feat: midi不计算mp3节拍器时长

src/helpers/formateMusic.ts

@@ -31,6 +31,10 @@ const hideSpeedWords: string[] = ["中速"];
  * @returns 节拍器的时间
  */
 export const getFixTime = (speed: number) => {
+	// 如果是midi，不计算mp3节拍器时长
+	if (state.isAppPlay) {
+		return 0;
+	}
 	const duration: any = getDuration(state.osmd as unknown as OpenSheetMusicDisplay);
 	let numerator = duration.numerator || 0;
 	let denominator = duration.denominator || 4;