diff --git a/audio/internal/convert/resampling.go b/audio/internal/convert/resampling.go
index fb3401262..9ea36c885 100644
--- a/audio/internal/convert/resampling.go
+++ b/audio/internal/convert/resampling.go
@@ -19,6 +19,7 @@ import (
 	"math"
 
 	"github.com/hajimehoshi/ebiten/audio"
+	"github.com/hajimehoshi/ebiten/internal/web"
 )
 
 func sinc(x float64) float64 {
@@ -126,16 +127,19 @@ func (r *Resampling) src(i int) (float64, float64, error) {
 }
 
 func (r *Resampling) at(t int64) (float64, float64, error) {
-	const windowSize = 8
+	windowSize := 8
+	if web.IsBrowser() {
+		windowSize = 4
+	}
 	tInSrc := float64(t) * float64(r.from) / float64(r.to)
-	startN := int64(tInSrc) - windowSize
+	startN := int64(tInSrc) - int64(windowSize)
 	if startN < 0 {
 		startN = 0
 	}
 	if r.size/4 <= startN {
 		startN = r.size/4 - 1
 	}
-	endN := int64(tInSrc) + windowSize + 1
+	endN := int64(tInSrc) + int64(windowSize) + 1
 	if r.size/4 <= endN {
 		endN = r.size/4 - 1
 	}
@@ -146,7 +150,7 @@ func (r *Resampling) at(t int64) (float64, float64, error) {
 		if err != nil {
 			return 0, 0, err
 		}
-		w := 0.5 + 0.5*math.Cos(2*math.Pi*(tInSrc-float64(n))/(windowSize*2+1))
+		w := 0.5 + 0.5*math.Cos(2*math.Pi*(tInSrc-float64(n))/(float64(windowSize)*2+1))
 		s := sinc(math.Pi*(tInSrc-float64(n))) * w
 		lv += srcL * s
 		rv += srcR * s