def filter_16(input):
import numpy as np
output = np.zeros(input.shape, dtype=np.float64)
infilter = DoubleInPointerFilter(input, False)
infilter.set_input_sampling_rate(48000)
overfilter = DoubleOversampling6points5order_16Filter()
overfilter.set_input_sampling_rate(48000)
overfilter.set_output_sampling_rate(48000 * 16)
overfilter.set_input_port(0, infilter, 0)
overdrivefilter = DoubleSimpleOverdriveFilter()
overdrivefilter.set_input_sampling_rate(48000 * 16)
overdrivefilter.set_input_port(0, overfilter, 0)
lowpassfilter = DoubleButterworthLowPassFilter()
lowpassfilter.set_input_sampling_rate(48000 * 16)
lowpassfilter.set_cut_frequency(48000)
lowpassfilter.set_order(5)
lowpassfilter.set_input_port(0, overdrivefilter, 0)
decimationfilter = DoubleDecimationFilter(1)
decimationfilter.set_input_sampling_rate(48000 * 16)
decimationfilter.set_output_sampling_rate(48000)
decimationfilter.set_input_port(0, lowpassfilter, 0)
outfilter = DoubleOutPointerFilter(output, False)
outfilter.set_input_sampling_rate(48000)
outfilter.set_input_port(0, decimationfilter, 0)
outfilter.process(input.shape[1])
return output
def Oversampling_16_test(): import numpy as np from ATK.Core import DoubleInPointerFilter, DoubleOutPointerFilter from ATK.Tools import DoubleOversampling6points5order_16Filter from numpy.testing import assert_almost_equal ref = np.sin(np.arange(16000, dtype=np.float64)[None,:] * 1000 * 2 * np.pi / 768000) input = np.ascontiguousarray(ref[:, ::16]) output = np.ascontiguousarray(np.zeros(16000, dtype=np.float64)[None,:]) inputfilter = DoubleInPointerFilter(input, False) oversamplingfilter = DoubleOversampling6points5order_16Filter() outputfilter = DoubleOutPointerFilter(output, False) inputfilter.set_output_sampling_rate(48000) oversamplingfilter.set_input_sampling_rate(48000) oversamplingfilter.set_output_sampling_rate(768000) outputfilter.set_input_sampling_rate(768000) oversamplingfilter.set_input_port(0, inputfilter, 0) outputfilter.set_input_port(0, oversamplingfilter, 0) outputfilter.process(16000) assert_almost_equal(ref[:,952:-48], output[:,1000:], decimal=1)
def filter_16(input):
import numpy as np
output = np.zeros(input.shape, dtype=np.float64)
infilter = DoubleInPointerFilter(input, False)
infilter.input_sampling_rate = 48000
overfilter = DoubleOversampling6points5order_16Filter()
overfilter.input_sampling_rate = 48000
overfilter.output_sampling_rate = 48000 * 16
overfilter.set_input_port(0, infilter, 0)
overdrivefilter = DoubleLeachTriodeFilter.build_standard_filter()
overdrivefilter.input_sampling_rate = 48000 * 16
overdrivefilter.set_input_port(0, overfilter, 0)
lowpassfilter = DoubleButterworthLowPassFilter()
lowpassfilter.input_sampling_rate = 48000 * 16
lowpassfilter.cut_frequency = 48000
lowpassfilter.order = 5
lowpassfilter.set_input_port(0, overdrivefilter, 0)
decimationfilter = DoubleDecimationFilter(1)
decimationfilter.input_sampling_rate = 48000 * 16
decimationfilter.output_sampling_rate = 48000
decimationfilter.set_input_port(0, lowpassfilter, 0)
outfilter = DoubleOutPointerFilter(output, False)
outfilter.input_sampling_rate = 48000
outfilter.set_input_port(0, decimationfilter, 0)
outfilter.process(input.shape[1])
return output
def filter_16(input): import numpy as np output = np.zeros(input.shape, dtype=np.float64) inputfilter = DoubleInPointerFilter(input, False) inputfilter.input_sampling_rate = sample_rate overfilter = DoubleOversampling6points5order_16Filter() overfilter.input_sampling_rate = sample_rate overfilter.output_sampling_rate = sample_rate * 16 overfilter.set_input_port(0, inputfilter, 0) overdrivefilter = DoubleTS9OverdriveFilter() overdrivefilter.input_sampling_rate = sample_rate * 16 overdrivefilter.set_input_port(0, overfilter, 0) overdrivefilter.drive = 0.9 lowpassfilter = DoubleButterworthLowPassFilter() lowpassfilter.input_sampling_rate = sample_rate * 16 lowpassfilter.cut_frequency = sample_rate lowpassfilter.order = 5 lowpassfilter.set_input_port(0, overdrivefilter, 0) decimationfilter = DoubleDecimationFilter(1) decimationfilter.input_sampling_rate = sample_rate * 16 decimationfilter.output_sampling_rate = sample_rate decimationfilter.set_input_port(0, lowpassfilter, 0) outfilter = DoubleOutPointerFilter(output, False) outfilter.input_sampling_rate = sample_rate outfilter.set_input_port(0, decimationfilter, 0) outfilter.process(input.shape[1]) return output
def filter_16(input):
import numpy as np
output = np.zeros(input.shape, dtype=np.float64)
inputfilter = DoubleInPointerFilter(input, False)
inputfilter.set_input_sampling_rate(sample_rate)
infilter = DoubleChamberlinFilter()
infilter.set_input_sampling_rate(sample_rate)
infilter.set_input_port(0, inputfilter, 0)
infilter.select(0)
infilter.set_attenuation(1)
infilter.set_cut_frequency(1000)
overfilter = DoubleOversampling6points5order_16Filter()
overfilter.set_input_sampling_rate(sample_rate)
overfilter.set_output_sampling_rate(sample_rate * 16)
overfilter.set_input_port(0, infilter, 0)
overdrivefilter = DoubleSD1OverdriveFilter()
overdrivefilter.set_input_sampling_rate(sample_rate * 16)
overdrivefilter.set_input_port(0, overfilter, 0)
overdrivefilter.set_drive(0.9)
lowpassfilter = DoubleButterworthLowPassFilter()
lowpassfilter.set_input_sampling_rate(sample_rate * 16)
lowpassfilter.set_cut_frequency(20000)
lowpassfilter.set_order(5)
lowpassfilter.set_input_port(0, overdrivefilter, 0)
lowpassfilter2 = DoubleButterworthLowPassFilter()
lowpassfilter2.set_input_sampling_rate(sample_rate * 16)
lowpassfilter2.set_cut_frequency(20000)
lowpassfilter2.set_order(5)
lowpassfilter2.set_input_port(0, lowpassfilter, 0)
decimationfilter = DoubleDecimationFilter(1)
decimationfilter.set_input_sampling_rate(sample_rate * 16)
decimationfilter.set_output_sampling_rate(sample_rate)
decimationfilter.set_input_port(0, lowpassfilter2, 0)
#tonefilter = DoubleSD1ToneFilter()
#tonefilter.set_input_sampling_rate(sample_rate)
#tonefilter.set_input_port(0, decimationfilter, 0)
#tonefilter.set_tone(1)
#highpassfilter = DoubleChamberlinFilter()
#highpassfilter.set_input_sampling_rate(sample_rate)
#highpassfilter.set_input_port(0, tonefilter, 0)
#highpassfilter.select(2)
#highpassfilter.set_attenuation(1)
#highpassfilter.set_cut_frequency(20)
outfilter = DoubleOutPointerFilter(output, False)
outfilter.set_input_sampling_rate(sample_rate)
#outfilter.set_input_port(0, highpassfilter, 0)
outfilter.set_input_port(0, decimationfilter, 0)
outfilter.process(input.shape[1])
return output
