diff --git a/src/Core/AudioFileMeta.cs b/src/Core/AudioFileMeta.cs
index 4175ab5..4ffaf2a 100644
--- a/src/Core/AudioFileMeta.cs
+++ b/src/Core/AudioFileMeta.cs
@@ -54,6 +54,9 @@ public class AudioFileMeta
     
 #endregion
 
+    ///<summary>声道配置</summary>
+    public string? ChannelLayout { get; set; }
+
     /// <summary>短ID，便于人工识别或显示的简短标识</summary>
     public string? ShortId { get; set; }
 
@@ -114,10 +117,14 @@ public class AudioFileMeta
     public string? Manufacturer { get; set; }
 
     /// <summary>来源方，原始创建者或来源机构</summary>
-    public string? Originator { get; set; }
+    public string? BwfOriginator { get; set; }
 
     /// <summary>来源引用，原始来源的参考编号</summary>
-    public string? OriginatorRef { get; set; }
+    public string? BwfOriginatorRef { get; set; }
+    
+    public DateTime? BwfDate { get; set; }
+    
+    public string? BwfDescription { get; set; }
 
     /// <summary>项目名称，所属制作项目</summary>
     public string? ProjectName { get; set; }
diff --git a/src/Core/AudioFileMetaValidator.cs b/src/Core/AudioFileMetaValidator.cs
index 6285db1..6b556ae 100644
--- a/src/Core/AudioFileMetaValidator.cs
+++ b/src/Core/AudioFileMetaValidator.cs
@@ -32,7 +32,6 @@ public class AudioFileMetaValidator
 
         // 验证数值字段
         ValidatePositiveValue(meta.Duration, "Duration", errors);
-        ValidatePositiveValue(meta.TotalSamples, "TotalSamples", errors);
         ValidatePositiveValue(meta.BitDepth, "BitDepth", errors);
         ValidatePositiveValue(meta.Channels, "Channels", errors);
         ValidatePositiveValue(meta.SampleRate, "SampleRate", errors);
diff --git a/src/Core/AudioLibraryService.cs b/src/Core/AudioLibraryService.cs
deleted file mode 100644
index 5dfbaf3..0000000
--- a/src/Core/AudioLibraryService.cs
+++ /dev/null
@@ -1,125 +0,0 @@
-using System.Security.Cryptography;
-
-namespace OCES.Resonance.Core;
-
-/// <summary>
-/// 音频库管理服务，协调扫描、读取和入库的完整流程
-/// </summary>
-public class AudioLibraryService
-{
-    readonly AudioFileScanner _scanner = new();
-    readonly AudioMetadataReader _metadataReader = new();
-
-    /// <summary>
-    /// 扫描目录并将结果添加到数据库
-    /// </summary>
-    /// <param name="directoryPath">要扫描的目录路径</param>
-    /// <param name="databaseName">数据库名称（不含扩展名）</param>
-    /// <param name="skipExisting">是否跳过已存在的文件</param>
-    /// <returns>扫描结果统计</returns>
-    public async Task<ScanResult> ScanAndImportToLibrary(
-        string directoryPath, 
-        string databaseName = "default",
-        bool skipExisting = true)
-    {
-        var result = new ScanResult
-        {
-            TotalFiles = 0,
-            SuccessCount = 0,
-            SkipCount = 0,
-            ErrorCount = 0,
-            Errors = [],
-        };
-
-        // 初始化数据库
-        Database.InitializeDatabase();
-
-        // 扫描所有音频文件
-        List<string> audioFiles = this._scanner.ScanDirectory(directoryPath).ToList();
-        result.TotalFiles = audioFiles.Count;
-
-        if (audioFiles.Count == 0)
-        {
-            return result;
-        }
-
-        List<AudioFileMeta> metadataList = [];
-
-        // 读取每个文件的元数据
-        foreach (string filePath in audioFiles)
-        {
-            try
-            {
-                // 计算 MD5 用于查重
-                string md5 = CalculateMd5ForFile(filePath);
-
-                // 读取元数据
-                AudioFileMeta metadata = this._metadataReader.ReadMetadata(filePath);
-                metadataList.Add(metadata);
-                result.SuccessCount++;
-            }
-            catch (Exception ex)
-            {
-                result.ErrorCount++;
-                result.Errors.Add($"读取失败 {filePath}: {ex.Message}");
-            }
-        }
-
-        // 批量入库
-        if (metadataList.Count <= 0)
-            return await Task.FromResult(result);
-        {
-            try
-            {
-                Database.AddEntries(metadataList);
-            }
-            catch (Exception ex)
-            {
-                result.Errors.Add($"批量入库失败：{ex.Message}");
-                throw;
-            }
-        }
-
-        return await Task.FromResult(result);
-    }
-
-    /// <summary>
-    /// 计算文件 MD5（用于查重，不创建完整 AudioFileMeta 对象）
-    /// </summary>
-    private static string CalculateMd5ForFile(string filePath)
-    {
-        using MD5 md5 = MD5.Create();
-        using FileStream stream = File.OpenRead(filePath);
-        byte[] hash = md5.ComputeHash(stream);
-        return Convert.ToHexString(hash);
-    }
-}
-
-/// <summary>
-/// 扫描结果统计
-/// </summary>
-public class ScanResult
-{
-    /// <summary>扫描到的文件总数</summary>
-    public int TotalFiles { get; set; }
-
-    /// <summary>成功入库的文件数</summary>
-    public int SuccessCount { get; set; }
-
-    /// <summary>跳过的文件数（已存在）</summary>
-    public int SkipCount { get; set; }
-
-    /// <summary>读取失败的文件数</summary>
-    public int ErrorCount { get; set; }
-
-    /// <summary>错误详情列表</summary>
-    public List<string> Errors { get; set; } = [];
-
-    /// <summary>
-    /// 获取人类可读的统计报告
-    /// </summary>
-    public string GetSummary()
-    {
-        return $"扫描完成：共 {TotalFiles} 个文件，成功 {SuccessCount} 个，跳过 {SkipCount} 个，失败 {ErrorCount} 个";
-    }
-}
diff --git a/src/Core/AudioMetadataReader.cs b/src/Core/AudioMetadataReader.cs
index f56fdaf..e3ba01f 100644
--- a/src/Core/AudioMetadataReader.cs
+++ b/src/Core/AudioMetadataReader.cs
@@ -62,8 +62,8 @@ public class AudioMetadataReader
             
             // BWF 特定字段 (通过附加数据获取)
             CodingHistory = GetBwfField(track, "CodingHistory"),
-            Originator = GetBwfField(track, "Originator"),
-            OriginatorRef = GetBwfField(track, "OriginatorRef"),
+            BwfOriginator = GetBwfField(track, "BwfOriginator"),
+            BwfOriginatorRef = GetBwfField(track, "BwfOriginatorRef"),
         };
 
         return meta;
diff --git a/src/Core/Database.cs b/src/Core/Database.cs
index d1c00e2..fff52a5 100644
--- a/src/Core/Database.cs
+++ b/src/Core/Database.cs
@@ -141,7 +141,7 @@ public static class Database
                     @Bpm, @FrameRate, @Timecode, @Description, @Category, @Subcategory,
                     @CatId, @CategoryFull, @Genre, @Style, @Mood, @Keywords, @Rating,
                     @Artist, @Composer, @Designer, @Recordist, @Publisher, @Manufacturer,
-                    @Originator, @OriginatorRef, @ProjectName, @Library, @CdTitle,
+                    @BwfOriginator, @BwfOriginatorRef, @ProjectName, @Library, @CdTitle,
                     @TrackTitle, @Episode, @Scene, @Take, @Tape, @CueNumber, @SyncPoint,
                     @ReleaseDate, @TrackYear, @IsEdited, @IsSplit, @Location, @Group,
                     @Markers, @Comments, @Notes, @Copyright, @CodingHistory, @Microphone,
@@ -192,7 +192,7 @@ public static class Database
                     @Bpm, @FrameRate, @Timecode, @Description, @Category, @Subcategory,
                     @CatId, @CategoryFull, @Genre, @Style, @Mood, @Keywords, @Rating,
                     @Artist, @Composer, @Designer, @Recordist, @Publisher, @Manufacturer,
-                    @Originator, @OriginatorRef, @ProjectName, @Library, @CdTitle,
+                    @BwfOriginator, @BwfOriginatorRef, @ProjectName, @Library, @CdTitle,
                     @TrackTitle, @Episode, @Scene, @Take, @Tape, @CueNumber, @SyncPoint,
                     @ReleaseDate, @TrackYear, @IsEdited, @IsSplit, @Location, @Group,
                     @Markers, @Comments, @Notes, @Copyright, @CodingHistory, @Microphone,