diff --git a/w_okada's_Voice_Changer_version_2_x.ipynb b/w_okada's_Voice_Changer_version_2_x.ipynb
index 572cf64a..b9f6abed 100644
--- a/w_okada's_Voice_Changer_version_2_x.ipynb
+++ b/w_okada's_Voice_Changer_version_2_x.ipynb
@@ -216,8 +216,7 @@
         "colab": {
           "base_uri": "https://localhost:8080/",
           "height": 148
-        },
-        "cellView": "form"
+        }
       },
       "outputs": [
         {
@@ -252,7 +251,8 @@
         "# @title **[2]** Start server\n",
         "# @markdown This cell will start the server, the first time that you run it will download the models, so it can take a while (2~4 minutes)\n",
         "\n",
-        "#@markdown - Options:\n",
+        "\n",
+        "# @markdown ### Options:\n",
         "ClearConsole = True  # @param {type:\"boolean\"}\n",
         "Play_Notification = True  # @param {type:\"boolean\"}\n",
         "\n",
@@ -312,13 +312,29 @@
         "    play_notification_sound('https://huggingface.co/wok000/voices/resolve/main/vcclient001_vctk229_gpt-sovits_vcclient-ready.wav')\n",
         "wait_for_server()\n"
       ]
+    },
+    {
+      "cell_type": "code",
+      "source": [
+        "# @title **[FAQ]**\n",
+        "\n",
+        "# @markdown #### Q. Delay is too large, why?\n",
+        "# @markdown #### A. In the Colab edition, the audio output buffer is set larger to account for network latency. Depending on the environment, reducing this buffer may reduce delay. However, in some environments, this may cause the sound to become choppy due to network latency. The following diagram shows how to change the buffer size.\n",
+        "# @markdown <img src=\"https://huggingface.co/wok000/voices/resolve/main/%5Bimg%5Dvcclient001_output_buffer_size_ratio.png?download=true\" width=\"600\">\n"
+      ],
+      "metadata": {
+        "cellView": "form",
+        "id": "1uN-kGd5-IYx"
+      },
+      "execution_count": null,
+      "outputs": []
     }
   ],
   "metadata": {
     "colab": {
       "provenance": [],
       "gpuType": "T4",
-      "authorship_tag": "ABX9TyO4xBCjHQ5g0B28Cfbnr1eo",
+      "authorship_tag": "ABX9TyPEPBkGLPAGJGofiLPcnQhG",
       "include_colab_link": true
     },
     "kernelspec": {