Audio normalization script

nulrdcscripts/tools/AudioNormalizer/README.md

@@ -0,0 +1,19 @@
+# General Information
+
+Version Date: 6/21/2024
+
+Document Owner: Sophia Francis
+
+Software Used: ffmpeg-normalizer
+
+# Description
+This is a script that allows for the normalization of audio levels in AV files following our AV procedures for normalizing audio.
+
+# Installation Instructions
+This script runs through poetry and can be installed and updated from it. 
+
+## Usage
+To run the script. From nul-rdc-scripts
+```
+poetry run norm -i \path\to\input'
+```

nulrdcscripts/tools/AudioNormalizer/main.py

@@ -0,0 +1,49 @@
+import os
+import subprocess
+import progressbar
+from nulrdcscripts.tools.AudioNormalizer.params import args
+
+
+
+def normalizerAudio (input_file,norm_file):
+    ffmpeg_normalize_path = args.ffmpeg_norm_path
+    command = ffmpeg_normalize_path + ' '+ input_file + ' '+  "-o" + ' '+  norm_file + ' '+  "-t -18 --keep-loudness-range-target -tp -1 -c:a pcm_s16l2 -ar 44100"
+    subprocess.run(command)
+
+def normalizerVideo (input_file,norm_file):
+    ffmpeg_normalize_path = args.ffmpeg_norm_path
+    command = ffmpeg_normalize_path + ' ' + input_file + ' '+ "-o"+ ' '+ norm_file+ ' '+"-t -18 --keep-loudness-range-target -tp -1 -c:a aac -b:a 256k -ar 48000"
+    subprocess.run(command)
+
+
+def single(input_path):
+    filename, ext = os.path.splitext(input_path)
+    output_path = filename + "_normalized" + ext
+    if ext == ".wav":
+        normalizerAudio(input_path,output_path)
+    elif ext == ".mp4":
+        normalizerVideo(input_path,output_path)
+
+def batch(input_path):
+    ext = ["_a.wav","_a.mp4"]
+    for file in os.listdir(input_path):
+        if file.endswith(".mp4.md5"):
+            pass
+        elif file.endswith(ext):
+            single(file)
+
+def run():
+    input_path = os.path.normpath(args.input_path)
+    fileType = os.path.isdir(input_path)
+    if fileType:
+        batch(input_path)
+    else:
+        single(input_path)
+
+def main():
+        run()
+
+main()
+
+
+

nulrdcscripts/tools/AudioNormalizer/params.py

@@ -0,0 +1,22 @@
+import argparse
+
+parser = argparse.ArgumentParser()
+parser.add_argument(
+    "-i",
+    dest="input_path",
+    action = "store",
+    type = str,
+    required=True, 
+    help = "Enter your input_path to the file or folder of files that you want to normalize"
+)
+
+parser.add_argument(
+    "-ffmpeg-norm",
+    dest="ffmpeg_norm_path",
+    default="ffmpeg-normalize",
+    action="store",
+    type=str,
+
+) 
+
+args = parser.parse_args()

pyproject.toml

@@ -14,6 +14,7 @@ readme = "README.md"
 
 [tool.poetry.dependencies]
 python = "^3.10"
+progressbar2 = "^4.4.2"
 
 [tool.poetry.dev-dependencies]
 
@@ -23,6 +24,7 @@ vproc = 'nulrdcscripts.vproc.vproc:main'
 ingest = 'nulrdcscripts.ingest.ingest:main'
 embedExtract = 'nulrdcscripts.tools.EmbedExtract.runfile:main'
 ffplaywindow = 'nulrdcscripts.tools.ffplaywindow.main:main'
+norm = 'nulrdcscripts.tools.AudioNormalizer.main:main'
 [build-system]
 requires = ["poetry-core>=1.0.0"]
 build-backend = "poetry.core.masonry.api"