diff --git a/CHANGELOG.md b/CHANGELOG.md
index 426b7a3..61bb6a2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,7 +2,7 @@
 
 ## 0.13.x
 
-- DrumMachines accept a DrumMachineInstrument as source
+#### DrumMachines accept a DrumMachineInstrument as source
 
 Previously you could use a instrument name or a instrument url to load a DrumMachine.
 
@@ -27,6 +27,7 @@ const drums = new DrumMachine(context, {
 });
 ```
 
+- Fix: sample rate used to calculate soundfont loop data
 - DrumMachine uses https://github.com/smpldsnds/drum-machines as source of samples
 - Fix: `detune` param on `start` method
 
diff --git a/package.json b/package.json
index a819eab..6a06e88 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "smplr",
-  "version": "0.13.3",
+  "version": "0.13.4",
   "homepage": "https://github.com/danigb/smplr#readme",
   "description": "A Sampled collection of instruments",
   "main": "dist/index.js",
diff --git a/site/next.config.js b/site/next.config.js
index d4d4344..99dfbee 100644
--- a/site/next.config.js
+++ b/site/next.config.js
@@ -10,6 +10,7 @@ if (isDeploy) {
 }
 /** @type {import('next').NextConfig} */
 const nextConfig = {
+  output: "export",
   assetPrefix,
   basePath,
   reactStrictMode: true,
diff --git a/site/package.json b/site/package.json
index c005b39..fa0d4d5 100644
--- a/site/package.json
+++ b/site/package.json
@@ -7,7 +7,7 @@
     "devs": "next-dev-https --https  --port 3001",
     "deploy": "npm run deploy:build && npm run deploy:github",
     "deploy:github": "npm run deploy:build && gh-pages -d out/ -t true",
-    "deploy:build": "DEPLOY=true next build && DEPLOY=true next export",
+    "deploy:build": "DEPLOY=true next build",
     "start": "next start",
     "lint": "next lint"
   },
diff --git a/src/soundfont/soundfont-loops.ts b/src/soundfont/soundfont-loops.ts
index 73f35bc..4dce2f4 100644
--- a/src/soundfont/soundfont-loops.ts
+++ b/src/soundfont/soundfont-loops.ts
@@ -13,7 +13,8 @@ export function getGoldstSoundfontLoopsUrl(instrument: string, kit: string) {
  * @see https://github.com/danigb/smplr/issues/23
  */
 export async function fetchSoundfontLoopData(
-  url?: string
+  url?: string,
+  sampleRate = 44100
 ): Promise<LoopData | undefined> {
   if (!url) return undefined;
   try {
@@ -22,7 +23,6 @@ export async function fetchSoundfontLoopData(
 
     const raw = await req.json();
     const loopData: LoopData = {};
-    const sampleRate = 41000; // this is sample rate from the repository samples
     Object.keys(raw).forEach((key) => {
       const midi = toMidi(key);
       if (midi) {