Fallback to wav if ogg is not supported, fix circles animation

public/src/js/circle.js

@@ -31,11 +31,9 @@ class Circle{
 	getLastFrame(){
 		return this.lastFrame
 	}
-	incFrame(){
-		this.lastFrame += 20
-	}
-	animate(){
+	animate(ms){
 		this.animating = true
+		this.animT = ms
 	}
 	isAnimated(){
 		return this.animating
@@ -43,9 +41,6 @@ class Circle{
 	getAnimT(){
 		return this.animT
 	}
-	incAnimT(){
-		this.animT += 0.05
-	}
 	getPlayed(){
 		return this.isPlayed
 	}