• **[[2009 Fall Real Analysis MA440 Min Chen|MA 440 Fall 2009 Prof. Chen]]
    13 KB (1,570 words) - 13:53, 7 August 2018
  • **[[Practice sampling pure frequencies A ECE438F1|Playing an A 440 with MATLAB]]
    6 KB (801 words) - 22:04, 19 April 2015
  • the cosine signal is <math>x(t)=cos(2\pi 440 t)</math>. Since <math>\frac{2\pi 440}{1000}</math> is between <math>-\pi </math> and <math>\pi</math>, so for <m
    4 KB (598 words) - 20:05, 16 March 2015
  • ...ncy of the nth key is calculated from the equation: f(n) = 2^((n-49)/12) * 440 Hz (a’ = A4 = A440 is the 49th key on the idealized piano)
    6 KB (1,002 words) - 22:08, 29 November 2015
  • F_c is initialized at 440 Hz, but it is mapped to the horizontal position of the mouse in the window.
    6 KB (1,048 words) - 16:58, 24 April 2017
  • centerFreq = 440; case 'h': pitch = 440; break;
    8 KB (849 words) - 16:52, 24 April 2017
  • ...to adjust the amplitude and frequency of the signal. The GUI defaults to a 440 Hz signal of 1 second direction with an amplitude of 10 when the GUI opens.
    1 KB (226 words) - 11:40, 20 April 2018
  • <math> \phantom{aaaa} = \cos \left (2 \pi 440(t - 7) \right ) </math> <math> \phantom{aaa} = \frac{1}{2} \int_{-\infty}^{\infty} e^{j 2 \pi 440 (t - 7)} d \omega
    5 KB (865 words) - 16:23, 2 December 2018
  • A5 = sin(2*pi*440*t1);<br /> A54 = sin(2*pi*440*t4);<br />
    3 KB (603 words) - 00:55, 3 December 2018
  • ...en up the file ''Dirty_A440.wav''. This file contains a computer generated 440 Hz signal, recorded in a noisy room. ...his, notice that the loudest (tallest) peak lies just after 400 Hz (around 440).
    6 KB (1,077 words) - 20:29, 7 April 2019
  • ...and A. The frequencies of these notes in Hz are 329.63, 369.99, 415.3, and 440, respectively. These frequencies are designated in MATLAB along with a time A = 440;
    2 KB (357 words) - 14:38, 26 April 2019

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Ph.D. 2007, working on developing cool imaging technologies for digital cameras, camera phones, and video surveillance cameras.

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