disabled={exporting}
+                            placeholder="Leave empty to use current date"
+                            className={cx("placeholder:opacity-50", exporting && "opacity-50 border-opacity-50")}
+                            value={downloadName ?? ''}
+                        />
+                    </FormItem>
+                    <div className='flex flex-row gap-4'>
+                        <FormItem label="Start cycle" disabled={exporting}>
+                            <Textbox
+                                min={1}
+                                max={Infinity}
+                                onBlur={(e) => {
+                                    let v = parseInt(e.target.value);
+                                    v = isNaN(v) ? 0 : Math.max(0, v);
+                                    setStartCycle(v);
+                                }}
+                                onChange={v => {
+                                    v = parseInt(v)
+                                    setStartCycle(v);
+                                }}
+                                type="number"
+                                placeholder=""
+                                disabled={exporting}
+                                className={cx(exporting && "opacity-50 border-opacity-50")}
+                                value={startCycle ?? ''}
+                            />
+                        </FormItem>
+                        <FormItem label="End cycle" disabled={exporting}>
+                            <Textbox
+                                min={1}
+                                max={Infinity}
+                                onBlur={(e) => {
+                                    let v = parseInt(e.target.value);
+                                    v = isNaN(v) ? Math.max(startCycle + 1, parseInt(v)) : v;
+                                    setEndCycle(v);
+                                }}
+                                onChange={(v) => {
+                                    v = parseInt(v)
+                                    setEndCycle(v);
+                                }}
+                                type="number"
+                                placeholder=""
+                                disabled={exporting}
+                                className={cx(exporting && "opacity-50 border-opacity-50")}
+                                value={endCycle ?? ''}
+                            />
+                        </FormItem>
+                    </div>
+                    <div className='flex flex-row gap-4'>
+                        <FormItem label="Sample rate" disabled={exporting}>
+                            <Textbox
+                                min={1}
+                                max={Infinity}
+                                onBlur={(e) => {
+                                    let v = parseInt(e.target.value);
+                                    v = isNaN(v) ? 1 : Math.max(1, v);
+                                    setSampleRate(v);
+                                }}
+                                onChange={v => {
+                                    v = parseInt(v)
+                                    setSampleRate(v);
+                                }}
+                                type="number"
+                                placeholder=""
+                                disabled={exporting}
+                                className={cx(exporting && "opacity-50 border-opacity-50")}
+                                value={sampleRate ?? ''}
+                            />
+                        </FormItem>
+                        <FormItem label="Maximum polyphony" disabled={exporting}>
+                            <Textbox
+                                min={1}
+                                max={Infinity}
+                                onBlur={(e) => {
+                                    let v = parseInt(e.target.value);
+                                    v = isNaN(v) ? Math.max(1, parseInt(v)) : v;
+                                    setMaxPolyphony(v);
+                                }}
+                                onChange={(v) => {
+                                    v = Math.max(1, parseInt(v));
+                                    setMaxPolyphony(v);
+                                }}
+                                type="number"
+                                placeholder=""
+                                disabled={exporting}
+                                className={cx(exporting && "opacity-50 border-opacity-50")}
+                                value={maxPolyphony ?? ''}
+                            />
+                        </FormItem>
+                    </div>
+                    <div>
+                        <Checkbox
+                            label="Multi Channel Orbits"
+                            onChange={(cbEvent) => {
+                                const val = cbEvent.target.checked;
+                                setMultiChannelOrbits(val)
+                            }}
+                            disabled={exporting}
+                            value={multiChannelOrbits}
+                        />
+                    </div>
+                    <button
+                        className={cx("bg-background p-2 w-full rounded-md hover:opacity-50 relative", exporting && "opacity-50")}
+                        disabled={exporting}
+                        onClick={async () => {
+                            setExporting(true)
+                            setStrudelMaxPolyphony(maxPolyphony)
+                            setStrudelMultiChannelOrbits(multiChannelOrbits)
+                            setTimeout(refreshProgress, 1000);
+                            await handleExport(startCycle, endCycle, sampleRate, downloadName).finally(() => {
+                                setExporting(false)
+                                const modal = document.getElementById("exportModal");
+                                setProgress(0)
+                                setLength(1)
+                                modal.close();
+                            })
+                        }}
+                    >
+                        <span className='text-foreground'>{exporting ? "Exporting..." : "Export to WAV"}</span>
+                        <div className="bg-foreground opacity-10 absolute top-0 left-0 right-0 bottom-0" style={{
+                            width: `${progress / length * 100}%`
+                        }} />
+                    </button>
+                </div>
             </dialog>
         </>
     );
diff --git a/website/src/repl/useReplContext.jsx b/website/src/repl/useReplContext.jsx
index b9f1c8c8b..0e89fb68b 100644
--- a/website/src/repl/useReplContext.jsx
+++ b/website/src/repl/useReplContext.jsx
@@ -203,8 +203,8 @@ export function useReplContext() {
   const handleEvaluate = () => {
     editorRef.current.evaluate();
   };
-  const handleExport = async (begin, end) => {
-    await editorRef.current.exportAudio(begin, end);
+  const handleExport = async (begin, end, sampleRate, downloadName = undefined) => {
+    await editorRef.current.exportAudio(begin, end, sampleRate, downloadName);
   };
   const handleShuffle = async () => {
     const patternData = await getRandomTune();