diff --git a/main.py b/main.py
index 21027bb..b1a3a61 100755
--- a/main.py
+++ b/main.py
@@ -67,6 +67,9 @@ def main():
 
         chunk = signal[:, start_sample:end_sample]
 
+        # normalize
+        chunk /= chunk.abs().max()
+
         # SpeechBrain expects [batch, time]
         emb = classifier.encode_batch(chunk)
         emb = emb.squeeze().detach().cpu().numpy()