diff --git a/requirements.txt b/requirements.txt
index ae172ba..d496865 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,6 @@
 pyaudio
 SpeechRecognition
+sounddevice
 --extra-index-url https://download.pytorch.org/whl/cu116
 torch
-git+https://github.com/openai/whisper.git
\ No newline at end of file
+git+https://github.com/openai/whisper.git
diff --git a/transcribe_demo.py b/transcribe_demo.py
index 14ec910..34cdc5b 100644
--- a/transcribe_demo.py
+++ b/transcribe_demo.py
@@ -6,6 +6,7 @@
 import speech_recognition as sr
 import whisper
 import torch
+import sounddevice
 
 from datetime import datetime, timedelta
 from queue import Queue
@@ -32,7 +33,6 @@ def main():
                             help="Default microphone name for SpeechRecognition. "
                                  "Run this with 'list' to view available Microphones.", type=str)
     args = parser.parse_args()
-
     # The last time a recording was retrieved from the queue.
     phrase_time = None
     # Current raw audio bytes.