Matches in SemOpenAlex for { <https://semopenalex.org/work/W2016808569> ?p ?o ?g. }
Showing items 1 to 78 of
78
with 100 items per page.
- W2016808569 endingPage "S25" @default.
- W2016808569 startingPage "S25" @default.
- W2016808569 abstract "This paper summarizes the state of active noise cancellation in ducts. The application of active feedback to reduce the sound energy propagation through the duct is primarily important at low frequencies because passive silencers are very large, and the attenuations achieved are relatively small. In its classical configuration, the noise field detected by a signal microphone is phase inverted and time delayed by an adaptive filter. This signal is then reradiated into the duct from a sound source at the duct wall or located remotely and connected by means of a waveguide. The adaptive filter is controlled by a microphone located in the duct to sense the noise reduction and adjust the entire system for optimum operation. This paper analyzes the effects of the signal microphone position, type, and location of the cancellation sound sources, and sensing microphone location. Optimum operation requires consideration of higher order modes and the nearfield of the cancellation source, including evanescent waves. Results obtained with practical constructions illustrate the great potential of active systems to attenuate noise with discrete spectra, random noise, as well as transients are presented." @default.
- W2016808569 created "2016-06-24" @default.
- W2016808569 creator A5003453290 @default.
- W2016808569 creator A5033830559 @default.
- W2016808569 creator A5034815528 @default.
- W2016808569 date "1983-11-01" @default.
- W2016808569 modified "2023-09-25" @default.
- W2016808569 title "Active noise cancellation in ducts" @default.
- W2016808569 doi "https://doi.org/10.1121/1.2020873" @default.
- W2016808569 hasPublicationYear "1983" @default.
- W2016808569 type Work @default.
- W2016808569 sameAs 2016808569 @default.
- W2016808569 citedByCount "0" @default.
- W2016808569 crossrefType "journal-article" @default.
- W2016808569 hasAuthorship W2016808569A5003453290 @default.
- W2016808569 hasAuthorship W2016808569A5033830559 @default.
- W2016808569 hasAuthorship W2016808569A5034815528 @default.
- W2016808569 hasConcept C100342000 @default.
- W2016808569 hasConcept C115961682 @default.
- W2016808569 hasConcept C121332964 @default.
- W2016808569 hasConcept C142724271 @default.
- W2016808569 hasConcept C144024400 @default.
- W2016808569 hasConcept C154945302 @default.
- W2016808569 hasConcept C157138929 @default.
- W2016808569 hasConcept C163294075 @default.
- W2016808569 hasConcept C199360897 @default.
- W2016808569 hasConcept C24890656 @default.
- W2016808569 hasConcept C2778263558 @default.
- W2016808569 hasConcept C2778806681 @default.
- W2016808569 hasConcept C2779843651 @default.
- W2016808569 hasConcept C2781212128 @default.
- W2016808569 hasConcept C36289849 @default.
- W2016808569 hasConcept C36922181 @default.
- W2016808569 hasConcept C41008148 @default.
- W2016808569 hasConcept C71924100 @default.
- W2016808569 hasConcept C82979123 @default.
- W2016808569 hasConcept C99498987 @default.
- W2016808569 hasConceptScore W2016808569C100342000 @default.
- W2016808569 hasConceptScore W2016808569C115961682 @default.
- W2016808569 hasConceptScore W2016808569C121332964 @default.
- W2016808569 hasConceptScore W2016808569C142724271 @default.
- W2016808569 hasConceptScore W2016808569C144024400 @default.
- W2016808569 hasConceptScore W2016808569C154945302 @default.
- W2016808569 hasConceptScore W2016808569C157138929 @default.
- W2016808569 hasConceptScore W2016808569C163294075 @default.
- W2016808569 hasConceptScore W2016808569C199360897 @default.
- W2016808569 hasConceptScore W2016808569C24890656 @default.
- W2016808569 hasConceptScore W2016808569C2778263558 @default.
- W2016808569 hasConceptScore W2016808569C2778806681 @default.
- W2016808569 hasConceptScore W2016808569C2779843651 @default.
- W2016808569 hasConceptScore W2016808569C2781212128 @default.
- W2016808569 hasConceptScore W2016808569C36289849 @default.
- W2016808569 hasConceptScore W2016808569C36922181 @default.
- W2016808569 hasConceptScore W2016808569C41008148 @default.
- W2016808569 hasConceptScore W2016808569C71924100 @default.
- W2016808569 hasConceptScore W2016808569C82979123 @default.
- W2016808569 hasConceptScore W2016808569C99498987 @default.
- W2016808569 hasIssue "S1" @default.
- W2016808569 hasLocation W20168085691 @default.
- W2016808569 hasOpenAccess W2016808569 @default.
- W2016808569 hasPrimaryLocation W20168085691 @default.
- W2016808569 hasRelatedWork W1980150692 @default.
- W2016808569 hasRelatedWork W2016808569 @default.
- W2016808569 hasRelatedWork W2054034031 @default.
- W2016808569 hasRelatedWork W2086552772 @default.
- W2016808569 hasRelatedWork W2321576844 @default.
- W2016808569 hasRelatedWork W2334858046 @default.
- W2016808569 hasRelatedWork W2358361519 @default.
- W2016808569 hasRelatedWork W2550764682 @default.
- W2016808569 hasRelatedWork W2638207167 @default.
- W2016808569 hasRelatedWork W333769227 @default.
- W2016808569 hasVolume "74" @default.
- W2016808569 isParatext "false" @default.
- W2016808569 isRetracted "false" @default.
- W2016808569 magId "2016808569" @default.
- W2016808569 workType "article" @default.