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  2. Sample-rate conversion - Wikipedia

    en.wikipedia.org/wiki/Sample-rate_conversion

    In method 1, a slow pre-computation (such as the Remez algorithm) can be used to obtain an optimal (per application requirements) filter design. Method 2 will work in more general cases, e.g. where the ratio of sample rates is not rational, or two real-time streams must be accommodated, or the sample rates are time-varying.

  3. Sampling (signal processing) - Wikipedia

    en.wikipedia.org/wiki/Sampling_(signal_processing)

    Functions of space, time, or any other dimension can be sampled, and similarly in two or more dimensions. For functions that vary with time, let () be a continuous function (or "signal") to be sampled, and let sampling be performed by measuring the value of the continuous function every seconds, which is called the sampling interval or sampling period.

  4. 44,100 Hz - Wikipedia

    en.wikipedia.org/wiki/44,100_Hz

    The selection of the sample rate was based primarily on the need to reproduce the audible frequency range of 20–20,000 Hz (20 kHz). The Nyquist–Shannon sampling theorem states that a sampling rate of more than twice the maximum frequency of the signal to be recorded is needed, resulting in a required rate of greater than 40 kHz.

  5. Grading systems by country - Wikipedia

    en.wikipedia.org/wiki/Grading_systems_by_country

    Upon entry into the college, student has the ability to work on the first phase of the study stage. C 35–49 Very bad The student shows that he has, to some extent, the competence criteria describing learning division. On admission to a college, student has the ability to work on the first phase of the study stage. D <34 Fail

  6. Desegregation busing - Wikipedia

    en.wikipedia.org/wiki/Desegregation_busing

    Desegregation busing (also known simply as busing or integrated busing or forced busing) was an attempt to diversify the racial make-up of schools in the United States by sending students to school districts other than their own. [1]

  7. California - Wikipedia

    en.wikipedia.org/wiki/California

    California (/ ˌ k æ l ɪ ˈ f ɔːr n j ə /) is a state in the Western Region of the United States that lies on the Pacific Coast.It borders Oregon to the north, Nevada and Arizona to the east, and shares an international border with the Mexican state of Baja California to the south.

  8. Philadelphia - Wikipedia

    en.wikipedia.org/wiki/Philadelphia

    Philadelphia (/ f ɪ l ə ˈ d ɛ l f i. ə / ⓘ fill-ə-DEL-fee-ə), colloquially referred to as Philly, is the most populous city in the U.S. state of Pennsylvania [11] and the sixth-most populous city in the United States, with a population of 1,603,797 in the 2020 census.

  9. St. Louis - Wikipedia

    en.wikipedia.org/wiki/St._Louis

    [86] [88] These crime rates are high relative to other American cities, but St. Louis index crime rates have declined almost every year since the peak in 1993 (16,648), to the 2014 level of 7,931 (which is the sum of violent crimes and property crimes) per 100,000. In 2015, the index crime rate reversed the 2005–2014 decline to a level of 8,204.