import numpy as np
from scipy.io import wavfile
from ATK.Core import Int16InPointerFilter, Int16OutPointerFilter
from ATK.Tools import FloatMiddleSideFilter, FloatVolumeFilter
sampling_rate, data = wavfile.read("stereofile.wav")
infilter = Int16InPointerFilter(data, True)
infilter.set_output_sampling_rate(sampling_rate)
print infilter.get_nb_output_ports()
assert infilter.get_nb_output_ports() == 2
msfilter = FloatMiddleSideFilter()
msfilter.set_input_sampling_rate(sampling_rate)
msfilter.set_input_port(0, infilter, 0)
msfilter.set_input_port(1, infilter, 1)
volumefilter = FloatVolumeFilter(1)
volumefilter.set_input_sampling_rate(sampling_rate)
volumefilter.set_input_port(0, msfilter, 1)
volumefilter.set_volume(.5)
msmergefilter = FloatMiddleSideFilter()
msmergefilter.set_input_sampling_rate(sampling_rate)
msmergefilter.set_input_port(0, msfilter, 0)
msmergefilter.set_input_port(1, volumefilter, 0)
volumefilter2 = FloatVolumeFilter(2)
