--- __init__-old.py	2019-01-27 11:18:19.560918050 +0700
+++ __init__.py	2019-01-24 09:27:17.057865917 +0700
@@ -262,6 +262,14 @@
 
     return 0
 
+def percentage(currentval, maxval):
+    return 100 * currentval / float(maxval)
+
+
+def output_progress(listener_progress, str_task, progress_percent):
+    if listener_progress != None:
+        listener_progress(str_task,progress_percent)
+
 
 def generate_subtitles(
     source_path,
@@ -271,6 +279,7 @@
     dst_language=DEFAULT_DST_LANGUAGE,
     subtitle_file_format=DEFAULT_SUBTITLE_FORMAT,
     api_key=None,
+    listener_progress=None,
 ):
     audio_filename, audio_rate = extract_audio(source_path)
 
@@ -284,21 +293,28 @@
     transcripts = []
     if regions:
         try:
-            widgets = ["Converting speech regions to FLAC files: ", Percentage(), ' ', Bar(), ' ',
+            str_task_1 = "Converting speech regions to FLAC files: "
+            widgets = [str_task_1, Percentage(), ' ', Bar(), ' ',
                        ETA()]
-            pbar = ProgressBar(widgets=widgets, maxval=len(regions)).start()
+            len_regions = len(regions)
+            pbar = ProgressBar(widgets=widgets, maxval=len_regions).start()
             extracted_regions = []
             for i, extracted_region in enumerate(pool.imap(converter, regions)):
                 extracted_regions.append(extracted_region)
                 pbar.update(i)
+                progress_percent= percentage(i, len_regions)
+                output_progress(listener_progress,str_task_1,progress_percent)
             pbar.finish()
 
-            widgets = ["Performing speech recognition: ", Percentage(), ' ', Bar(), ' ', ETA()]
+            str_task_2 = "Performing speech recognition: "
+            widgets = [str_task_2, Percentage(), ' ', Bar(), ' ', ETA()]
             pbar = ProgressBar(widgets=widgets, maxval=len(regions)).start()
 
             for i, transcript in enumerate(pool.imap(recognizer, extracted_regions)):
                 transcripts.append(transcript)
                 pbar.update(i)
+                progress_percent= percentage(i, len_regions)
+                output_progress(listener_progress,str_task_2,progress_percent)
             pbar.finish()
 
             if not is_same_language(src_language, dst_language):
@@ -349,4 +365,5 @@
 
 
 if __name__ == '__main__':
+    multiprocessing.freeze_support()
     sys.exit(main())