Così fan tutte ‘Prenderò quel brunettino’ (‘I’ll take the brunette one’)

Wilhelm Backhaus (‘Bachaus’ on some record labels) (26 March 1884 – 5 July 1969)^[1] was a German pianist and pedagogue. He was particularly well known for his interpretations of Mozart, Beethoven, Schumann, Chopin and Brahms. He was also much admired as a chamber musician.

https://en.wikipedia.org/wiki/Wilhelm_Backhaus

Wilhelm Backhaus was last modified: November 4th, 2019 by Jovan Stosic

Wilhelm Backhaus plays Beethoven, Piano Concerto No.4 – Karl Böhm, Wiener Symphoniker (1967)

Jovan Stosic November 4, 2019

Wilhelm Backhaus plays Beethoven, Piano Concerto No.4 – Karl Böhm, Wiener Symphoniker (1967) was last modified: November 4th, 2019 by Jovan Stosic

Octave: List of Functions for the ‘signal’ package

Engineering and technology notes

Jovan Stosic November 3, 2019

Source: List of Functions for the ‘signal’ package

Octave: List of Functions for the ‘signal’ package was last modified: November 3rd, 2019 by Jovan Stosic

Octave function reference: sinetone

Engineering and technology notes

Jovan Stosic November 3, 2019

sinetone (freq, rate, sec, ampl)

Return a sinetone of frequency freq with a length of sec seconds at sampling rate rate and with amplitude ampl. The arguments freq and ampl may be vectors of common size. The defaults are rate = 8000, sec = 1, and ampl = 64. See also: sinewave.

Source: Function Reference: sinetone

Octave function reference: sinetone was last modified: November 3rd, 2019 by Jovan Stosic

Octave function reference: butter filter

Engineering and technology notes

Jovan Stosic November 3, 2019

 sf = 800; sf2 = sf/2;
 data=[[1;zeros(sf-1,1)],sinetone(25,sf,1,1),sinetone(50,sf,1,1),sinetone(100,sf,1,1)];
 [b,a]=butter ( 1, 50 / sf2 );
 filtered = filter(b,a,data);

 clf
 subplot ( columns ( filtered ), 1, 1)
 plot(filtered(:,1),";Impulse response;")
 subplot ( columns ( filtered ), 1, 2 )
 plot(filtered(:,2),";25Hz response;")
 subplot ( columns ( filtered ), 1, 3 )
 plot(filtered(:,3),";50Hz response;")
 subplot ( columns ( filtered ), 1, 4 )
 plot(filtered(:,4),";100Hz response;")

Source: Function Reference: butter

Octave function reference: butter filter was last modified: November 3rd, 2019 by Jovan Stosic