Problem
The lavalier cable is routed under a loose garment and repeatedly taps the fabric during natural movement.
Solution
Root Cause / Diagnostic:
A loose lavalier cable suspended freely inside clothing swings against garment linings during torso movement. This mechanical percussion transmits vibrations directly into the capsule body as low-frequency thumps.
Actionable Fix:
1. Tape the cable flat against talent's skin or inner undershirt at 10cm intervals using medical transpore tape.
2. Form a tight broadcast bight (figure-8 strain loop) right below the capsule to terminate kinetic energy transfer.
3. Monitor the low-end spectrum on an RTA; ensure zero percussive spikes below 120 Hz when talent walks or shifts weight.
Pro Tip:
Running mic cables through an elastic waist band or tensioned undershirt eliminates loose dangling segments that generate contact noise.
A loose lavalier cable suspended freely inside clothing swings against garment linings during torso movement. This mechanical percussion transmits vibrations directly into the capsule body as low-frequency thumps.
Actionable Fix:
1. Tape the cable flat against talent's skin or inner undershirt at 10cm intervals using medical transpore tape.
2. Form a tight broadcast bight (figure-8 strain loop) right below the capsule to terminate kinetic energy transfer.
3. Monitor the low-end spectrum on an RTA; ensure zero percussive spikes below 120 Hz when talent walks or shifts weight.
Pro Tip:
Running mic cables through an elastic waist band or tensioned undershirt eliminates loose dangling segments that generate contact noise.