make linter happy

Author: Titanium2099

src/SoundPlayer.js

@@ -255,6 +255,7 @@ class SoundPlayer extends EventEmitter {
      *
      * If the sound is already playing it will stop playback with a quick fade
      * out.
+     * @param {number} startSeconds - start position of sound.
      */
     play (startSeconds) {
         if (this.isStarting) {
@@ -273,7 +274,7 @@ class SoundPlayer extends EventEmitter {
             this.initialize();
         }
 
-        if (typeof startSeconds === "number") {
+        if (typeof startSeconds === 'number') {
             this.outputNode.start(0, startSeconds);
         } else {
             this.outputNode.start();

src/effects/VolumeEffect.js

@@ -37,14 +37,15 @@ class VolumeEffect extends Effect {
      * Set the effects value.
      * @private
      * @param {number} value - new value to set effect to
+     * @param {number} additionalDecay - control strength of decay
      */
     _set (value, additionalDecay) {
         this.value = value;
 
         const {gain} = this.outputNode;
         const {currentTime, DECAY_DURATION} = this.audioEngine;
 
-        if (typeof additionalDecay === "number") {
+        if (typeof additionalDecay === 'number') {
             gain.linearRampToValueAtTime(value / 100, currentTime + (DECAY_DURATION + additionalDecay));
             return;
         }