diff --git a/env_example.sh b/env_example.sh
index 565c34e..2a87a38 100644
--- a/env_example.sh
+++ b/env_example.sh
@@ -1,3 +1,4 @@
 
 export ACCESS_CONTROL_ALLOW_ORIGIN="*"
 export API_STT_MODEL="/Models/faster-whisper-medium"
+# export API_STT_THREADS=4 # per worker, default: 4
diff --git a/transcriptapi/env.py b/transcriptapi/env.py
index 334fcb2..f6a2ee1 100644
--- a/transcriptapi/env.py
+++ b/transcriptapi/env.py
@@ -9,6 +9,11 @@ _logger = _ComponentLogger("Environment", print_timestamp=False)
 try:
     ACCESS_CONTROL_ALLOW_ORIGIN = str(_environ["ACCESS_CONTROL_ALLOW_ORIGIN"])
     API_STT_MODEL = _Path(_environ["API_STT_MODEL"])
+    API_STT_THREADS = int(_environ.get("API_STT_THREADS", 4)) # per worker
+    # log stt config
+    _logger.info("STT Configuration:")
+    _logger.info(f" Model: {API_STT_MODEL}")
+    _logger.info(f" Threads: {API_STT_THREADS} per worker")
 except KeyError as e:
     _logger.critical(f"Missing {e}")
     exit(1)
diff --git a/transcriptapi/server.py b/transcriptapi/server.py
index 94ad773..33dc0e4 100644
--- a/transcriptapi/server.py
+++ b/transcriptapi/server.py
@@ -31,7 +31,7 @@ def get_app() -> _Sanic:
 
     @app.before_server_start
     async def setup_stt(app):
-        app.ctx.stt = _STT(_env.API_STT_MODEL, logger=_ComponentLogger(f"{_getpid()}/STT"))
+        app.ctx.stt = _STT(_env.API_STT_MODEL, n_threads=_env.API_STT_THREADS, logger=_ComponentLogger(f"{_getpid()}/STT"))
     
     @app.after_server_start
     async def init_stt(app):