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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:
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Clipping
Demonstrated by applying too much gain to a microphone input.
Support Links:
- How do I set the Gain Structure of my sound system?
- ULX-D Automatic Gain Ranging
- Understand specs for input and output clipping
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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
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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
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Interference from Motion Detector
Ticking noise injected into wireless system by a nearby motion detector.
Support Links:
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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
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PSM Dropout
Musical passage experiencing multipath dropout.
Support Links:
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RF Dropout
Testing wireless microphone while experiencing loss of line of sight.
Support Links:
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TV Audio Interference
Dropouts resulting from operating a wireless system on the audio carrier of an active analog TV station.
Support Links: