WAV ⇄ FLAC Converter

Main Features

• WAV → FLAC conversion
• FLAC → WAV conversion
• Metadata preservation (title, artist, album, date, genre, track number, comment, album artist, composer)
• Cover art image preservation
• Sampling frequency unchanged from source file
• Automatic bit depth detection (16bit/24bit/32bit)
• Drag & drop operation support

Distribution Files

• wav_alac_converter.exe
• wav_alac_converter_readme.html
• wav_alac_converter_readme_en.html
• ffmpeg_install.bat

System Requirements

• OS: Windows 10 / 11 (64-bit)
• FFmpeg installation (can be easily installed using the included ffmpeg_install.bat)

How to Use

1. Drag and drop WAV or FLAC files you want to convert onto wav_alac_converter.exe (or its shortcut)
2. When conversion is complete, the converted file will be created in the same folder as the original file
3. Multiple files can be dropped at once

Conversion Details

WAV → FLAC Conversion

• Compression level: 0.625 (standard FLAC compression ratio)
• Bit depth: Maintains original WAV file bit depth (16bit/24bit/32bit)
• Metadata: Read from RIFF INFO chunk and ID3v2 tags, converted to FLAC tags
• Cover art: Obtained from ID3v2 embedded images in WAV file, or image files in the same folder

FLAC → WAV Conversion

• Bit depth: Maintains original FLAC file bit depth (16bit/24bit/32bit)
• Metadata: Read from FLAC tags, written to RIFF INFO chunk and ID3v2 tags
• Cover art: FLAC embedded image is embedded in WAV file's ID3v2 tag

Supported Metadata

Metadata Item	FLAC Tag	RIFF INFO	ID3v2 Frame
Title	title	INAM	TIT2
Artist	artist	IART	TPE1
Album	album	IPRD	TALB
Date	date	ICRD	TDRC
Genre	genre	IGNR	TCON
Track Number	tracknumber	ITRK	TRCK
Comment	comment	ICMT	COMM
Album Artist	albumartist	IAAR	TPE2
Composer	composer	IMUS	TCOM

Output File Names

• Basic: original_filename.new_extension
• If file with same name exists: original_filename_converted.new_extension

Error Handling

• If file is not found, an error message for that file will be displayed
• Unsupported format files will be skipped
• If an error occurs during conversion, an error message will be displayed and processing will continue with the next file

Technical Specifications

WAV File Metadata Structure

• RIFF INFO Chunk: Standard metadata format for WAV files
• ID3v2 Tags: Supports more metadata and cover art embedding
• This script supports both formats for reading and writing

FLAC File Metadata Structure

• Vorbis Comments: FLAC standard metadata format
• Picture Block: Cover art image embedding

Limitations

• Supported formats: WAV and FLAC only
• Batch conversion of multiple files is possible, but folder drag & drop is not supported
• Metadata encoding is UTF-8
• Cover art image formats support JPEG and PNG

License

This script is free to use and modify.