Unverified50% confidenceFactExact time
Vibrato is a phenomenon in singing in which pitch fluctuates periodically around a center frequency, typically at about 5 to 7 times per second, produced jointly by periodic tension and relaxation of the laryngeal muscles and fluctuations in respiratory air pressure.
1
Sources
50%
Confidence
Long-term
Relevance
10/26/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedWhen whispering, the vocal cords do not vibrate and produce an aperiodic noise signal, whereas normal speech involves quasi-periodic vocal cord vibration; the two differ in spectral characteristics.70% similarUnverifiedThe essence of sound is a pressure disturbance in a medium.68% similarUnverifiedAudio waveform alignment is a post-production synchronization technique: during shooting, create an obvious sound pulse (such as a hand clap) at the start of each clip; this pulse forms a sharp peak on the audio track, and by aligning the peaks to the same point in time, the starting actions of multiple clips can be made completely synchronized, which is more precise than purely visual alignment.66% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/1098647API
curl https://kongchang.com/api/v1/knowledge/claims/1098647MCP
get_claim(id=1098647)