Shure

Noise Identifier

Click play buttons to hear and identify common noise and interference issues. Includes support links to relevant troubleshooting articles and bulletins.

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  60 Cycle Hum

  Replicated by exposing unshielded condenser element to AC to DC transformer.

  
  

  Support Links:

  • Hum Caused by Ground Loops - Definition and Cures
  • Hum pickup on SM87
  • Microphone Hum Problem

• Please Install Adobe Flash Player.

  Comb Filtering

  Sibilant sound of “SH” between two active microphones.

  
  

  Support Links:

  • Theater Audio - Comb Filter Distortion From Close Proximity Of Lavalier Mics
  • Two MX mics on one lectern / podium

• Please Install Adobe Flash Player.

  GSM Noise

  Cell Phone, Mobile PDA, and Wireless Devices near computer speakers.

  
  

  Support Links:

  • Cell Phone, GSM, and PDA Interference - affecting other devices?
  • How to identify MX microphones with improved resistance to GSM interference
  • Cell Phone Frequencies / Wireless Communications Devices

• Please Install Adobe Flash Player.

  Interference from Motion Detector

  Ticking noise injected into wireless system by a nearby motion detector.

  
  

  Support Links:

  • Selection and Operation: Wireless Microphone Systems (pdf)

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  Music with Automixer

  Sustained guitar chords through SCM810 being gated.

  
  

  Support Links:

  • Feedback in a church
  • Disabling Automatic Mixing Function By Channel
  • Submixing into an automatic mixer

• Please Install Adobe Flash Player.

  PSM Dropout

  Musical passage experiencing multipath dropout.

  
  

  Support Links:

  • PSM700 Dropouts at close range
  • Causes of wireless system dropouts
  • Sound dropping out of PSM400

• Please Install Adobe Flash Player.

  RF Dropout

  Testing wireless microphone while experiencing loss of line of sight.

  
  

  Support Links:

  • Causes of wireless system dropouts
  • Choosing a wireless microphone
  • Wireless for Health Clubs

• Please Install Adobe Flash Player.

  TV Audio Interference

  Dropouts resulting from operating a wireless system on the audio carrier of an active analog TV station.

  
  

  Support Links:

  • What television stations should I avoid for my wireless microphone?
  • RF spectrum analyzer
  • Causes of wireless system dropouts