diff --git a/src/utils/transcribeAWS.js b/src/utils/transcribeAWS.js
index 8ce550e..66f27bd 100644
--- a/src/utils/transcribeAWS.js
+++ b/src/utils/transcribeAWS.js
@@ -19,7 +19,7 @@
 
 const { spawn } = require('child_process');
 
-const CHUNK_SIZE = 32768; // 32 KB per audio chunk
+const CHUNK_SIZE = 8192; // 8 KB per audio chunk (AWS limit ~32KB per event frame)
 
 // Convert any browser audio (WebM, OGG, etc.) to raw PCM s16le 16kHz mono
 // using ffmpeg. Returns a Buffer of raw PCM bytes.