wav_to_flac.py

!pip install pydub
!pip install tqdm
!pip install mutagen

from pydub import AudioSegment
from pathlib import Path
from tqdm import tqdm
from mutagen.flac import FLAC

# Base folder containing WAV files
base_folder = Path(r"K:\Audio\_WAV EAC")
# Output folder for FLAC files
output_base = Path(r"K:\Audio\_FLAC")
output_base.mkdir(exist_ok=True)

# Loop through all folders under base folder
for album_folder in base_folder.iterdir():
    if not album_folder.is_dir():
        continue

    try:
        artist, album = album_folder.name.split(" - ", 1)
    except ValueError:
        print(f"Skipping folder {album_folder}: folder name format not 'Artist - Album'")
        continue

    # Find all WAV files in this folder
    wav_files = list(album_folder.glob("*.wav"))
    if not wav_files:
        continue

    for wav_file in tqdm(wav_files, desc=f"Processing {album_folder.name}"):
        file_stem = wav_file.stem  # e.g., "03_Romeo and Juliet"
        if len(file_stem) < 3 or "_" not in file_stem:
            print(f"Skipping {wav_file}: filename format not '<track>_<title>'")
            continue

        track_num = file_stem[:2]
        title = file_stem[3:]

        # Build output path
        output_folder = output_base / f"{artist} - {album}"
        output_folder.mkdir(parents=True, exist_ok=True)
        output_path = output_folder / f"{track_num} {title}.flac"

        # Convert WAV to FLAC
        audio = AudioSegment.from_wav(str(wav_file))
        audio.export(str(output_path), format="flac")

        # Add metadata tags
        flac_file = FLAC(str(output_path))
        flac_file["artist"] = artist
        flac_file["album"] = album
        flac_file["tracknumber"] = track_num
        flac_file["title"] = title
        flac_file.save()

    print(f"Completed: {album_folder.name}")

print("All conversions complete!")