···

       
22
       
22
       
 
       
  let mediaStream: MediaStream | null = null;

     

       
23
       
23
       
 
       
  let audioChunks: Blob[] = [];

     

       
24
       
24
       
 
       


     

       
25
       
25
       
-
       
  const preferredMimeType = "audio/webm;codecs=opus";

     

       
26
       
26
       
-
       
  const fallbackMimeType = "audio/webm";

     

       
25
       
25
       
+
       
  const isSafari =

     

       
26
       
26
       
+
       
    typeof navigator !== "undefined" &&

     

       
27
       
27
       
+
       
    navigator.vendor &&

     

       
28
       
28
       
+
       
    navigator.vendor.indexOf("Apple") > -1;

     

       
29
       
29
       
+
       


     

       
30
       
30
       
+
       
  const preferredMimeType = isSafari

     

       
31
       
31
       
+
       
    ? 'audio/mp4; codecs="mp4a.40.2"'

     

       
32
       
32
       
+
       
    : "audio/webm;codecs=opus";

     

       
33
       
33
       
+
       
  const fallbackMimeType = isSafari ? "audio/mp4" : "audio/webm";

     

       
27
       
34
       
 
       


     

       
28
       
35
       
 
       
  const startRecording = async () => {

     

       
29
       
36
       
 
       
    try {