View source for 2019 Spring ECE 301 Boutin 21 Savage in MATLAB Jeff Rodrigues - Rhea

[[Category:2019 Spring ECE 301 Boutin]]
[[Category:ECE301]]
[[Category:ECE]]
[[Category:slecture]]


<center><font size= 4>21 Savage in MATLAB</font size>

A [http://www.projectrhea.org/learning/slectures.php slecture] by [[ECE]] student Jeff Rodrigues

Partly based on the [[https://www.projectrhea.org/rhea/index.php/2019_Spring_ECE_301_Boutin|ECE301 Spring 2019]] lecture material of Boutin.
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==Introduction==
21 Savage is a prolific and talented artist. His debut studio album, "Issa Album", came with the lead single "Bank Account", which reached 12th on the Billboard Hot 100. This song is a suitable choice to reproduce in MATLAB, as it has a simple yet catchy tune. 

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==How it's Done==
Playing the main track of "Bank Account" in MATLAB requires four notes: E, F#, A♭, 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 step. Then, the note frequencies are ordered in a vector 'notes' according to the song, which is then used to input each frequency into a sine wave. The 'reshape' and 'soundsc' functions are used to process and then play the signal.

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==The Code==
clear all

Fs = 8000;

delta = 1/Fs;

t = 0:delta:0.4;

%Frequencies of the notes

E = 329.63;

A_flat = 415.3;

F_sharp = 369.99;

A = 440;

notes = [E; A_flat; F_sharp; A_flat; E; A_flat; F_sharp; A_flat; E; A_flat; F_sharp; A_flat; A; A_flat; E; A_flat; E; A_flat; F_sharp; A_flat; E; A_flat; F_sharp; A_flat; E; A_flat; F_sharp; A_flat; A; A_flat; E; A_flat];

x = sin(2*pi*notes*t); 

song = reshape(x',32*length(t),1);

soundsc(song,1/delta)

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==References==
*https://www.youtube.com/watch?v=7N-kgbVjRuc - the song
*http://pages.mtu.edu/~suits/notefreqs.html - frequencies of notes
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==[[2019_Spring_ECE_301_Boutin_21 Savage in MATLAB_Jeff Rodrigues_comments | Questions and comments]]==
If you have any questions, comments, etc. please post them [[2019_Spring_ECE_301_Boutin_21 Savage in MATLAB_Jeff Rodrigues_comments|here]].
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[[https://www.projectrhea.org/rhea/index.php/2019_Spring_ECE_301_Boutin|Back to 2019 Spring ECE 301 Boutin]]
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