Fidelity is the quality of faithfulness or loyalty. Its original meaning regarded duty in a broader sense than the related concept of fealty. Both derive from the Latin word fidēlis, meaning "faithful or loyal". In the City of London financial markets it has traditionally been used in the sense encompassed in the motto "My word is my bond".
Palazzo Ducale in Venice: capital # 28 in the porch, featuring Virtues and vices - In fidelitate nulli gero (Fidelity)
In audio, "fidelity" denotes how accurately a copy reproduces its source. In the 1950s, the terms "high fidelity" or "hi-fi" were popularized for equipment and recordings which exhibited more accurate sound reproduction.[1] For example, a worn gramophone record will have a lower fidelity than one in good condition, and a recording made by a low budget record company in the early 20th century is likely to have significantly less audio fidelity than a good modern recording.[citation needed] Similarly in electronics, fidelity refers to the correspondence of the output signal to the input signal, rather than sound quality, as in the popular internet connection technology "Wi-Fi".[citation needed]
The term "lo-fi" has existed since at least the 1950s, shortly after the acceptance of "hi-fi", but its definition evolved continuously between the 1970s and 2000s. In the 1976 edition of the Oxford Dictionary,[clarification needed] lo-fi was added under the definition of "sound production less good in quality than 'hi-fi,'" and in the glossary of the 1977 book The Tuning of the World, was defined as "unfavourable signal-to-noise ratio." in 2003, the Oxford Dictionary added a second definition for the term—"a genre of rock music characterized by minimal production, giving a raw and unsophisticated sound". A third was added in 2008: "unpolished, amateurish, or technologically unsophisticated, esp. as a deliberate aesthetic choice."[2]
Scientific modelling and simulation
In the fields of scientific modelling and simulation, fidelity refers to the degree to which a model or simulation reproduces the state and behaviour of a real world object, feature or condition. Fidelity is therefore a measure of the realism of a model or simulation.[3] Simulation fidelity has also been described in the past as "degree of similarity".[4] In quantum mechanics and optics,[5] the fidelity of a field is calculated as an overlap integral of the field of interest with a reference or target field.
Program evaluation
In the field of program evaluation, the term fidelity denotes how closely a set of procedures were implemented as they were supposed to have been. For example, it is difficult to draw conclusions from a study about formative assessment in school classrooms if the teachers are not able or willing to follow the procedures they received in training.[6]
In translation, fidelity is the extent to which a translation accurately renders the meaning of the source text, without distortion. It is contrasted with transparency, which is the extent to which a translation appears to a native speaker of the target language to have originally been written in that language.
^Hartley, H. A. (1958). (PDF). New York, New York: Gernsback Library. pp. 7, 20. Library of Congress Catalog Card No. 57-9007. Archived from the original (PDF) on 2009-01-27. Retrieved 2009-08-08.
^Harper, Adam (2014). Lo-Fi Aesthetics in Popular Music Discourse (PDF). Wadham College. pp. 7–11. Retrieved March 10, 2018.
^"SISO-REF-002-1999: Fidelity Implementation Study Group Report". Simulation Interoperability Standards Organization. 1999. Retrieved January 2, 2015.
^Hays, R. T.; Singer, M. J. (1989). Simulation fidelity in training system design: Bridging the gap between reality and training. Springer-Verlag.
^Bowman, D.; Harte, T. L.; Chardonnet, V.; Groot, C. De; Denny, S. J.; Goc, G. Le; Anderson, M.; Ireland, P.; Cassettari, D. (2017-05-15). "High-fidelity phase and amplitude control of phase-only computer generated holograms using conjugate gradient minimisation". Optics Express. 25 (10): 11692–11700. arXiv:1701.08620. Bibcode:2017OExpr..2511692B. doi:10.1364/OE.25.011692. ISSN 1094-4087. PMID 28788742.
^O'Donnell, Carol L. (2008). "Defining, Conceptualizing, and Measuring Fidelity of Implementation and Its Relationship to Outcomes in K–12 Curriculum Intervention Research". Review of Educational Research. 78 (1): 33–84. doi:10.3102/0034654307313793.
January 20, 2023
fidelity, other, uses, disambiguation, quality, faithfulness, loyalty, original, meaning, regarded, duty, broader, sense, than, related, concept, fealty, both, derive, from, latin, word, fidēlis, meaning, faithful, loyal, city, london, financial, markets, trad. For other uses see Fidelity disambiguation Fidelity is the quality of faithfulness or loyalty Its original meaning regarded duty in a broader sense than the related concept of fealty Both derive from the Latin word fidelis meaning faithful or loyal In the City of London financial markets it has traditionally been used in the sense encompassed in the motto My word is my bond Palazzo Ducale in Venice capital 28 in the porch featuring Virtues and vices In fidelitate nulli gero Fidelity Contents 1 Audio and electronics 2 Scientific modelling and simulation 3 Program evaluation 4 Translation 5 See also 6 ReferencesAudio and electronics EditSee also Sound recording and reproduction In audio fidelity denotes how accurately a copy reproduces its source In the 1950s the terms high fidelity or hi fi were popularized for equipment and recordings which exhibited more accurate sound reproduction 1 For example a worn gramophone record will have a lower fidelity than one in good condition and a recording made by a low budget record company in the early 20th century is likely to have significantly less audio fidelity than a good modern recording citation needed Similarly in electronics fidelity refers to the correspondence of the output signal to the input signal rather than sound quality as in the popular internet connection technology Wi Fi citation needed The term lo fi has existed since at least the 1950s shortly after the acceptance of hi fi but its definition evolved continuously between the 1970s and 2000s In the 1976 edition of the Oxford Dictionary clarification needed lo fi was added under the definition of sound production less good in quality than hi fi and in the glossary of the 1977 book The Tuning of the World was defined as unfavourable signal to noise ratio in 2003 the Oxford Dictionary added a second definition for the term a genre of rock music characterized by minimal production giving a raw and unsophisticated sound A third was added in 2008 unpolished amateurish or technologically unsophisticated esp as a deliberate aesthetic choice 2 Scientific modelling and simulation EditIn the fields of scientific modelling and simulation fidelity refers to the degree to which a model or simulation reproduces the state and behaviour of a real world object feature or condition Fidelity is therefore a measure of the realism of a model or simulation 3 Simulation fidelity has also been described in the past as degree of similarity 4 In quantum mechanics and optics 5 the fidelity of a field is calculated as an overlap integral of the field of interest with a reference or target field Program evaluation EditIn the field of program evaluation the term fidelity denotes how closely a set of procedures were implemented as they were supposed to have been For example it is difficult to draw conclusions from a study about formative assessment in school classrooms if the teachers are not able or willing to follow the procedures they received in training 6 Translation EditMain article Translation Fidelity and transparency In translation fidelity is the extent to which a translation accurately renders the meaning of the source text without distortion It is contrasted with transparency which is the extent to which a translation appears to a native speaker of the target language to have originally been written in that language See also Edit Wikiquote has quotations related to Fidelity Classism Erikson s theory of personality Erikson s fidelity is the ability to commit to others and acceptance of others Knighthood Monasticism Rankism InfidelityReferences Edit Hartley H A 1958 Audio Design Handbook PDF New York New York Gernsback Library pp 7 20 Library of Congress Catalog Card No 57 9007 Archived from the original PDF on 2009 01 27 Retrieved 2009 08 08 Harper Adam 2014 Lo Fi Aesthetics in Popular Music Discourse PDF Wadham College pp 7 11 Retrieved March 10 2018 SISO REF 002 1999 Fidelity Implementation Study Group Report Simulation Interoperability Standards Organization 1999 Retrieved January 2 2015 Hays R T Singer M J 1989 Simulation fidelity in training system design Bridging the gap between reality and training Springer Verlag Bowman D Harte T L Chardonnet V Groot C De Denny S J Goc G Le Anderson M Ireland P Cassettari D 2017 05 15 High fidelity phase and amplitude control of phase only computer generated holograms using conjugate gradient minimisation Optics Express 25 10 11692 11700 arXiv 1701 08620 Bibcode 2017OExpr 2511692B doi 10 1364 OE 25 011692 ISSN 1094 4087 PMID 28788742 O Donnell Carol L 2008 Defining Conceptualizing and Measuring Fidelity of Implementation and Its Relationship to Outcomes in K 12 Curriculum Intervention Research Review of Educational Research 78 1 33 84 doi 10 3102 0034654307313793 Retrieved from https en wikipedia org w index php title Fidelity amp oldid 1034880391, wikipedia, wiki, book, books, library,
