Difference between revisions of "Transient"
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==Etymology== | ==Etymology== | ||
[[Latin]] transeunt-, transiens, present participle of transire to cross, pass by, from trans- + ire to go | [[Latin]] transeunt-, transiens, present participle of transire to cross, pass by, from trans- + ire to go | ||
| − | *Date: [ | + | *Date: [https://www.wikipedia.org/16th_Century 1599] |
==Definitions== | ==Definitions== | ||
*1 a : passing especially quickly into and out of [[existence]] : transitory <transient [[beauty]]> | *1 a : passing especially quickly into and out of [[existence]] : transitory <transient [[beauty]]> | ||
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Transients are difficult to encode with many audio compression [[algorithms]], causing pre-echo. | Transients are difficult to encode with many audio compression [[algorithms]], causing pre-echo. | ||
| − | A '''transient''' [[astronomical]] [[event]], often simply called in [[context]] by astronomers a transient, is an astronomical object or [[phenomenon]] which can be [[observed]] for a short period of [[time]]. Singularly, the term is used for [[violent]] [ | + | A '''transient''' [[astronomical]] [[event]], often simply called in [[context]] by astronomers a transient, is an astronomical object or [[phenomenon]] which can be [[observed]] for a short period of [[time]]. Singularly, the term is used for [[violent]] [https://en.wikipedia.org/wiki/Deep_sky deep sky] [[events]] such as [https://en.wikipedia.org/wiki/Supernovae supernovae] and [https://en.wikipedia.org/wiki/Gamma_ray_bursts gamma ray bursts]. |
==See also== | ==See also== | ||
*'''''[[Ephemeral]]''''' | *'''''[[Ephemeral]]''''' | ||
[[Category: General Reference]] | [[Category: General Reference]] | ||
Latest revision as of 02:42, 13 December 2020
Etymology
Latin transeunt-, transiens, present participle of transire to cross, pass by, from trans- + ire to go
- Date: 1599
Definitions
- b : passing through or by a place with only a brief stay or sojourn <transient visitors>
- 2 : affecting something or producing results beyond itself
Synonyms
transitory, ephemeral, momentary, fugitive, fleeting, evanescent mean lasting or staying only a short time. transient applies to what is actually short in its duration or stay <a hotel catering primarily to transient guests>. transitory applies to what is by its nature or essence bound to change, pass, or come to an end <fame in the movies is transitory>. ephemeral implies striking brevity of life or duration <many slang words are ephemeral>.
Description
In acoustics and audio, a transient is a short-duration signal that represents a non-harmonic attack phase of a musical sound or spoken word. It contains a high degree of non-periodic components and a higher magnitude of high frequencies than the harmonic content of that sound. Transients do not directly depend on the frequency of the tone they initiate. Transients are difficult to encode with many audio compression algorithms, causing pre-echo.
A transient astronomical event, often simply called in context by astronomers a transient, is an astronomical object or phenomenon which can be observed for a short period of time. Singularly, the term is used for violent deep sky events such as supernovae and gamma ray bursts.
