新增类型注释

src/utils/audio.ts

@@ -5,14 +5,14 @@ import request from '@/utils/upLoadRequest';
 // import audioConversion from '@/worker/audioConversion.js?worker';
 
 export const createAudioContext = () => {
-  return new (window.AudioContext || window.webkitAudioContext)();
+  return new window.AudioContext();
 };
 
 const audioContext = createAudioContext();
 
 // 获取文件的buffer
 export const getFileBuffer = (url: string) => {
-  return new Promise<Blob>((resolve, reject) => {
+  return new Promise<AudioBuffer>((resolve, reject) => {
     request
       .get(url, {
         responseType: 'arraybuffer',