0057B - Audio Clicks
Summary
EBU QC Id
0057B
Name
Audio Clicks
Status
published
Category
subjective
Lead editor
Joerg Houpert
Aliases
analogue and digital clicks audio pops audio glitches audio crackles audio spikes disc scratches impulse noise
Tags
audio
Versions
Version Status Edition date Saved by Note
Details
Definition
System shall discover audio clicks by analyzing the baseband signal.
References
Examples
  • Audio Click(s) above threshold found at sample position timecode 10:00:10:00.

Input parameters
Name Description
Output parameters
Name Description
Test material
Title Version Download
Remarks
Remarks
This is relevant for archive ingest, where analogue legacy problems should be detected. False detections may occure as clicks and crackles are also used for creative sound design.

Audio clicks are short duration audio artefacts caused in digital systems by hardware/software problems such as buffer under-run/overflow or synchronisation issues. When present inside an audio file they are usually generated because of a defective or critical recording chain.

In the time domain a click is typically visible as a discontinuity (a rapid and abnormal variation) on the waveform, in the frequency domain this results in spikes at high frequency in the affected time interval.
User discussions
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