Date: Dec 12, 2012 11:21 PM
Author: Tanner Handa
Subject: Re: Matlab
"Tanner Handa" <baseballkid137@gmail.com> wrote in message <kabiok$j8$1@newscl01ah.mathworks.com>...

> bartekltg <bartekltg@gmail.com> wrote in message <kabhvn$qq8$1@node1.news.atman.pl>...

> > W dniu 2012-12-13 03:52, Tanner Handa pisze:

> > > bartekltg <bartekltg@gmail.com> wrote in message

> >

> > > so how would I be able to make my happy birthday song sound better to

> > > make the sounds shorter??

> > > This is what I have and now when i do t = linspace(0, 0.5, 0.5 *

> > > freqsamp); it make the frequencies really high pitched.

> >

> > I don't see difference in tone between

> >

> > t = linspace(0,1,freqsamp);

> > a = (sin(1.5*pi*220*t) + sin(1.5*pi*440*t));

> >

> > and

> >

> > t2= linspace(0,0.5,freqsamp/2);

> > a2 = (sin(1.5*pi*220*t2) + sin(1.5*pi*440*t2));

> >

> >

> > sound(a, freqsamp),sound(a2, freqsamp)

> >

> >

> >

> > > clear

> > > freqsamp = 10000;

> > > t = linspace(0,1,freqsamp);

> >

> > Add 'note length'

> >

> > nl = 0.4;

> >

> > t = linspace(0,nl,nl*freqsamp);

> >

> >

> > > a = sin(1.5*pi*220*t) + sin(1.5*pi*440*t);

> > > b = sin(2*pi*220*t) + sin(2*pi*440*t);

> > > c = sin(2.5*pi*220*t) + sin(2.5*pi*440*t); d = sin(3*pi*220*t) +

> > > sin(3*pi*440*t); e = sin(4*pi*220*t) + sin(4*pi*440*t);

> > > f = sin(4.5*pi*220*t) + sin(4.5*pi*440*t);

> > > g = (sin(5*pi*220*t) + sin(5*pi*440*t))/1.5; h = sin(5.5*pi*220*t) +

> > > sin(5.5*pi*440*t);

> > > i = sin(6*pi*220*t) + sin(6*pi*440*t);

> > > j = sin(6.5*pi*220*t) + sin(6.5*pi*440*t);

> >

> > OK, I think.

> > But you can create function to do this:

> >

> > a= foo (t, 1.5);

> > b= foo (t, 2) ;

> > ...

> > g= foo(t,5)/1.5;

> > ...

> >

> >

> > > sound(a, freqsamp) %HA %3

> > > sound(a, freqsamp) %ppy %3

> >

> > And there is very long pause between sounds.

> > You want to play whole song.

> >

> > sound ( [a,a,b,a,f,e,a,a,b,a,g,f], freqsamp );

> >

> > But now you haven't any pause. Create short 'pause'

> > (vector of silent;) I mean zeros) and add between every note.

> > Better: add this to function foo.

> >

> >

> > bartekltg

>

> Im not sure what foo is doing. This isn't working when I try to program this in MATLAB. I believe I understand everything else though. Can you please help me out its due tomorrow.