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Start Over Subject zvuk

1. Filipa Stanislava Kodyma Naučení o živlech, jejich moci a vlastnostech

Creator:
Filip Stanislav Kodym
Publisher:
Tiskem a nákladem Edv. Grégra
Format:
print, text, regular print, and 776 s. : il. ; 20 cm
Type:
model:monograph and TEXT
Subject:
Fyzika, zvuk, světlo, teplo, magnetismus, elektřina, 534-7, 535-2/-9, 536, 537.6, 537.1, (0.062), 6, and 53
Language:
Czech
Description:
Díl II and O zvuku, světle, teple, magnetech a mlně
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

3. Některé fyzikální a estetické aspekty hudební akustiky

Creator:
Pavluch, Jiří
Format:
print, bez média, and svazek
Type:
model:article and TEXT
Subject:
hudební akustika, zvuk, acoustics of music, sound, nauka o zvuku, 6, and 534
Language:
Czech and English
Description:
The branch of physics dealing with the physical theory of music is called musical acoustics. it has been established by Pythagoras and Eucleides who introduced and explained its fundamental concepts. They showed that basic consonant intervals were determined by small prime numbers. The introductory part of this article is devoted to the sound in general. Then it continues with the tones and their properties. It demonstrates how almost all the music is based on merely three basic intervals. The article explaines the difference between the concept of consonancy and euphony. requirements leading to creation of musical scales are set and the comae are arrived at. Finally, the tempered tuning is introduced., Hudební akustika je vlastně fyzikální teorií hudby. O její vznik se zasloužili Pythagoras a Eukleidés, kteří zavedli a vysvětlili fundamentální pojmy. Ukázali, že základní konsonantní intervaly jsou určeny malými prvočísly. Tento článek v úvodu věnuje pozornost zvuku obecně, návazně tónům a jejich vlastnostem. Demonstruje, jak téměř celá hudba spočívá pouze na třech nepřevodných intervalech. Vysvětluje, čím se liší pojmy konsonance a libozvučnost. Odvozuje, na základě jakých požadavků byla vytvořena hudební stupnice a jak vznikají komata. Jejich zanedbáním přechází k temperovanému ladění a ukazuje, do jaké míry jsou jím postiženy hudební intervaly., and Jiří Pavluch.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

4. The impact of sound exposure on heart rate variability in adolescent students

Creator:
Veternik, M, Ingrid Tonhajzerová, Jiří Míšek, Jakusova, V, Henrieta Hudečková, and Ján Jakuš
Format:
print, bez média, and svazek
Type:
model:article and TEXT
Subject:
autonomní nervový systém, zvuk, nos, autonomic nervous system, noise, heart rate variability, cardiac regulation, 14, and 612
Language:
English
Description:
Previous studies of physiological responses to music and noise showed the effect on the autonomic nervous system. The heart rate variability (HRV) has been used to assess the activation of the sympathetic and the parasympathetic nervous systems. The present study was aimed to examine HRV with exposure to four sine-wave pure tones (20 Hz, 50 Hz, 2 kHz and 15 kHz) in an environment where the sound intensity exceeded level 65 dB (A-weighted). The participants (20 adolescent girls) were lying in supine position during exposure protocol divided into 6 periods, the first time with generated sounds and the second time without sounds. In the protocol without sound exposure, the low frequency band of the HRV spectrum was increased compared to the basal state before examination (period_1: 6.05±0.29 ms2 compared to period_5: 6.56±0.20 ms2, p<0.05). The significant increase of root Mean Square of the Successive Differences (rMSSD, period_1: 4.09±0.16 s compared to period_6: 4.33±0.12 s, p<0.05) and prolongation of R to R peak (RR) interval (period_1: 889±30 ms compared to period_5: 973±30 ms, p<0.001) were observed in the protocol without sound exposure comparing to the protocol with sound exposure where only bradycardia was observed. Contrary to rather polemical data in literature our pilot study suggests that sounds (under given frequencies) have no impact on the heart rate variability and cardiac autonomic regulation., M. Veternik, I. Tonhajzerova, J. Misek, V. Jakusova, H. Hudeckova, J. Jakus., and Obsahuje bibliografii
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

5. V labyrintu zvuků aneb Několik poznámek k poeticko-hudebním albům Škrábanice a Zaškrábnutí Jaromíra Typlta a Michala Rataje

Creator:
Košnarová, Veronika
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
Jaromír Typlt, Michal Rataj, Škrábanice, intermedialita, poezie, hudba, zvuk, Scribbles, intermediality, poetry, music, and sound
Language:
Czech
Description:
This study makes a contribution towards resolving the issues surrounding the interpretation of intermedia works that experimentally combine poetry, word, music and sound. The particular subject of this analysis is a project known as Scribbles by writing duo Jaromír Typt and Michal Rataj, which has seen the light of day both in the form of live performances and on two albums (Škrábanice [Scribbles], Zaškrábnutí [Scribbles more]), on which the present essay is also based.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public