diff --git a/stimuli/audio/backend/sounddevice.py b/stimuli/audio/backend/sounddevice.py
index 7998515..ec73476 100644
--- a/stimuli/audio/backend/sounddevice.py
+++ b/stimuli/audio/backend/sounddevice.py
@@ -7,7 +7,7 @@
 from ...time import Clock, sleep
 from ...utils._checks import check_value, ensure_int
 from ...utils._docs import copy_doc, fill_doc
-from ...utils.logs import warn
+from ...utils.logs import logger, warn
 from ._base import BaseBackend
 
 if TYPE_CHECKING:
@@ -164,7 +164,9 @@ def _ensure_device(device: int | None) -> dict[str, str | int | float]:
     """Ensure the device argument is valid."""
     if device is None:
         idx = sd.default.device["output"]
-        return sd.query_devices()[idx]
+        devices = sd.query_devices()
+        logger.debug("Selected device: %s\nAvailable devices\n%s", idx, devices)
+        return devices[idx]
     device_idx = ensure_int(device, "device")
     devices = sd.query_devices()
     if len(devices) <= device_idx:
diff --git a/stimuli/conftest.py b/stimuli/conftest.py
index 89d85e1..672dfa8 100644
--- a/stimuli/conftest.py
+++ b/stimuli/conftest.py
@@ -2,7 +2,8 @@
 
 from typing import TYPE_CHECKING
 
-from .utils.logs import logger
+from stimuli import set_log_level
+from stimuli.utils.logs import logger
 
 if TYPE_CHECKING:
     import pytest
@@ -20,4 +21,5 @@ def pytest_configure(config: pytest.Config) -> None:
         if warning_line and not warning_line.startswith("#"):
             config.addinivalue_line("filterwarnings", warning_line)
     # setup logging
+    set_log_level("DEBUG")
     logger.propagate = True