Implement new version of the NonlinearBeamformer

webrtc/modules/audio_processing/beamformer/covariance_matrix_generator_unittest.cc

 /*
  *  Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 147 matching lines @@
                                                     kAngle,
                                                     kFrequencyBin,
                                                     kFftSize,
                                                     kNumberFrequencyBins,
                                                     kSampleRate,
                                                     geometry,
                                                     &actual_covariance_matrix);
 
   complex<float>* const* actual_els = actual_covariance_matrix.elements();
 
-  EXPECT_NEAR(actual_els[0][0].real(), 1.f, kTolerance);
-  EXPECT_NEAR(actual_els[0][1].real(), 0.9952f, kTolerance);
-  EXPECT_NEAR(actual_els[1][0].real(), 0.9952f, kTolerance);
-  EXPECT_NEAR(actual_els[1][1].real(), 1.f, kTolerance);
+  EXPECT_NEAR(actual_els[0][0].real(), 0.5f, kTolerance);
+  EXPECT_NEAR(actual_els[0][1].real(), 0.4976f, kTolerance);
+  EXPECT_NEAR(actual_els[1][0].real(), 0.4976f, kTolerance);
+  EXPECT_NEAR(actual_els[1][1].real(), 0.5f, kTolerance);
 
   EXPECT_NEAR(actual_els[0][0].imag(), 0.f, kTolerance);
-  EXPECT_NEAR(actual_els[0][1].imag(), 0.0978f, kTolerance);
-  EXPECT_NEAR(actual_els[1][0].imag(), -0.0978f, kTolerance);
+  EXPECT_NEAR(actual_els[0][1].imag(), 0.0489f, kTolerance);
+  EXPECT_NEAR(actual_els[1][0].imag(), -0.0489f, kTolerance);
   EXPECT_NEAR(actual_els[1][1].imag(), 0.f, kTolerance);
 }
 
 TEST(CovarianceMatrixGeneratorTest, TestAngledCovarianceMatrix3Mics) {
   const float kSpeedOfSound = 340;
   const float kAngle = static_cast<float>(M_PI) / 4.f;
   const float kFrequencyBin = 9;
   const float kFftSize = 512;
   const int kNumberFrequencyBins = 257;
   const int kSampleRate = 42000;
@@ skipping 10 matching lines @@
                                                     kAngle,
                                                     kFrequencyBin,
                                                     kFftSize,
                                                     kNumberFrequencyBins,
                                                     kSampleRate,
                                                     geometry,
                                                     &actual_covariance_matrix);
 
   complex<float>* const* actual_els = actual_covariance_matrix.elements();
 
-  EXPECT_NEAR(actual_els[0][0].real(), 1.f, kTolerance);
-  EXPECT_NEAR(actual_els[0][1].real(), 0.8859f, kTolerance);
-  EXPECT_NEAR(actual_els[0][2].real(), 0.5696f, kTolerance);
-  EXPECT_NEAR(actual_els[1][0].real(), 0.8859f, kTolerance);
-  EXPECT_NEAR(actual_els[1][1].real(), 1.f, kTolerance);
-  EXPECT_NEAR(actual_els[1][2].real(), 0.8859f, kTolerance);
-  EXPECT_NEAR(actual_els[2][0].real(), 0.5696f, kTolerance);
-  EXPECT_NEAR(actual_els[2][1].real(), 0.8859f, kTolerance);
-  EXPECT_NEAR(actual_els[2][2].real(), 1.f, kTolerance);
+  EXPECT_NEAR(actual_els[0][0].real(), 0.3333f, kTolerance);
+  EXPECT_NEAR(actual_els[0][1].real(), 0.2953f, kTolerance);
+  EXPECT_NEAR(actual_els[0][2].real(), 0.1899f, kTolerance);
+  EXPECT_NEAR(actual_els[1][0].real(), 0.2953f, kTolerance);
+  EXPECT_NEAR(actual_els[1][1].real(), 0.3333f, kTolerance);
+  EXPECT_NEAR(actual_els[1][2].real(), 0.2953f, kTolerance);
+  EXPECT_NEAR(actual_els[2][0].real(), 0.1899f, kTolerance);
+  EXPECT_NEAR(actual_els[2][1].real(), 0.2953f, kTolerance);
+  EXPECT_NEAR(actual_els[2][2].real(), 0.3333f, kTolerance);
 
   EXPECT_NEAR(actual_els[0][0].imag(), 0.f, kTolerance);
-  EXPECT_NEAR(actual_els[0][1].imag(), 0.4639f, kTolerance);
-  EXPECT_NEAR(actual_els[0][2].imag(), 0.8219f, kTolerance);
-  EXPECT_NEAR(actual_els[1][0].imag(), -0.4639f, kTolerance);
+  EXPECT_NEAR(actual_els[0][1].imag(), 0.1546f, kTolerance);
+  EXPECT_NEAR(actual_els[0][2].imag(), 0.274f, kTolerance);
+  EXPECT_NEAR(actual_els[1][0].imag(), -0.1546f, kTolerance);
   EXPECT_NEAR(actual_els[1][1].imag(), 0.f, kTolerance);
-  EXPECT_NEAR(actual_els[1][2].imag(), 0.4639f, kTolerance);
-  EXPECT_NEAR(actual_els[2][0].imag(), -0.8219f, kTolerance);
-  EXPECT_NEAR(actual_els[2][1].imag(), -0.4639f, kTolerance);
+  EXPECT_NEAR(actual_els[1][2].imag(), 0.1546f, kTolerance);
+  EXPECT_NEAR(actual_els[2][0].imag(), -0.274f, kTolerance);
+  EXPECT_NEAR(actual_els[2][1].imag(), -0.1546f, kTolerance);
   EXPECT_NEAR(actual_els[2][2].imag(), 0.f, kTolerance);
 }
 
 // PhaseAlignmentMasks is tested by AngledCovarianceMatrix and by
 // InitBeamformerWeights in BeamformerUnittest.
 
 }  // namespace webrtc