And one of the things you could do is , you could do some sort of VAD - like thing
Mm - hmm.
and you actually could take very low - energy sections and set them to some  some , uh , very low or  or near zero  value. I mean , uh , I 'm just saying if in fact it turns out that  that these echoes that you 're hearing are , uh
Uh - huh.