fix(core): dedupe transcriptions based on segment id (#1149)

Author: lukasIO

.changeset/popular-mugs-drive.md

@@ -0,0 +1,5 @@
+---
+"@livekit/components-core": patch
+---
+
+fix(core): dedupe transcriptions based on segment id

packages/core/src/components/textStream.ts

@@ -68,7 +68,12 @@ export function setupTextStream(room: Room, topic: string): Observable<TextStrea
     // Subscribe to the stream and update our array when new chunks arrive
     streamObservable.subscribe((accumulatedText) => {
       // Find and update the stream in our array
-      const index = textStreams.findIndex((stream) => stream.streamInfo.id === reader.info.id);
+      const index = textStreams.findIndex(
+        (stream) =>
+          stream.streamInfo.id === reader.info.id ||
+          stream.streamInfo.attributes?.['lk.segment_id'] ===
+            reader.info.attributes?.['lk.segment_id'],
+      );
       if (index !== -1) {
         textStreams[index] = {
           ...textStreams[index],