diff --git a/telebot/__init__.py b/telebot/__init__.py
index d48d97e..26237a2 100644
--- a/telebot/__init__.py
+++ b/telebot/__init__.py
@@ -393,7 +393,7 @@ class TeleBot:
             apihelper.send_photo(self.token, chat_id, photo, caption, reply_to_message_id, reply_markup,
                                  disable_notification))
 
-    def send_audio(self, chat_id, audio, duration=None, performer=None, title=None, reply_to_message_id=None,
+    def send_audio(self, chat_id, audio, caption=None, duration=None, performer=None, title=None, reply_to_message_id=None,
                    reply_markup=None, disable_notification=None, timeout=None):
         """
         Use this method to send audio files, if you want Telegram clients to display them in the music player. Your audio must be in the .mp3 format.
@@ -407,10 +407,10 @@ class TeleBot:
         :return: Message
         """
         return types.Message.de_json(
-            apihelper.send_audio(self.token, chat_id, audio, duration, performer, title, reply_to_message_id,
+            apihelper.send_audio(self.token, chat_id, audio, caption, duration, performer, title, reply_to_message_id,
                                  reply_markup, disable_notification, timeout))
 
-    def send_voice(self, chat_id, voice, duration=None, reply_to_message_id=None, reply_markup=None,
+    def send_voice(self, chat_id, voice, caption=None, duration=None, reply_to_message_id=None, reply_markup=None,
                    disable_notification=None, timeout=None):
         """
         Use this method to send audio files, if you want Telegram clients to display the file as a playable voice message.
@@ -422,7 +422,7 @@ class TeleBot:
         :return: Message
         """
         return types.Message.de_json(
-            apihelper.send_voice(self.token, chat_id, voice, duration, reply_to_message_id, reply_markup,
+            apihelper.send_voice(self.token, chat_id, voice, caption, duration, reply_to_message_id, reply_markup,
                                  disable_notification, timeout))
 
     def send_document(self, chat_id, data, reply_to_message_id=None, caption=None, reply_markup=None,
diff --git a/tests/test_telebot.py b/tests/test_telebot.py
index b49e7e1..b9b460c 100644
--- a/tests/test_telebot.py
+++ b/tests/test_telebot.py
@@ -193,7 +193,7 @@ class TestTeleBot:
     def test_send_audio(self):
         file_data = open('./test_data/record.mp3', 'rb')
         tb = telebot.TeleBot(TOKEN)
-        ret_msg = tb.send_audio(CHAT_ID, file_data, 1, 'eternnoir', 'pyTelegram')
+        ret_msg = tb.send_audio(CHAT_ID, file_data, 1, performer='eternnoir', title='pyTelegram')
         assert ret_msg.content_type == 'audio'
         assert ret_msg.audio.performer == 'eternnoir'
         assert ret_msg.audio.title == 'pyTelegram'
@@ -201,7 +201,7 @@ class TestTeleBot:
     def test_send_audio_dis_noti(self):
         file_data = open('./test_data/record.mp3', 'rb')
         tb = telebot.TeleBot(TOKEN)
-        ret_msg = tb.send_audio(CHAT_ID, file_data, 1, 'eternnoir', 'pyTelegram', disable_notification=True)
+        ret_msg = tb.send_audio(CHAT_ID, file_data, 1, performer='eternnoir', title='pyTelegram', disable_notification=True)
         assert ret_msg.content_type == 'audio'
         assert ret_msg.audio.performer == 'eternnoir'
         assert ret_msg.audio.title == 'pyTelegram'