diff --git a/.gitignore b/.gitignore
index 66c798d..dd88430 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,34 @@
-Nothing needs to be added to the .gitignore file based on the provided file changes, as they consist only of source code files (.ps1 and .py) without any build artifacts, dependencies, or temporary files that should be ignored.
\ No newline at end of file
+```
+# Python
+__pycache__/
+*.pyc
+*.pyo
+*.pyd
+
+# Dependencies
+venv/
+.venv/
+.env
+.env.local
+*.env.*
+
+# Tests
+.pytest_cache/
+.coverage
+coverage/
+
+# Build artifacts
+build/
+dist/
+*.egg-info/
+
+# Editors
+.vscode/
+.idea/
+*.swp
+*.swo
+
+# System
+.DS_Store
+Thumbs.db
+```
\ No newline at end of file
diff --git a/requirements.txt b/requirements.txt
index 7a2b8ba..705dcd5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,6 +7,7 @@ tensorflow-model-optimization==0.7.5
 librosa==0.10.1
 soundfile==0.12.1
 pyaudio==0.2.11
+sounddevice==0.4.6
 
 # === SCIENTIFIC COMPUTING ===
 numpy==1.24.3
diff --git a/tests/__init__.py b/tests/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/tests/security/__init__.py b/tests/security/__init__.py
new file mode 100644
index 0000000..e69de29