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.