function yy=genera(F1,F2,Fs,yn,td,deltat,t)
%GENERA UN TONO DTMF
%Este programa es parte del programa principal GDTMF
%se puede usar para otros propósitos
%pero en caso de usarse para generación de múltiples tonos DTMF
%debe estar en el mismo directorio que el programa principal.
%yy=genera(F1,F2,Fs,yn,td,deltat,t)
%F1 y F2 son las frecuencias que definen el tono DTMF
%Fs 	es la frecuencia de muestreo
%yn 	es la señal en la cual se generará el archivo con tdos los tonos DTMF
%td 	es el tiempo que dura el silencio entre tono y tono
%deltat es el delta de tiempo (incremento de t entre muestra y muestra)
%t  vector de tiempo
%
%El tono generado se guarda en la variable yy
y1=0.15*sin(2*pi*F1*t);
y2=0.15*sin(2*pi*F2*t);
y=y1+y2;
%se inserta silencio de tiempo predeterminado
yy=[yn y zeros(1,td/deltat)];%se agrega silencio de td segundos al final
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%Diseñado para el proyecto "Detección de tonos DTMF usando el algoritmo de Goertzel" del
%curso de Procesamiento Digital de Señales
%
%Integrantes del grupo:
%
% - Miguel Rosadio Rojas
% - Julio Manco Vasquez
% - Jaime Castro Amaro
%
%Copyrigth Diciembre del 2003
%Todos los derechos reservados
%Se permite el uso del código siempre y cuando se mencione la fuente de donde lo obtuvo.
%http://dsp_peru.tripod.com
%
%									Pontificica Universidad Católica del Perú
%										Facultad de Ciencias e Ingeniería
%										Sección Electricidad y Electrónica														
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

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