*영* 스토어

*영*

개인

팔로워0 팔로우

소개

등록된 소개글이 없습니다.

전문분야 등록된 전문분야가 없습니다.

판매자 정보

학교정보

입력된 정보가 없습니다.

직장정보

입력된 정보가 없습니다.

자격증

입력된 정보가 없습니다.

판매지수

판매중 자료수

1개
전체 판매량

13개
최근 3개월 판매량

0개
자료후기 점수

-
자료문의 응답률

-

전체자료 1개

MATLAB으로 음 만들기 (가요) 및 C4.4.3 벨소리 만들기

아이유 - 너의의미Matlab을 이용하여 만들어 보았습니다.1) 음계의 주파수 알기.=> 각 음계의 주파수는 이 그림을 참고하여 만들었습니다.2) 갈끔한 소리를 얻기위한 ASDRASDR이란 Attack-Decay-Sustain-Release입니다.Attack은 어떤 소리가 시작되고 난 후 그 소리의 크기의 최대치까지 도달하는데 걸리는 시간Decay는 도달한 소리의 크기의 최대치에서부터 Sustain까지 도달하는데 걸리는 시간Sustain은 Relase까지 도달하는데 걸리는 시간.Release는 소리의 잔향의 길이를 조절한다.이 ASDR을 잘 합성하면 음의 질에 영향을 미치고 리얼한 연주구현이 될 수 있다.3) MATLAB 코드입니다.function music_iuglobal fs;fs=12000;x=[];x1=note(523.3,0.5); x=[x x1]; %도x1=note(659.3,0.5); x=[x x1]; %미x1=note(0,0.5); x=[x x1];x1=note(392.0,0.5); x=[x x1]; %낮은솔x1=note(587.4,0.5); x=[x x1]; %레x1=note(659.3,0.5); x=[x x1]; %미x1=note(587.4,0.25); x=[x x1]; %레x1=note(440,0.25); x=[x x1]; %낮은 라x1=note(440,0.5); x=[x x1]; %낮은 라x1=note(523.3,2); x=[x x1]; %도x1=note(0,0.3); x=[x x1];x1=note(523.3,0.25); x=[x x1]; %도x1=note(659.3,0.25); x=[x x1]; %미x1=note(587.4,0.25); x=[x x1]; %레x1=note(523.3,0.5); x=[x x1]; %도x1=note(880,0.25); x=[x x1]; %라x1=note(784,0.25); x=[x x1]; %솔x1=note(880,0.5); x=[x x1]; %라x1=note(0,0.25); x=[x x1];x1=note(65x1]; %미x1=note(0,0.5); x=[x x1];x1=note(392.0,0.5); x=[x x1]; %낮은솔x1=note(587.4,0.5); x=[x x1]; %레x1=note(659.3,0.5); x=[x x1]; %미x1=note(587.4,0.25); x=[x x1]; %레x1=note(440,0.25); x=[x x1]; %낮은 라x1=note(440,0.5); x=[x x1]; %낮은 라x1=note(523.3,2); x=[x x1]; %도x1=note(523.3,0.25); x=[x x1]; %도x1=note(523.3,0.25); x=[x x1]; %도x1=note(523.3,0.25); x=[x x1]; %도x1=note(523.3,0.25); x=[x x1]; %도x1=note(659.3,0.25); x=[x x1]; %미x1=note(587.4,0.25); x=[x x1]; %레x1=note(523.3,0.25); x=[x x1]; %도x1=note(880,0.25); x=[x x1]; %라x1=note(784,0.25); x=[x x1]; %솔x1=note(880,0.5); x=[x x1]; %라x1=note(0,0.25); x=[x x1];x1=note(659.3,0.5); x=[x x1]; %미x1=note(784,0.75); x=[x x1]; %솔x1=note(880,0.25); x=[x x1]; %라x1=note(880,0.5); x=[x x1]; %라x1=note(659.3,0.25); x=[x x1]; %미x1=note(587.4,0.25); x=[x x1]; %레x1=note(659.3,0.25); x=[x x1]; %미x1=note(587.4,2); x=[x x1]; %레x1=note(0,1); x=[x x1];x1=note(698.4,0.25); x=[x x1]; %파x1=note(698.4,0.25); x=[x x1]; %파x1=note(698.4,0.25); x=[x x1]; %파x1=note(698.4,0. x1]; %파x1=note(698.4,0.25); x=[x x1]; %파x1=note(698.4,0.25); x=[x x1]; %파x1=note(698.4,0.5); x=[x x1]; %파x1=note(698.4,0.25); x=[x x1]; %파x1=note(784,0.25); x=[x x1]; %솔x1=note(880,0.5); x=[x x1]; %라x1=note(784,0.25); x=[x x1]; %솔x1=note(784,0.75); x=[x x1]; %솔x1=note(659.3,0.25); x=[x x1]; %미x1=note(587.4,2); x=[x x1]; %레x1=note(440,0.25); x=[x x1]; %낮은 라x1=note(493.9,0.25); x=[x x1]; %낮은 시x1=note(523.3,1); x=[x x1]; %도x1=note(440,0.25); x=[x x1]; %낮은 라x1=note(493.9,0.25); x=[x x1]; %낮은 시x1=note(523.3,0.25); x=[x x1]; %도x1=note(587.4,1.5); x=[x x1]; %레x1=note(440,0.25); x=[x x1]; %낮은 라x1=note(493.9,0.25); x=[x x1]; %낮은 시x1=note(523.3,0.25); x=[x x1]; %도x1=note(523.3,0.25); x=[x x1]; %도x1=note(523.3,0.5); x=[x x1]; %도x1=note(587.4,0.25); x=[x x1]; %레x1=note(440,1); x=[x x1]; %낮은 라x1=note(392,0.25); x=[x x1]; %낮은 솔x1=note(659.3,1); x=[x x1]; %미x1=note(659.3,0.25); x=[x x1]; %미x1=note(659.3,0.25); x=[x x1]; %미x1=note(659.3,0.5); x=[x x1]; %미x1=note(659.3,1); x=[x x1]; %미x1=note(0,0.5); ; x=[x x1]; %낮은 시x1=note(523.3,0.3); x=[x x1]; %도x1=note(587.4,0.7); x=[x x1]; %레x1=note(440,0.25); x=[x x1]; %낮은 라x1=note(493.9,0.25); x=[x x1]; %낮은 시x1=note(523.3,1); x=[x x1]; %도x1=note(523.3,0.5); x=[x x1]; %도x1=note(587.4,0.25); x=[x x1]; %레x1=note(440,1); x=[x x1]; %낮은 라x1=note(0,0.25); x=[x x1];x1=note(392,0.25); x=[x x1]; %낮은 솔x1=note(659.3,0.5); x=[x x1]; %미x1=note(659.3,0.5); x=[x x1]; %미x1=note(659.3,0.25); x=[x x1]; %미x1=note(659.3,0.5); x=[x x1]; %미x1=note(659.3,0.5); x=[x x1]; %미x1=note(659.3,0.7); x=[x x1]; %미x1=note(0,0.25); x=[x x1];x1=note(523.3,0.25); x=[x x1]; %도x1=note(523.3,0.25); x=[x x1]; %도x1=note(587.4,0.25); x=[x x1]; %레x1=note(659.3,0.25); x=[x x1]; %미x1=note(587.4,0.25); x=[x x1]; %레x1=note(587.4,1); x=[x x1]; %레sound(x,fs); % 음악재생audiowrite('iu.wav',x,fs);returnfunction [x]=note(f,d) %자연스러운 음을 얻기위한 합성global fs;T=fix(fs*d); % fix : 0쪽에 가까운 정수를 찾음t=0:T;x=0.9*sin(2*pi*f/fs*t);x=x-0.4*sin(2*pi*0.5*f/fs*t);x=x-0.5*sin(2*pi*4*f/fs*t);x=x-0.3*sin(2*pi*4*f/fs*t);a작성을 실시함.)1. sound()함수를 이용하여 그 주파수로 연주해서 소리를 듣는다.bellenv함수 정의function yy = bellenv(tau, dur, fsamp)% BELLENV produces envelope function for bell sounds%% usage: yy = bellenv(tau, dur, fsamp);%% Where tau = time constant% dur = duration fo the envelope% fsamp = sampling frequency%% Returns:% yy = decaying exponential envelope%% note: produces exponential decay for positive tau.tt=[0:(1/fsamp):dur];yy=exp(-tt./tau);bell함수 정의function [xx, fi_t, tt] = bell(ff, Io, tau, dur, fsamp)% BELL produce bell sound%% usage: xx = bell(ff, Io, tau, dur, fsamp)%% Where: ff = frequency vector( containing fc and fm)% Io = scale factor for modulation index% tau = decay parameter for A(t) and I(t)% fsamp = sampling ratett=[0:(1/fsamp):dur];A_t=bellenv(tau,dur,fsamp);I_t=Io*bellenv(tau,dur,fsamp);xx=A_t.*cos((2*pi*ff(1)*tt) + I_t.*cos((2*pi*ff(2)*tt)-(pi/2))-(pi/2));% Erg?nzung f?r 4.3 c. :fi_t = (1/(2*pi))*diff((2*pi*ff(1)*tt)+ I_t.*cos((2*pi*ff(2)*tt)-(pi/2))-(pi/2))./diff(tt);CASE1와 5에 대한 벨소리.[xx1, tt1]=b그려라.

공학/기술| 2014.11.14| 8페이지| 1,500원| 조회(548)

디지털신호처리, 아이유, 먼저배우는dsp, c4.4.3, matlab으로 노래만..

미리보기

닫기