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# ece45-project # ECE45-project
Audio synthesizer project created by ECE 45 students, written using the MATLAB language and MATLAB GUI
Will add member names shortly
## Function Prototypes
fuction x = envelope(input, fs, period, attack , decay, sustain, release) fuction x = envelope(input, fs, period, attack , decay, sustain, release)
where attack, decay, sustain release are percentages between 0 to 1 of the period where attack, decay, sustain release are percentages between 0 to 1 of the period
where period is the time in seconds where period is the time in seconds
function x = generate_wave(amplitude, frequency, phase, fs, duration, duty) function x = generate_wave(amplitude, frequency, phase, fs, duration, duty)
function output_timedomain = Filter(input_soundin_timedomain, Fs, LOW, MED, HIGH) function output_timedomain = Filter(input_soundin_timedomain, Fs, LOW, MED, HIGH)
where LOW, MED, HIGH are user-selected variables of any value where LOW, MED, HIGH are user-selected variables of any value
## Useful websites
- https://learningsynths.ableton.com
- https://learningsynths.ableton.com/en/playground
- https://blog.demofox.org/diy-synthesizer/
- http://portaudio.com/
- https://ccrma.stanford.edu/software/stk/
- https://cycling74.com/products/max
- http://msp.ucsd.edu/software.html

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function x = generate_sine(amplitude, frequency, phase, fs, duration) function x = generate_sine(amplitude, frequency, phase, fs, duration, duty)
%GENERATE_SINE:Arthur Lu returns a matrix of sampled sine wave, where the %GENERATE_SINE:Arthur Lu returns a matrix of sampled sine wave, where the
%phase shift is in number of periods %phase shift is in number of periods
x = zeros(1, fs * duration); x = zeros(1, fs * duration);