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There are no pauses in the audio files to listen and repeat, so learners need to speak along with the recording (shadowing). [8] [9] In the app, learners can record their own voice for comparison with the recorded voice. The recorded voices are native speakers of each language, usually both a man and woman. [10]
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10 −15: 1 femtohertz (fHz) ~3 fHz: Sound waves created by a supermassive black hole in the Perseus cluster [1] 10 −14: 10 fHz ~31.71 fHz: Once every one million years 10 −12: 1 picohertz (pHz) 1.23 pHz Precession of the Earth's axis (about every 25,700 years) 10 −11: 10 pHz ~31.71 pHz: Once per millennium 10 −10: 100 pHz ~317.1 pHz ...
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Speakers vary their speed of speaking according to contextual and physical factors. A typical speaking rate for English is 4 syllables per second, [5] but in different emotional or social contexts the rate may vary, one study reporting a range between 3.3 and 5.9 syl/sec, [6] Another study found significant differences in speaking rate between story-telling and taking part in an interview.
Spanish was the official administrative language of California through the Spanish and Mexican eras, until 1848. Following the U.S. Conquest of California and the Treaty of Guadalupe-Hidalgo, the U.S Government initially guaranteed the rights of the Spanish-speaking citizens in the Mexican Cession.
In 1976, Makhoul and Cosell published the now-popular version with the 700 Hz corner frequency. [11] As Ganchev et al. have observed, "The formulae [with 700], when compared to [Fant's with 1000], provide a closer approximation of the Mel scale for frequencies below 1000 Hz, at the price of higher inaccuracy for frequencies higher than 1000 Hz."
The RAE is Spain's official institution for documenting, planning, and standardising the Spanish language. A word form is any of the grammatical variations of a word. The second table is a list of 100 most common lemmas found in a text corpus compiled by Mark Davies and other language researchers at Brigham Young University in the United States.