diff --git a/whisper-2023/hotwords.py b/whisper-2023/hotwords.py
index 342f79b..b98db81 100644
--- a/whisper-2023/hotwords.py
+++ b/whisper-2023/hotwords.py
@@ -112,6 +112,8 @@ class Parser(threading.Thread):
       log("Parser.run: start")
       while True:
          try:
+            if environ.get("DEBUG", None):
+               log(self.inq.qsize())
             clip = self.inq.get()
             if clip is None:
                break
@@ -123,7 +125,7 @@ class Parser(threading.Thread):
 
    def _run(self, clip):
       r = sr.Recognizer()
-      return r.recognize_whisper(clip, language="english", model="small.en") # tiny.en=32x, base.en=16x, small.en=6x
+      return r.recognize_whisper(clip, language="english", model=environ.get("MODEL", "small.en")) # tiny.en=32x, base.en=16x, small.en=6x, medium.en=x2
 
 def load_dot_notation(v, s):
    items = s.replace("[]", ".[]").split(".")