getBlobUrl function
Returns the URL of a blob object created from the provided audio path.
Implementation
Future<String> getBlobUrl(String audioPath) async {
final response = await html.HttpRequest.request(
audioPath,
responseType: 'blob',
);
final blob = response.response as html.Blob;
final objectUrl = html.Url.createObjectUrlFromBlob(blob);
return objectUrl;
}