It takes 7 seconds for a full defuse. Once a defender reaches the 3.5-second halfway mark , the Spike emits a different, higher-pitched audio cue .
If a player starts a defuse on a Spike that has already been "halved," the starting sound is noticeably higher in pitch than a fresh defuse. Pro Sound FX Techniques
A "fake" is simply tapping the defuse button briefly to trigger the initial audio cue, then immediately letting go to bait an enemy out of hiding.






