diff --git a/demo/script.js b/demo/script.js
index 96e7f9a..543a4ad 100644
--- a/demo/script.js
+++ b/demo/script.js
@@ -39,7 +39,7 @@ const startRecording = async () => {
 
 	endRecordingButton.style.display = 'block';
 
-	let audioSampleRate = audioTrack?.getCapabilities().sampleRate.max;
+	let audioSampleRate = audioTrack?.getCapabilities().sampleRate.min;
 
 	// Create an MP4 muxer with a video track and maybe an audio track
 	muxer = new Mp4Muxer.Muxer({
@@ -203,4 +203,4 @@ window.addEventListener('mousemove', (e) => {
 	let newPos = getRelativeMousePos(e);
 	drawLine(lastPos, newPos);
 	lastPos = newPos;
-});
\ No newline at end of file
+});