diff --git a/NVEnc/NVEnc.en.lng b/NVEnc/NVEnc.en.lng
index 51bd0feb..f5d652e8 100644
--- a/NVEnc/NVEnc.en.lng
+++ b/NVEnc/NVEnc.en.lng
@@ -133,7 +133,21 @@ AUO_ERR_VIDENC_VERSION4=Version of exe file
 AUO_ERR_AFS_GET_FRAME=Failed to get frame from Aviutl.
 AUO_ERR_OPEN_WAVFILE=Failed to open wav file.
 AUO_ERR_NO_WAVFILE=Could not find wav file. Audio encoding has failed.
-AUO_ERR_AUDIO_LENGTH_DIFFERENT1=Audio length seems to differ from video length.
+AUO_ERR_AUDIO_LENGTH_EXEDIT1=Audio track in exedit and Aviutl might be conflicting.
+AUO_ERR_AUDIO_LENGTH_EXEDIT2=In order to make audio from exedit active again, please abort output and
+AUO_ERR_AUDIO_LENGTH_EXEDIT3=try switching scene in exedit, and retry output again.
+AUO_ERR_AUDIO_LENGTH_EXEDIT4= (For example, switch scene to and from like "Root" �¨ "Scene1" �¨ "Root").
+AUO_ERR_AUDIO_LENGTH_EXEDIT5=However when audio samplerate in exedit is different from the original audio,
+AUO_ERR_AUDIO_LENGTH_EXEDIT6=this problem may not be solved.
+AUO_ERR_AUDIO_LENGTH_EXEDIT7=Please note that audio track should be read only in exedit when using exedit.\n
+AUO_ERR_AUDIO_LENGTH_ZERO1=There is no audio data to be written (Audio length is zero).\n
+AUO_ERR_AUDIO_LENGTH_ZERO2=If you do not intentionally output audio, please check "No audio" in the "Audio compression" box  
+AUO_ERR_AUDIO_LENGTH_ZERO3=at the bottom of the output file dialog of the plugin output.
+AUO_ERR_AUDIO_LENGTH_PROMPT_YESNO1=Will you abort output?
+AUO_ERR_AUDIO_LENGTH_PROMPT_YESNO2=[ Yes ] ... Abort output
+AUO_ERR_AUDIO_LENGTH_PROMPT_YESNO3=[ No  ] ... Ignore warning and continue output
+AUO_ERR_AUDIO_LENGTH_DIFFERENT1=Audio length seems to differ from video length. (%.1f�“ > %.1f�“)
+AUO_ERR_AUDIO_LENGTH_DIFFERENT1_2=Audio length seems to differ from video length. 
 AUO_ERR_AUDIO_LENGTH_DIFFERENT2=Video: %d:%02d:%02d.%03d, Audio: %d:%02d:%02d.%03d
 AUO_ERR_AUDIO_LENGTH_DIFFERENT3=Audio length has been adjusted to match video length.
 AUO_ERR_AUDIO_LENGTH_DIFFERENT4=Audio track in exedit and Aviutl might be conflicting.
diff --git a/NVEnc/NVEnc.ja.lng b/NVEnc/NVEnc.ja.lng
index 9e51188c..b8aec0c1 100644
--- a/NVEnc/NVEnc.ja.lng
+++ b/NVEnc/NVEnc.ja.lng
@@ -132,7 +132,21 @@ AUO_ERR_VIDENC_VERSION4=実行ファイル��ージョン
 AUO_ERR_AFS_GET_FRAME=Aviutl�ら�フレーム読�込��失敗����。
 AUO_ERR_OPEN_WAVFILE=wavファイル�オープン�失敗����。
 AUO_ERR_NO_WAVFILE=wavファイル����り��ん。音声エンコード�失敗����。
-AUO_ERR_AUDIO_LENGTH_DIFFERENT1=音声�長��映��長��異�るよ���。
+AUO_ERR_AUDIO_LENGTH_EXEDIT1=拡張編集�音声トラック�Aviutl本体�音声トラック�競������
+AUO_ERR_AUDIO_LENGTH_EXEDIT2=拡張編集��編集��音声�出力�れ���図��音声出力������能性�高���。
+AUO_ERR_AUDIO_LENGTH_EXEDIT3=一度出力を中断���当�拡張編集�シーン切り替�を一度行��戻��後��出力�る���改善�る場���り��。
+AUO_ERR_AUDIO_LENGTH_EXEDIT4=(例��拡張編集�シーンを Root → Scene1 → Root �よ��切り替��戻�)
+AUO_ERR_AUDIO_LENGTH_EXEDIT5=���拡張編集��音声�サンプリングレート�Aviutl本体��音声�サンプリングレート�異�る場����
+AUO_ERR_AUDIO_LENGTH_EXEDIT6=�れ�解決����場�も�り��。 
+AUO_ERR_AUDIO_LENGTH_EXEDIT7=拡張編集使用時���Aviutl本体�音声トラック読�込�を使用���よ��注�����。\n
+AUO_ERR_AUDIO_LENGTH_ZERO1=音声データ�存在������エンコードを行���ん。(長��0��)\n
+AUO_ERR_AUDIO_LENGTH_ZERO2=�図的�音声�出力を行���場����プラグイン出力�出力ファイル�を指定�る画��下部��る
+AUO_ERR_AUDIO_LENGTH_ZERO3=「オーディオ圧縮�欄���「音声無����ェックを入れ�出力���������。
+AUO_ERR_AUDIO_LENGTH_PROMPT_YESNO1=出力を中断����?
+AUO_ERR_AUDIO_LENGTH_PROMPT_YESNO2=[ ��　 ] ... 出力を中断�る (推奨)
+AUO_ERR_AUDIO_LENGTH_PROMPT_YESNO3=[ ��� ] ... 警告を無視��出力を継続�る
+AUO_ERR_AUDIO_LENGTH_DIFFERENT1=音声�長��映��長��異�るよ���。(%.1f％ > %.1f％)
+AUO_ERR_AUDIO_LENGTH_DIFFERENT1_2=音声�長��映��長��異�るよ���。
 AUO_ERR_AUDIO_LENGTH_DIFFERENT2=映�: %d:%02d:%02d.%03d, 音声: %d:%02d:%02d.%03d
 AUO_ERR_AUDIO_LENGTH_DIFFERENT3=音声�長��映��長��一致�るよ��自動的�調整����。
 AUO_ERR_AUDIO_LENGTH_DIFFERENT4=拡張編集�音声トラック�Aviutl本体�音声トラック�競����る�能性��り��。
diff --git a/NVEnc/NVEnc.zh.lng b/NVEnc/NVEnc.zh.lng
index a1a89f86..381cc637 100644
--- a/NVEnc/NVEnc.zh.lng
+++ b/NVEnc/NVEnc.zh.lng
@@ -132,7 +132,21 @@ AUO_ERR_VIDENC_VERSION4=�执行文件版本
 AUO_ERR_AFS_GET_FRAME=无法从Aviutl中读�到帧。
 AUO_ERR_OPEN_WAVFILE=无法打开wav文件。
 AUO_ERR_NO_WAVFILE=找�到wav文件。音频编�失败。
-AUO_ERR_AUDIO_LENGTH_DIFFERENT1=音频长度与视频长度�匹�。
+AUO_ERR_AUDIO_LENGTH_EXEDIT1=扩展编辑端音轨和Aviutl本体端音轨�能存在冲�，
+AUO_ERR_AUDIO_LENGTH_EXEDIT2=扩展编辑端编辑的音频很�能无法导出，目标音频也�能无法按预期导出。
+AUO_ERR_AUDIO_LENGTH_EXEDIT3=中断导出，适当地切�一次扩展编辑次��，然��新导出，或许能改善这�问题。
+AUO_ERR_AUDIO_LENGTH_EXEDIT4= (例如，在扩展编辑端进行如下切�：主�� → 次�� 1 → 主��）。
+AUO_ERR_AUDIO_LENGTH_EXEDIT5=但如果扩展编辑端与Aviutl本体端的音频采样率��，
+AUO_ERR_AUDIO_LENGTH_EXEDIT6=该问题�一定能够解决。
+AUO_ERR_AUDIO_LENGTH_EXEDIT7=请注�，��在使用扩展编辑时，�时使用Aviutl本体自带的音轨读�功能。\n
+AUO_ERR_AUDIO_LENGTH_ZERO1=音频数��存在，无法编�。(长度为0)\n
+AUO_ERR_AUDIO_LENGTH_ZERO2=若�想导出音频，请在勾选�幕底部“音频压缩���侧的“�用音频�
+AUO_ERR_AUDIO_LENGTH_ZERO3=，以指定�件导出的导出文件�，然��新导出。
+AUO_ERR_AUDIO_LENGTH_PROMPT_YESNO1=是�中止导出？
+AUO_ERR_AUDIO_LENGTH_PROMPT_YESNO2=[ 是 ] ... 中止导出
+AUO_ERR_AUDIO_LENGTH_PROMPT_YESNO3=[ �  ] ... 忽略警告，继续导出。
+AUO_ERR_AUDIO_LENGTH_DIFFERENT1=音频长度与视频长度�匹�。 (%.1f％ > %.1f％)
+AUO_ERR_AUDIO_LENGTH_DIFFERENT1_2=音频长度与视频长度�匹�。
 AUO_ERR_AUDIO_LENGTH_DIFFERENT2=视频: %d:%02d:%02d.%03d, 音频: %d:%02d:%02d.%03d
 AUO_ERR_AUDIO_LENGTH_DIFFERENT3=将自动调整音频长度以匹�视频长度。
 AUO_ERR_AUDIO_LENGTH_DIFFERENT4=扩展编辑音轨和Aviutl本体音轨�能存在冲�。
diff --git a/NVEnc/encode/auo_audio.cpp b/NVEnc/encode/auo_audio.cpp
index 6ee0ba7e..ac3d6bc4 100644
--- a/NVEnc/encode/auo_audio.cpp
+++ b/NVEnc/encode/auo_audio.cpp
@@ -118,14 +118,42 @@ void auo_faw_check(CONF_AUDIO *aud, const OUTPUT_INFO *oip, PRM_ENC *pe, const g
     }
 }
 
-void check_audio_length(OUTPUT_INFO *oip) {
+int message_check_audio_length() {
+    std::wstring mes = g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_DIFFERENT1_2) + std::wstring(L"\n\n");
+    mes += g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_EXEDIT1);
+    mes += g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_EXEDIT2) + std::wstring(L"\n\n");
+    mes += g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_EXEDIT3);
+    mes += g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_EXEDIT4) + std::wstring(L"\n\n");
+    mes += g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_EXEDIT5);
+    mes += g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_EXEDIT6) + std::wstring(L"\n\n");
+    mes += g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_PROMPT_YESNO1) + std::wstring(L"\n");
+    mes += g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_PROMPT_YESNO2) + std::wstring(L"\n");
+    mes += g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_PROMPT_YESNO3) + std::wstring(L"\n");
+    return MessageBox(NULL, wstring_to_string(mes).c_str(), AUO_NAME, MB_ICONERROR | MB_YESNO) == IDYES ? 1 : 0;
+}
+
+int check_audio_length(OUTPUT_INFO *oip, double av_length_threshold) {
+    if ((oip->flag & OUTPUT_INFO_FLAG_AUDIO) == 0) {
+        return 0;
+    }
     const double video_length = oip->n * (double)oip->scale / oip->rate;
     const double audio_length = oip->audio_n / (double)oip->audio_rate;
     if (video_length <= 1.0) { // 1秒未満��ェック���
-        return;
+        return 0;
+    }
+    if (oip->audio_n == 0) {
+        const BOOL exedit_is_used = check_if_exedit_is_used();
+        error_audio_length_zero(exedit_is_used);
+        if (oip->flag & OUTPUT_INFO_FLAG_BATCH) { // �ッ�出力時��エラー終了
+            return 1;
+        }
+        return message_check_audio_length();
     }
+    av_length_threshold = std::abs(av_length_threshold);
+    av_length_threshold = std::max(1e-4, av_length_threshold);
+
     const double audio_ratio = audio_length / video_length;
-    if (!check_range(audio_ratio, 0.95, 1.05)) { // 5%以上 差��る場�
+    if (!check_range(audio_ratio, std::max(1.0 - av_length_threshold, 0.0), 1.0 + av_length_threshold)) {
         const BOOL exedit_is_used = check_if_exedit_is_used();
         int selected_audio_rate = 0;
         if (exedit_is_used
@@ -144,11 +172,19 @@ void check_audio_length(OUTPUT_INFO *oip) {
         }
         if (selected_audio_rate != 0) {
             oip->audio_n = (int)div_round((int64_t)oip->audio_n * (int64_t)oip->audio_rate, (int64_t)selected_audio_rate);
-            info_audio_length_changed(video_length, audio_length, exedit_is_used);
+            info_audio_length_changed(video_length, audio_length, exedit_is_used, av_length_threshold);
         } else { // 5%以上差��る場�
-            warning_audio_length(video_length, audio_length, exedit_is_used);
+            error_audio_length(video_length, audio_length, exedit_is_used, av_length_threshold);
+            // 拡張編集使用時����図���出力��る�能性�高��エラー終了��る
+            if (exedit_is_used) {
+                if (oip->flag & OUTPUT_INFO_FLAG_BATCH) { // �ッ�出力時��エラー終了
+                    return 1;
+                }
+                return message_check_audio_length();
+            }
         }
     }
+    return 0;
 }
 
 static void build_wave_header(BYTE *head, const int audio_ch, const int audio_rate, BOOL use_8bit, int sample_n) {
diff --git a/NVEnc/encode/auo_audio.h b/NVEnc/encode/auo_audio.h
index 20d83b52..5b621a64 100644
--- a/NVEnc/encode/auo_audio.h
+++ b/NVEnc/encode/auo_audio.h
@@ -38,7 +38,7 @@
 void *get_audio_data(const OUTPUT_INFO *oip, PRM_ENC *pe, int start, int length, int *readed);
 
 void auo_faw_check(CONF_AUDIO *aud, const OUTPUT_INFO *oip, PRM_ENC *pe, const guiEx_settings *ex_stg);
-void check_audio_length(OUTPUT_INFO *oip);
+int check_audio_length(OUTPUT_INFO *oip, double av_length_threshold);
 
 AUO_RESULT audio_output(CONF_GUIEX *conf, const OUTPUT_INFO *oip, PRM_ENC *pe, const SYSTEM_DATA *sys_dat); //音声処�を実行
 AUO_RESULT audio_output_parallel(CONF_GUIEX *conf, const OUTPUT_INFO *oip, PRM_ENC *pe, const SYSTEM_DATA *sys_dat);
diff --git a/NVEnc/encode/auo_encode.cpp b/NVEnc/encode/auo_encode.cpp
index cf4a8e0b..49977f56 100644
--- a/NVEnc/encode/auo_encode.cpp
+++ b/NVEnc/encode/auo_encode.cpp
@@ -552,7 +552,9 @@ BOOL check_output(CONF_GUIEX *conf, OUTPUT_INFO *oip, const PRM_ENC *pe, guiEx_s
     //音声エンコーダ
     if (oip->flag & OUTPUT_INFO_FLAG_AUDIO) {
         //音声長��ェック
-        check_audio_length(oip);
+        if (check_audio_length(oip, exstg->s_local.av_length_threshold)) {
+            check = FALSE;
+        }
 
         if (conf->aud.use_internal) {
             CONF_AUDIO_BASE *cnf_aud = &conf->aud.in;
diff --git a/NVEnc/frm/auo_error.cpp b/NVEnc/frm/auo_error.cpp
index e6af88a4..5fe9e977 100644
--- a/NVEnc/frm/auo_error.cpp
+++ b/NVEnc/frm/auo_error.cpp
@@ -390,7 +390,23 @@ void error_no_wavefile() {
     write_log_auo_line(LOG_ERROR, g_auo_mes.get(AUO_ERR_NO_WAVFILE));
 }
 
-static void message_audio_length_different(const double video_length, const double audio_length, const BOOL exedit_is_used, const BOOL audio_length_changed) {
+
+void error_audio_length_zero(const BOOL exedit_is_used) {
+    write_log_auo_line(LOG_ERROR, g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_ZERO1));
+    if (exedit_is_used) {
+        write_log_auo_line(LOG_ERROR, g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_EXEDIT1));
+        write_log_auo_line(LOG_ERROR, g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_EXEDIT2));
+        write_log_auo_line(LOG_ERROR, g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_EXEDIT3));
+        write_log_auo_line(LOG_ERROR, g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_EXEDIT4));
+        write_log_auo_line(LOG_ERROR, g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_EXEDIT5));
+        write_log_auo_line(LOG_ERROR, g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_EXEDIT6));
+        write_log_auo_line(LOG_ERROR, g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_EXEDIT7));
+    }
+    write_log_auo_line(LOG_WARNING, g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_ZERO2));
+    write_log_auo_line(LOG_WARNING, g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_ZERO3));
+}
+
+static void message_audio_length_different(const double video_length, const double audio_length, const BOOL exedit_is_used, const double av_length_threshold, const BOOL audio_length_changed) {
     const int vid_h = (int)(video_length / 3600);
     const int vid_m = (int)(video_length - vid_h * 3600) / 60;
     const int vid_s = (int)(video_length - vid_h * 3600 - vid_m * 60);
@@ -401,24 +417,36 @@ static void message_audio_length_different(const double video_length, const doub
     const int aud_s = (int)(audio_length - aud_h * 3600 - aud_m * 60);
     const int aud_ms = std::min((int)((audio_length - (double)(aud_h * 3600 + aud_m * 60 + aud_s)) * 1000.0), 999);
 
+    const double diff_ratio = std::abs(1.0 - (audio_length / video_length));
+
     if (audio_length_changed) {
-        write_log_auo_line(    LOG_INFO, g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_DIFFERENT1));
+        write_log_auo_line_fmt(LOG_INFO, g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_DIFFERENT1), diff_ratio * 100.0, av_length_threshold * 100.0);
         write_log_auo_line_fmt(LOG_INFO, g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_DIFFERENT2),
             vid_h, vid_m, vid_s, vid_ms,
             aud_h, aud_m, aud_s, aud_ms);
         write_log_auo_line(LOG_INFO, g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_DIFFERENT3));
         if (exedit_is_used) {
-            write_log_auo_line(LOG_INFO, g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_DIFFERENT4));
-            write_log_auo_line(LOG_INFO, g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_DIFFERENT5));
+            write_log_auo_line(LOG_INFO, g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_EXEDIT1));
+            write_log_auo_line(LOG_INFO, g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_EXEDIT2));
+            write_log_auo_line(LOG_INFO, g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_EXEDIT3));
+            write_log_auo_line(LOG_INFO, g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_EXEDIT4));
+            write_log_auo_line(LOG_INFO, g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_EXEDIT5));
+            write_log_auo_line(LOG_INFO, g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_EXEDIT6));
+            write_log_auo_line(LOG_INFO, g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_EXEDIT7));
         }
     } else {
-        write_log_auo_line(    LOG_WARNING, g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_DIFFERENT1));
+        write_log_auo_line_fmt(LOG_WARNING, g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_DIFFERENT1), diff_ratio * 100.0, av_length_threshold * 100.0);
         write_log_auo_line_fmt(LOG_WARNING, g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_DIFFERENT2),
             vid_h, vid_m, vid_s, vid_ms,
             aud_h, aud_m, aud_s, aud_ms);
         if (exedit_is_used) {
-            write_log_auo_line(LOG_WARNING, g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_DIFFERENT4));
-            write_log_auo_line(LOG_WARNING, g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_DIFFERENT5));
+            write_log_auo_line(LOG_ERROR, g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_EXEDIT1));
+            write_log_auo_line(LOG_ERROR, g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_EXEDIT2));
+            write_log_auo_line(LOG_ERROR, g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_EXEDIT3));
+            write_log_auo_line(LOG_ERROR, g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_EXEDIT4));
+            write_log_auo_line(LOG_ERROR, g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_EXEDIT5));
+            write_log_auo_line(LOG_ERROR, g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_EXEDIT6));
+            write_log_auo_line(LOG_ERROR, g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_EXEDIT7));
         } else {
             write_log_auo_line(LOG_WARNING, g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_DIFFERENT6));
             write_log_auo_line(LOG_WARNING, g_auo_mes.get(AUO_ERR_AUDIO_LENGTH_DIFFERENT7));
@@ -428,12 +456,12 @@ static void message_audio_length_different(const double video_length, const doub
     }
 }
 
-void info_audio_length_changed(const double video_length, const double audio_length, const BOOL exedit_is_used) {
-    message_audio_length_different(video_length, audio_length, exedit_is_used, TRUE);
+void info_audio_length_changed(const double video_length, const double audio_length, const BOOL exedit_is_used, const double av_length_threshold) {
+    message_audio_length_different(video_length, audio_length, exedit_is_used, av_length_threshold, TRUE);
 }
 
-void warning_audio_length(const double video_length, const double audio_length, const BOOL exedit_is_used) {
-    message_audio_length_different(video_length, audio_length, exedit_is_used, FALSE);
+void error_audio_length(const double video_length, const double audio_length, const BOOL exedit_is_used, const double av_length_threshold) {
+    message_audio_length_different(video_length, audio_length, exedit_is_used, av_length_threshold, FALSE);
 }
 
 void error_audenc_failed(const wchar_t *name, const char *args) {
diff --git a/NVEnc/frm/auo_error.h b/NVEnc/frm/auo_error.h
index 219cb385..3e243861 100644
--- a/NVEnc/frm/auo_error.h
+++ b/NVEnc/frm/auo_error.h
@@ -78,8 +78,9 @@ void error_video_get_conv_func();
 void warning_auto_qpfile_failed();
 void warning_auo_tcfile_failed();
 void error_open_wavfile();
-void info_audio_length_changed(const double video_length, const double audio_length, const BOOL exedit_is_used);
-void warning_audio_length(const double video_length, const double audio_length, const BOOL exedit_is_used);
+void error_audio_length_zero(const BOOL exedit_is_used);
+void info_audio_length_changed(const double video_length, const double audio_length, const BOOL exedit_is_used, const double av_length_threshold);
+void error_audio_length(const double video_length, const double audio_length, const BOOL exedit_is_used, const double av_length_threshold);
 
 void error_malloc_pixel_data();
 void error_malloc_tc();
diff --git a/NVEnc/frm/auo_mes.cpp b/NVEnc/frm/auo_mes.cpp
index b1276431..4259b57e 100644
--- a/NVEnc/frm/auo_mes.cpp
+++ b/NVEnc/frm/auo_mes.cpp
@@ -193,7 +193,21 @@ static const char * AUO_MES_ID_NAME_STR[] = {
 "AUO_ERR_AFS_GET_FRAME",
 "AUO_ERR_OPEN_WAVFILE",
 "AUO_ERR_NO_WAVFILE",
+"AUO_ERR_AUDIO_LENGTH_EXEDIT1",
+"AUO_ERR_AUDIO_LENGTH_EXEDIT2",
+"AUO_ERR_AUDIO_LENGTH_EXEDIT3",
+"AUO_ERR_AUDIO_LENGTH_EXEDIT4",
+"AUO_ERR_AUDIO_LENGTH_EXEDIT5",
+"AUO_ERR_AUDIO_LENGTH_EXEDIT6",
+"AUO_ERR_AUDIO_LENGTH_EXEDIT7",
+"AUO_ERR_AUDIO_LENGTH_ZERO1",
+"AUO_ERR_AUDIO_LENGTH_ZERO2",
+"AUO_ERR_AUDIO_LENGTH_ZERO3",
+"AUO_ERR_AUDIO_LENGTH_PROMPT_YESNO1",
+"AUO_ERR_AUDIO_LENGTH_PROMPT_YESNO2",
+"AUO_ERR_AUDIO_LENGTH_PROMPT_YESNO3",
 "AUO_ERR_AUDIO_LENGTH_DIFFERENT1",
+"AUO_ERR_AUDIO_LENGTH_DIFFERENT1_2",
 "AUO_ERR_AUDIO_LENGTH_DIFFERENT2",
 "AUO_ERR_AUDIO_LENGTH_DIFFERENT3",
 "AUO_ERR_AUDIO_LENGTH_DIFFERENT4",
diff --git a/NVEnc/frm/auo_mes.h b/NVEnc/frm/auo_mes.h
index ca1971b9..04ae430d 100644
--- a/NVEnc/frm/auo_mes.h
+++ b/NVEnc/frm/auo_mes.h
@@ -231,7 +231,22 @@ enum AuoMes {
     AUO_ERR_OPEN_WAVFILE,
     AUO_ERR_NO_WAVFILE,
 
+    AUO_ERR_AUDIO_LENGTH_EXEDIT1,
+    AUO_ERR_AUDIO_LENGTH_EXEDIT2,
+    AUO_ERR_AUDIO_LENGTH_EXEDIT3,
+    AUO_ERR_AUDIO_LENGTH_EXEDIT4,
+    AUO_ERR_AUDIO_LENGTH_EXEDIT5,
+    AUO_ERR_AUDIO_LENGTH_EXEDIT6,
+    AUO_ERR_AUDIO_LENGTH_EXEDIT7,
+    AUO_ERR_AUDIO_LENGTH_ZERO1,
+    AUO_ERR_AUDIO_LENGTH_ZERO2,
+    AUO_ERR_AUDIO_LENGTH_ZERO3,
+    AUO_ERR_AUDIO_LENGTH_PROMPT_YESNO1,
+    AUO_ERR_AUDIO_LENGTH_PROMPT_YESNO2,
+    AUO_ERR_AUDIO_LENGTH_PROMPT_YESNO3,
+
     AUO_ERR_AUDIO_LENGTH_DIFFERENT1,
+    AUO_ERR_AUDIO_LENGTH_DIFFERENT1_2,
     AUO_ERR_AUDIO_LENGTH_DIFFERENT2,
     AUO_ERR_AUDIO_LENGTH_DIFFERENT3,
     AUO_ERR_AUDIO_LENGTH_DIFFERENT4,
diff --git a/NVEnc/prm/auo_settings.cpp b/NVEnc/prm/auo_settings.cpp
index df93281b..d8e63b11 100644
--- a/NVEnc/prm/auo_settings.cpp
+++ b/NVEnc/prm/auo_settings.cpp
@@ -652,6 +652,7 @@ void guiEx_settings::load_local() {
     s_local.default_audio_encoder_ext = GetPrivateProfileInt(   ini_section_main, "default_audio_encoder",     DEFAULT_AUDIO_ENCODER_EXT,     conf_fileName);
     s_local.default_audio_encoder_in  = GetPrivateProfileInt(   ini_section_main, "default_audio_encoder_in",  DEFAULT_AUDIO_ENCODER_IN,      conf_fileName);
     s_local.default_audenc_use_in     = GetPrivateProfileInt(   ini_section_main, "default_audenc_use_in",     DEFAULT_AUDIO_ENCODER_USE_IN,  conf_fileName);
+    s_local.av_length_threshold       = GetPrivateProfileDouble(ini_section_main, "av_length_threshold",       DEFAULT_AV_LENGTH_DIFF_THRESOLD, conf_fileName);
 #if ENCODER_QSV
     s_local.force_bluray              = GetPrivateProfileInt(   ini_section_main, "force_bluray",              DEFAULT_FORCE_BLURAY,          conf_fileName);
     s_local.perf_monitor              = GetPrivateProfileInt(   ini_section_main, "perf_monitor",              DEFAULT_PERF_MONITOR,          conf_fileName);
@@ -736,6 +737,7 @@ void guiEx_settings::save_local() {
     WritePrivateProfileIntWithDefault(   ini_section_main, "default_audio_encoder",     s_local.default_audio_encoder_ext, DEFAULT_AUDIO_ENCODER_EXT,     conf_fileName);
     WritePrivateProfileIntWithDefault(   ini_section_main, "default_audio_encoder_in",  s_local.default_audio_encoder_in,  DEFAULT_AUDIO_ENCODER_IN,      conf_fileName);
     WritePrivateProfileIntWithDefault(   ini_section_main, "default_audenc_use_in",     s_local.default_audenc_use_in,     DEFAULT_AUDIO_ENCODER_USE_IN,  conf_fileName);
+    WritePrivateProfileDoubleWithDefault(ini_section_main, "av_length_threshold",       s_local.av_length_threshold,       DEFAULT_AV_LENGTH_DIFF_THRESOLD,conf_fileName);
 #if ENCODER_QSV
     WritePrivateProfileIntWithDefault(   ini_section_main, "force_bluray",              s_local.force_bluray,              DEFAULT_FORCE_BLURAY,          conf_fileName);
     WritePrivateProfileIntWithDefault(   ini_section_main, "perf_monitor",              s_local.perf_monitor,              DEFAULT_PERF_MONITOR,          conf_fileName);
diff --git a/NVEnc/prm/auo_settings.h b/NVEnc/prm/auo_settings.h
index 3a34fb59..d2793286 100644
--- a/NVEnc/prm/auo_settings.h
+++ b/NVEnc/prm/auo_settings.h
@@ -56,6 +56,7 @@ static const BOOL   DEFAULT_FORCE_BLURAY          = 0;
 static const BOOL   DEFAULT_PERF_MONITOR          = 0;
 static const BOOL   DEFAULT_PERF_MONITOR_PLOT     = 0;
 #endif
+static const double DEFAULT_AV_LENGTH_DIFF_THRESOLD = 0.05;
 
 static const int    DEFAULT_LOG_LEVEL            = 0;
 static const BOOL   DEFAULT_LOG_WINE_COMPAT      = 0;
@@ -357,6 +358,7 @@ typedef struct LOCAL_SETTINGS {
     BOOL   default_audenc_use_in;               //デフォルト�音声エンコーダ����内蔵エンコーダを�択�る
     int    default_audio_encoder_ext;           //デフォルト�音声エンコーダ
     int    default_audio_encoder_in;            //デフォルト�音声エンコーダ
+    double av_length_threshold;                 //音声�映��長��差�割����値を超�る場��エラー・警告を表示�る
     BOOL   get_relative_path;                   //相対パス��存�る
     BOOL   run_bat_minimized;                   //エンコ�後�ッ�処�を最�化�実行
 #if ENCODER_QSV