Last active
June 16, 2025 01:23
-
-
Save MaySoMusician/9f97ff428c5beb78465b45c00fbae43a to your computer and use it in GitHub Desktop.
Import each audio file in the directory, normalize it, and export it as a mp3 file
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
#!/usr/bin/env python | |
# -*- coding: utf-8 -*- | |
# cf. https://github.com/audacity/audacity/blob/be8bebce7a91042fedef5b0e5a98f9822d4bc0af/au3/scripts/piped-work/pipe_test.py | |
# cf. https://github.com/audacity/audacity/blob/be8bebce7a91042fedef5b0e5a98f9822d4bc0af/au3/scripts/piped-work/recording_test.py | |
"""Make sure Audacity is running first and that mod-script-pipe is enabled | |
before running this script. | |
Requires Python 2.7 or later. Python 3 is strongly recommended. | |
""" | |
import os | |
import sys | |
import time | |
import glob | |
if sys.platform == 'win32': | |
print("pipe-test.py, running on windows") | |
TONAME = '\\\\.\\pipe\\ToSrvPipe' | |
FROMNAME = '\\\\.\\pipe\\FromSrvPipe' | |
EOL = '\r\n\0' | |
else: | |
print("pipe-test.py, running on linux or mac") | |
TONAME = '/tmp/audacity_script_pipe.to.' + str(os.getuid()) | |
FROMNAME = '/tmp/audacity_script_pipe.from.' + str(os.getuid()) | |
EOL = '\n' | |
print("Write to \"" + TONAME +"\"") | |
if not os.path.exists(TONAME): | |
print(" ..does not exist. Ensure Audacity is running with mod-script-pipe.") | |
sys.exit() | |
print("Read from \"" + FROMNAME +"\"") | |
if not os.path.exists(FROMNAME): | |
print(" ..does not exist. Ensure Audacity is running with mod-script-pipe.") | |
sys.exit() | |
print("-- Both pipes exist. Good.") | |
TOFILE = open(TONAME, 'w', encoding='utf-8', errors='replace') | |
print("-- File to write to has been opened") | |
FROMFILE = open(FROMNAME, 'rt', encoding='utf-8', errors='replace') | |
print("-- File to read from has now been opened too\r\n") | |
def send_command(command): | |
"""Send a single command.""" | |
print("Send: >>> \n"+command) | |
TOFILE.write(command + EOL) | |
TOFILE.flush() | |
def get_response(): | |
"""Return the command response.""" | |
result = '' | |
line = '' | |
while True: | |
result += line | |
line = FROMFILE.readline() | |
if line == '\n' and len(result) > 0: | |
break | |
return result | |
def do_command(command): | |
"""Send one command, and return the response.""" | |
send_command(command) | |
response = get_response() | |
print("Rcvd: <<< \n" + response) | |
return response | |
def quick_test(): | |
"""Quick test to ensure pipe is working.""" | |
do_command("Help: CommandName=Help") | |
def process_files(path_dir): | |
""" | |
For each .wav file in path_dir, import, normalize to 0.2 peak, | |
export to MP3 (2 channels), and remove tracks. | |
""" | |
wav_files = sorted(glob.glob(os.path.join(path_dir, "*.wav"))) | |
if not wav_files: | |
print("No .wav files found in:", path_dir) | |
return | |
for wav_path in wav_files: | |
base_name = os.path.splitext(wav_path)[0] | |
mp3_path = base_name + ".mp3" | |
# Import the .wav file | |
do_command(f'Import2: Filename="{wav_path}"') | |
# Normalize | |
do_command("SelectAll") | |
do_command("Normalize: PeakLevel=-0.2") | |
# Export as .mp3 (2 channels) | |
do_command("SelectAll") | |
do_command(f'Export2: Filename="{mp3_path}" NumChannels=2') | |
# Remove tracks | |
do_command("SelectAll") | |
do_command("RemoveTracks") | |
print(f"Processed: {wav_path}") | |
def main(): | |
path_dir = os.getcwd() # Adjust if you want a different folder | |
quick_test() # Quick check that pipe is responsive (optional) | |
process_files(path_dir) | |
print("All done.") | |
if __name__ == "__main__": | |
main() | |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment