Merge pull request #137 from ReproNim/bf-condaforge-tests

Fixes basic tests execution under conda-forge.

src/reprostim/audio/audiocodes.py

@@ -2,6 +2,8 @@
 #
 # SPDX-License-Identifier: MIT
 
+# optionally: import sounddevice as sd
+import importlib
 import logging
 import os
 import tempfile
@@ -10,11 +12,17 @@
 from enum import Enum
 
 import numpy as np
-import sounddevice as sd
 from reedsolo import RSCodec
 from scipy.io import wavfile
 from scipy.io.wavfile import read, write
 
+sd = (
+    importlib.import_module("sounddevice")
+    if importlib.util.find_spec("sounddevice")
+    else None
+)
+
+
 # setup logging
 logger = logging.getLogger(__name__)
 logger.setLevel(os.environ.get("REPROSTIM_LOG_LEVEL", "INFO"))