// Try common extensions in order of preference
	extensions := []string{".WAV", ".wav", ".Wav"}
	for _, ext := range extensions {
		path := filepath.Join(dir, baseName+ext)
		if _, err := os.Stat(path); err == nil {
			return path

	entries, err := os.ReadDir(dir)
	if err != nil {
		return ""
	}
	for _, entry := range entries {
		if entry.IsDir() {
			continue
		}
		name := entry.Name()
		ext := filepath.Ext(name)
		nameNoExt := strings.TrimSuffix(name, ext)
		if nameNoExt == baseName && strings.EqualFold(ext, ".wav") {
			return filepath.Join(dir, name)

	}
	// Try case-insensitive glob as fallback (e.g., .Wav, .wAv, etc.)
	pattern := filepath.Join(dir, baseName+".[wW][aA][vV]")
	matches, _ := filepath.Glob(pattern)
	if len(matches) > 0 {
		return matches[0] // Return first match

	return "" // Not found

	return ""