diff --git a/speak.py b/speak.py
index b15a63f..3197565 100644
--- a/speak.py
+++ b/speak.py
@@ -1,11 +1,13 @@
 import argparse, json, sys, time, random
 import utterance.voice
 import utterance.utils
+
+UTTERANCE_LEN = 16				#<--------------- these should be in config
 				
 def main() -> int:
 
 	p = argparse.ArgumentParser()
-	p.add_argument("-c", "--config", type=str, default="config.json", help="configuratin file")
+	p.add_argument("-c", "--config", type=str, default="voice.config.json", help="configuratin file")
 	p.add_argument("-i", "--iterations", type=int, default=10, help="number of iterations")
 	args = p.parse_args()
 
@@ -16,25 +18,23 @@ def main() -> int:
 
 	voices = []
 	for v in conf['voices']:
-		voice = utterance.voice.Voice(name=v["name"].upper(), model=v['model_dir'], tokenizer=v['tokeniser_file'], temp=float(v["temperature"]), lenght=32)
+		model = v['model']
+		voice = utterance.voice.Voice(name=v["name"].upper(), model=model['model_dir'], tokenizer=model['tokeniser_file'], temp=float(model["temperature"]), lenght=UTTERANCE_LEN)
 		voices.append(voice)
 
-	nbr_voices = len(voices)
-	current_voice = ""
+	current_voice_name = ""
 	for i in range(args.iterations):
-		rindex = random.randint(0, nbr_voices - 1)
-		v = voices[rindex]
-		if v.name != current_voice:
+		v = random.sample(voices, 1)[0]
+		if v.name != current_voice_name:
+			current_voice_name = v.name
 			print("==========")
 			print(v.name + ":")
-			current_voice = v.name
-		t = v.utter_one()
-		if t != None:
+			t = v.utter_one()
 			t = utterance.utils.clean(t)
 			t = utterance.utils.format(t)
 			print(t)
 		
-		time.sleep(4)
+		# time.sleep(1)
 
 
 if __name__ == '__main__':