fix: typescript errors

Author: urish

src/AudioPlayer.ts

@@ -11,8 +11,7 @@ export class AudioPlayer {
 
   constructor(
     private readonly sampleRate: number,
-    private readonly fps: number,
-    stateListener = null,
+    stateListener: null | ((state: AudioContextState) => void) = null,
     private readonly bufferSize: number = 200,
   ) {
     this.audioCtx = new AudioContext({ sampleRate: sampleRate, latencyHint: 'interactive' });

src/index.ts

@@ -99,9 +99,8 @@ function getAudioSignal() {
   return (uio_out & uio_oe) >> 7;
 }
 
-const expectedFPS = 60;
 const sampleRate = 192_000; // 192 kHz -- higher number gives a better quality
-const audioPlayer = new AudioPlayer(sampleRate, expectedFPS, () => {
+const audioPlayer = new AudioPlayer(sampleRate, () => {
   if (audioPlayer.isRunning()) inputButtons[audioButtonIndex].classList.add('active');
   else inputButtons[audioButtonIndex].classList.remove('active');
 });