Update app.py

app.py

@@ -138,7 +138,6 @@ if __name__ == "__main__":
     mapping = [c - 1 for c in channels]
     interval_size = 10 
     downsample = 1
-    block_size = int(sample_rate * interval_size / 1000)
 
     Threader(name='mythread')
     st.button("Detener Stream")