With regular prolonged usage, wireless lapel microphones may begin to generate a crackling, popping or rattling noise as a small cartridge within the microphone capsule gradually loosens. Sometimes incorrectly described as feedback, this noise can be distracting at best. If indeed the symptom is caused by a loosened cartridge rather than a worn cable or faulty connection, here is the procedure for resolving the issue:
- Remove the windscreen from the microphone by pulling it up and away from the capsule.
- Tighten the cartridge to the capsule by gently rotating its top, clockwise. It is important that you do not use any tools to tighten the cartridge; finger strength will be sufficient.
- If the cartridge is disconnected and inside the windscreen, reattach the windscreen to the capsule by placing it at a vertical angle and turning the cartridge with the windscreen. Let gravity assist you in making sure the connection is stable. Repeat step 2 as needed.