diff --git a/src/wavesurfer.ts b/src/wavesurfer.ts
index 0f4eda4ab..ff48c5664 100644
--- a/src/wavesurfer.ts
+++ b/src/wavesurfer.ts
@@ -353,6 +353,16 @@ class WaveSurfer extends Player<WaveSurferEvents> {
   /** Set new wavesurfer options and re-render it */
   public setOptions(options: Partial<WaveSurferOptions>) {
     this.options = Object.assign({}, this.options, options)
+    if (options.duration && !options.peaks) {
+      this.decodedData = Decoder.createBuffer(this.exportPeaks(), options.duration)
+    }
+    if (options.peaks && options.duration) {
+      // Create new decoded data buffer from peaks and duration
+      this.decodedData = Decoder.createBuffer(
+        options.peaks,
+        options.duration
+      );
+    }
     this.renderer.setOptions(this.options)
 
     if (options.audioRate) {