#!/usr/bin/python

import sys, os, string

from gnuradio import gr
from gnuradio import audio

def build_graph ():
    samplings_frek = raw_input("Samplingsfrekvens (Hz): ")
    amplitud_1 = raw_input("Signalamplitud (V): ")
    frek_1 = raw_input("Signalfrekvens (Hz): ")
    amplitud_2 = raw_input("Barvagsamplitud (V): ")
    frek_2 = raw_input("Barvagfrekvens (Hz): ")

    fg = gr.flow_graph ()
    src0 = gr.sig_source_f (int(samplings_frek), gr.GR_SIN_WAVE, int(frek_1), float(amplitud_1))
    src1 = gr.sig_source_f (int(samplings_frek), gr.GR_SIN_WAVE, int(frek_2), float(amplitud_2))
    dst = audio.sink (int(samplings_frek))
    multiplier = gr.multiply_ff ()
    fg.connect ((src0, 0), (multiplier, 0))
    fg.connect ((src1, 0), (multiplier, 1))
    fg.connect (multiplier, (dst, 0))

    return fg

fg = build_graph ()
fg.start ()
raw_input ("Tryck Enter for att avsluta!")
fg.stop ()