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Statements

Subject Item
dbr:Attenuation_distortion
rdf:type
yago:Phenomenon100034213 yago:Process100029677 yago:PhysicalEntity100001930 yago:WikicatAudioEffects yago:Consequence111410625
rdfs:label
Attenuation distortion
rdfs:comment
Attenuation distortion is the distortion of an analog signal that occurs during transmission when the transmission medium does not have a flat frequency response across the bandwidth of the medium or the frequency spectrum of the signal. Attenuation distortion occurs when some frequencies are attenuated more than other frequencies. When an analog signal of constant amplitude across its frequency spectrum suffers attenuation distortion, some frequencies of the received signal arrive being greater in amplitude (louder), relative to other frequencies.
dcterms:subject
dbc:Telecommunications
dbo:wikiPageID
6031554
dbo:wikiPageRevisionID
1095291227
dbo:wikiPageWikiLink
dbr:Distortion dbc:Telecommunications dbr:DSL dbr:Amplitude dbr:Analog_signal dbr:Transmission_medium dbr:Reflection_(electrical) dbr:Communications_circuit dbr:Frequencies dbr:Impedance_matching dbr:Transmission_(telecommunications) dbr:Frequency_response dbr:Bandwidth_(signal_processing) dbr:Frequency_spectrum dbr:Attenuate dbr:Equalization_(communications)
owl:sameAs
yago-res:Attenuation_distortion wikidata:Q4818244 freebase:m.0flj2z n18:4TiWG
dbp:wikiPageUsesTemplate
dbt:Telcom-stub dbt:Short_description
dbo:abstract
Attenuation distortion is the distortion of an analog signal that occurs during transmission when the transmission medium does not have a flat frequency response across the bandwidth of the medium or the frequency spectrum of the signal. Attenuation distortion occurs when some frequencies are attenuated more than other frequencies. When an analog signal of constant amplitude across its frequency spectrum suffers attenuation distortion, some frequencies of the received signal arrive being greater in amplitude (louder), relative to other frequencies. To overcome the effects of attenuation distortion, communications circuits have special equalization equipment attached at the ends of the circuit or in between, designed to attenuate the signal evenly across the frequency spectrum, or to allow the signal to be received at equal amplitude for all frequencies. Attenuation distortion can still occur in a properly equipped circuit if this equalization filter is not properly maintained or adjusted. In DSL circuits, echoes due to impedance mismatch often cause attenuation distortion so severe that some frequencies must be automatically mapped out and not used.
gold:hypernym
dbr:Distortion
prov:wasDerivedFrom
wikipedia-en:Attenuation_distortion?oldid=1095291227&ns=0
dbo:wikiPageLength
1631
foaf:isPrimaryTopicOf
wikipedia-en:Attenuation_distortion