diff --git a/Epub/KoeBook.Epub/Services/EpubGenerateService.cs b/Epub/KoeBook.Epub/Services/EpubGenerateService.cs
index 51423a7..3b10b73 100644
--- a/Epub/KoeBook.Epub/Services/EpubGenerateService.cs
+++ b/Epub/KoeBook.Epub/Services/EpubGenerateService.cs
@@ -27,7 +27,8 @@ public async ValueTask<string> GenerateEpubAsync(BookScripts bookScripts, string
             using var reader = new WaveFileReader(ms);
             var tmpMp3Path = Path.Combine(tempDirectory, $"{document.Title}{i}.mp3");
             MediaFoundationEncoder.EncodeToMp3(reader, tmpMp3Path);
-            scriptLine.Audio = new Audio(reader.TotalTime, tmpMp3Path);
+            using var mp3Stream = new Mp3FileReader(tmpMp3Path);
+            scriptLine.Audio = new Audio(mp3Stream.TotalTime, tmpMp3Path);
         }
 
         if (await _createService.TryCreateEpubAsync(document, tempDirectory, cancellationToken).ConfigureAwait(false))
diff --git a/KoeBook.Core/Services/ClaudeAnalyzerService.cs b/KoeBook.Core/Services/ClaudeAnalyzerService.cs
index 3d1dd8a..ba072e2 100644
--- a/KoeBook.Core/Services/ClaudeAnalyzerService.cs
+++ b/KoeBook.Core/Services/ClaudeAnalyzerService.cs
@@ -174,10 +174,15 @@ private static (Character[], Dictionary<string, string>) ExtractCharacterList(st
                                     var voiceIdLine = zippedLine.First.AsSpan();
                                     voiceIdLine = voiceIdLine[(voiceIdLine.IndexOf(' ') + 2)..];//cまで無視
                                     voiceIdLine = voiceIdLine[..voiceIdLine.IndexOf(' ')];// 二人以上話す時には先頭のものを使う
+                                    if (voiceIdLine[^1] == '.')// idに"."がつくことがあるので削除する
+                                    {
+                                        voiceIdLine = voiceIdLine[..^1];
+                                    }
                                     if (characterId2Name.TryGetValue(voiceIdLine.ToString(), out var characterName))
                                     {
                                         zippedLine.Second.Character = characterName;
                                     }
+                                    else { throw new EbookException(ExceptionType.ClaudeTalkerAndStyleSettingFailed); }
                                     return 0;
                                 }).Count();
         if (voiceIdLinesCount != scriptLines.Length)