diff --git a/batdetect2/utils/audio_utils.py b/batdetect2/utils/audio_utils.py
index 134fee7..a2cfe44 100644
--- a/batdetect2/utils/audio_utils.py
+++ b/batdetect2/utils/audio_utils.py
@@ -9,7 +9,6 @@ import torch
 import audioread
 import os 
 import soundfile as sf
-import io
 
 from batdetect2.detector import parameters
 
@@ -17,7 +16,7 @@ from . import wavfile
 
 __all__ = [
     "load_audio",
-    "load_audio_data",
+    "load_audio_and_samplerate",
     "generate_spectrogram",
     "pad_audio",
 ]
@@ -174,10 +173,10 @@ def load_audio(
         ValueError: If the audio file is stereo.
 
     """
-    sample_rate, audio_data, _ = load_audio_data(path, time_exp_fact, target_samp_rate, scale, max_duration)
+    sample_rate, audio_data, _ = load_audio_and_samplerate(path, time_exp_fact, target_samp_rate, scale, max_duration)
     return sample_rate, audio_data
 
-def load_audio_data(
+def load_audio_and_samplerate(
     path:  Union[
         str, int, os.PathLike[Any], sf.SoundFile, audioread.AudioFile, BinaryIO
     ],
@@ -200,6 +199,7 @@ def load_audio_data(
     Returns:
         sampling_rate: The sampling rate of the audio.
         audio_raw: The audio signal in a numpy array.
+        file_sampling_rate: The original sampling rate of the audio
 
     Raises:
         ValueError: If the audio file is stereo.
diff --git a/batdetect2/utils/detector_utils.py b/batdetect2/utils/detector_utils.py
index f6e5776..93155b1 100644
--- a/batdetect2/utils/detector_utils.py
+++ b/batdetect2/utils/detector_utils.py
@@ -2,7 +2,6 @@ import json
 import os
 from typing import Any, Iterator, List, Optional, Tuple, Union, BinaryIO
 
-import librosa
 import numpy as np
 import pandas as pd
 import torch
@@ -759,6 +758,9 @@ def process_file(
 
     config : ProcessingConfiguration
         Configuration for processing.
+    
+    file_id: Optional[str],
+        Give the data an id. Defaults to the filename if path is a string. Otherwise
 
     Returns
     -------
@@ -773,7 +775,7 @@ def process_file(
     spec_slices = []
 
     # load audio file
-    sampling_rate, audio_full, file_samp_rate = au.load_audio_data(
+    sampling_rate, audio_full, file_samp_rate = au.load_audio_and_samplerate(
         path,
         time_exp_fact=config.get("time_expansion", 1) or 1,
         target_samp_rate=config["target_samp_rate"],
diff --git a/tests/test_audio_utils.py b/tests/test_audio_utils.py
index a6c08fb..ed64b15 100644
--- a/tests/test_audio_utils.py
+++ b/tests/test_audio_utils.py
@@ -146,9 +146,9 @@ def test_load_audio_using_bytesio():
     with open(path, "rb") as f:
         data = io.BytesIO(f.read())
     
-    sample_rate, audio_data, file_sample_rate = audio_utils.load_audio_data(data, time_exp_fact=1, target_samp_rate=parameters.TARGET_SAMPLERATE_HZ)
+    sample_rate, audio_data, file_sample_rate = audio_utils.load_audio_and_samplerate(data, time_exp_fact=1, target_samp_rate=parameters.TARGET_SAMPLERATE_HZ)
 
-    expected_sample_rate, expected_audio_data, exp_file_sample_rate = audio_utils.load_audio_data(path, time_exp_fact=1, target_samp_rate=parameters.TARGET_SAMPLERATE_HZ)
+    expected_sample_rate, expected_audio_data, exp_file_sample_rate = audio_utils.load_audio_and_samplerate(path, time_exp_fact=1, target_samp_rate=parameters.TARGET_SAMPLERATE_HZ)
 
     assert expected_sample_rate == sample_rate
     assert exp_file_sample_rate == file_sample_rate