From 17ff9d3ce0ed4e5441d7c92f9e212c15a7d377ee Mon Sep 17 00:00:00 2001
From: hailin <hailin.zhao@gdzx.xyz>
Date: Mon, 2 Mar 2026 23:57:26 -0800
Subject: [PATCH] fix: use Speechmatics cmn_en bilingual model for
 Chinese-English mixed speech

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
---
 packages/services/voice-agent/src/plugins/speechmatics_stt.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/services/voice-agent/src/plugins/speechmatics_stt.py b/packages/services/voice-agent/src/plugins/speechmatics_stt.py
index edcf9cb..f1b4fea 100644
--- a/packages/services/voice-agent/src/plugins/speechmatics_stt.py
+++ b/packages/services/voice-agent/src/plugins/speechmatics_stt.py
@@ -16,7 +16,7 @@ logger = logging.getLogger(__name__)
 
 # Map Whisper language codes to Speechmatics language codes
 _LANG_MAP = {
-    "zh": "cmn",
+    "zh": "cmn_en",
     "en": "en",
     "ja": "ja",
     "ko": "ko",