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A harmonic sound is said to have a missing fundamental, suppressed fundamental, or phantom fundamental when its overtones suggest a fundamental frequency but the sound lacks a component at the fundamental frequency itself.The brain perceives the pitch of a tone not only by its fundamental frequency, but also by the periodicity implied by the relationship between the higher harmonics; we may perceive the same pitch (perhaps with a different timbre) even if the fundamental frequency is missing from a tone.

Attributes	Values
rdf:type	yago:WikicatAuditoryIllusions yago:WikicatWaves yago:Abstraction100002137 yago:Appearance105939432 yago:Cognition100023271 yago:Content105809192 yago:Event100029378 yago:Happening107283608 yago:Illusion105939636 yago:Movement107309781 yago:PsychologicalFeature100023100 yago:Representation105926676 yago:YagoPermanentlyLocatedEntity yago:Wave107352190
rdfs:label	Efekt chybějícího základního tónu (cs) Residualton (de) Fondamentale manquante (fr) Missing fundamental (en) Brakująca częstotliwość podstawowa (pl) Fundamental ausente (pt) 消失的基頻 (zh)
rdfs:comment	Efekt chybějícího základního tónu je sluchový klam, jehož principem je fakt, že lidské ucho vnímá sadu alikvotních tónů jako tón určité barvy, jehož výška závisí na základní frekvenci, bez ohledu na to, zda je složka se základní frekvencí přítomná. (cs) Residualton oder Residuum (von lateinisch residuum ‚Rest‘) ist ein von eingeführter Begriff für ein psychoakustisches Phänomen. Bei der Präsentation eines akustischen Signals in Form einer periodischen Schwingung, bei der der Grundton nur sehr schwach oder gar nicht vorhanden ist, ergibt sich trotzdem die Wahrnehmung einer Tonhöhe, die diesem fehlenden Grundton entspricht. Auch von der Klangfarbe her wird das Fehlen des Grundtons oft weniger deutlich empfunden, als zu erwarten wäre. Diesen „hinzugefügten“ Grundton bezeichnet man als Residualton. (de) Mówi się, że dźwięk ma brakującą częstotliwość podstawową, gdy jego nadtony (tony składowe górne) sugerują istnienie częstotliwości podstawowej, ale dźwięk jej samej nie zawiera. Mózg postrzega wysokość tonu nie tylko dzięki częstotliwości podstawowej, ale również dzięki jego składowym harmonicznym.Na przykład gdy dźwięk ma częstotliwość 100 Hz, towarzyszą mu również wyższe harmoniczne będące jego całkowitą wielokrotnością, tj. 200, 300, 400, 500... Hz. Małe głośniki mogą nie wytwarzać częstotliwości 100 Hz, ale jednak ją słyszymy. (pl) 消失的基頻（missing fundamental）是心理聲學（psychoacoustics）領域常被談論的現象。週期訊號的基頻即為訊號的音高，但基頻訊號的強度大小卻不一定大過泛音強度大小，有時基頻訊號的強度大小甚至為零，這種情形即為我們所謂的消失的基頻。在日常生活中，一般的樂器的聲音均是由基頻與倍頻（泛音）組合而成，而基頻就是影響聲音音高的主要因素之一。然而，當我們將基頻的強度以人為得方式調整為零時，會發現被調整過後的聲音音高仍舊不變。此一現象雖然讓音高在頻譜上的判別更加困難，但也被應用於訊號處理領域。 (zh) A harmonic sound is said to have a missing fundamental, suppressed fundamental, or phantom fundamental when its overtones suggest a fundamental frequency but the sound lacks a component at the fundamental frequency itself.The brain perceives the pitch of a tone not only by its fundamental frequency, but also by the periodicity implied by the relationship between the higher harmonics; we may perceive the same pitch (perhaps with a different timbre) even if the fundamental frequency is missing from a tone. (en) Il est dit qu'un son harmonique dispose d'une fondamentale manquante, d'une fondamentale supprimée voire d'une fondamentale fantôme lorsque ses harmoniques suggèrent une fréquence fondamentale, mais que le son ne dispose pas d'une composante à la fréquence fondamentale elle-même. Par exemple, lorsqu'une note – qui n'est pas une tonalité pure – a une hauteur de 100 Hz, les fréquences de ses composantes seront des multiples entiers de cette valeur : par exemple 100, 200, 300, 400, 500... Hz. (fr) Uma fundamental ausente é uma frequência fundamental de uma série harmônica que não é audível, mas que pode ser inferida devido à presença das frequências superiores da série. Esta é uma espécie de ilusão auditiva. (pt)
foaf:depiction
dct:subject	Psychoacoustics Waves
Wikipage page ID	292200 (xsd:integer)
Wikipage revision ID	1084386414 (xsd:integer)
Link from a Wikipage to another Wikipage	Psychoacoustics Scientific pitch notation Psychoacoustics Melody Christina Aguilera Cochlea Effects unit Greatest common divisor Missy Elliott Mýa Concert pitch Phase shift Lil' Kim MRI Subharmonic Fundamental frequency Harmonic Harmonic series (music) Pitch (music) Plug-in (computing) Autocorrelation Timbre Timpani Waves Audio Headphones Subwoofer Violin Magnetoencephalography Resultant tone Heidelberg University Hertz J. C. R. Licklider Tel Aviv Telephones Waves Lady Marmalade High-pass filter Pure tone Audio crossover Pink (singer) Pipe organ Sound Overtone Pitch (psychophysics) Inharmonic
Link from a Wikipage to an external page	http://www.ihear.com/Pitch/paradoxical.html http://www.nature.com/neuro/journal/v8/n9/abs/nn1530.html https://web.archive.org/web/20131213012614/http:/www.hydrogenaudio.org/forums/lofiversion/index.php/t40690.html
sameAs	Missing fundamental Missing fundamental Missing fundamental Missing fundamental Missing fundamental Missing fundamental Missing fundamental Missing fundamental Missing fundamental Missing fundamental Missing fundamental Missing fundamental
dbp:wikiPageUsesTemplate	dbt:Auditory_illusions dbt:Audio

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