From 3e8d4cef8913330709c8b2f645c255192d8d50b6 Mon Sep 17 00:00:00 2001
From: Eunseo Sim <55528304+simeunseo@users.noreply.github.com>
Date: Tue, 3 Dec 2024 03:19:49 +0900
Subject: [PATCH] =?UTF-8?q?feat:=20=ED=95=9C=EB=B2=88=20=ED=99=9C=EC=84=B1?=
 =?UTF-8?q?=ED=99=94=EB=90=98=EA=B3=A0=20=EB=82=98=EB=A9=B4=201=EC=B4=88?=
 =?UTF-8?q?=20=EB=94=9C=EB=A0=88=EC=9D=B4=EB=A5=BC=20=EC=A3=BC=EC=96=B4=20?=
 =?UTF-8?q?=EB=A7=A4=EB=81=84=EB=9F=AC=EC=9A=B4=20=ED=99=9C=EC=84=B1=20?=
 =?UTF-8?q?=EC=83=81=ED=83=9C=20=ED=91=9C=EC=8B=9C?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../hooks/mediasoup/useAudioLevelDetector.ts  | 27 ++++++++++++++++---
 1 file changed, 23 insertions(+), 4 deletions(-)

diff --git a/apps/web/src/hooks/mediasoup/useAudioLevelDetector.ts b/apps/web/src/hooks/mediasoup/useAudioLevelDetector.ts
index 6bd605f2..ffcfd79b 100644
--- a/apps/web/src/hooks/mediasoup/useAudioLevelDetector.ts
+++ b/apps/web/src/hooks/mediasoup/useAudioLevelDetector.ts
@@ -11,16 +11,21 @@ interface AudioLevelData {
 const useAudioLevelDetector = () => {
   const audioContextRef = useRef<AudioContext | null>(null);
   const audioLevelsRef = useRef<AudioLevelData[]>([]);
+
+  const lastActiveTimeRef = useRef<number>(0);
+  const currentSpeakerRef = useRef<string | null>(null);
+
   const [activeSocketId, setActiveSocketId] = useState<string | null>(null);
 
   const startAudioLevelDetection = () => {
     const AUDIO_THRESHOLD = 0.01;
+    const SPEECH_END_DELAY = 1000;
 
     const detectAudioLevels = () => {
       const audioLevels = audioLevelsRef.current;
 
       let maxLevel = 0;
-      let currentSpeakerSocketId = null;
+      let maxLevelSocketId = null;
 
       audioLevels.forEach((levelData) => {
         const { analyser, dataArray, socketId } = levelData;
@@ -34,13 +39,27 @@ const useAudioLevelDetector = () => {
 
         if (level > maxLevel) {
           maxLevel = level;
-          currentSpeakerSocketId = socketId;
+          maxLevelSocketId = socketId;
         }
       });
+
       if (maxLevel > AUDIO_THRESHOLD) {
-        setActiveSocketId(currentSpeakerSocketId);
+        lastActiveTimeRef.current = Date.now();
+
+        if (currentSpeakerRef.current === null) {
+          currentSpeakerRef.current = maxLevelSocketId;
+          setActiveSocketId(maxLevelSocketId);
+        } else if (maxLevelSocketId !== currentSpeakerRef.current) {
+          currentSpeakerRef.current = maxLevelSocketId;
+          setActiveSocketId(maxLevelSocketId);
+        }
       } else {
-        setActiveSocketId(null);
+        const activeTime = Date.now() - lastActiveTimeRef.current;
+
+        if (activeTime > SPEECH_END_DELAY && currentSpeakerRef.current !== null) {
+          currentSpeakerRef.current = null;
+          setActiveSocketId(null);
+        }
       }
     };