diff --git a/modules/audio_processing/aec3/decimator.cc b/modules/audio_processing/aec3/decimator.cc
index 135a771a7c..75aa33134f 100644
--- a/modules/audio_processing/aec3/decimator.cc
+++ b/modules/audio_processing/aec3/decimator.cc
@@ -35,6 +35,12 @@ const CascadedBiQuadFilter::BiQuadCoefficients kLowPassFilterCoefficients8 = {
     {-1.56101808f, 0.64135154f}};
 constexpr int kNumFilters8 = 4;
 
+// b, a = signal.butter(2, 1000/8000.0, 'highpass', analog=False)
+const CascadedBiQuadFilter::BiQuadCoefficients kHighPassFilterCoefficients4 = {
+    {0.75707638f, -1.51415275f, 0.75707638f},
+    {-1.45424359f, 0.57406192f}};
+constexpr int kNumFiltersHP4 = 1;
+
 }  // namespace
 
 Decimator::Decimator(size_t down_sampling_factor)
@@ -46,7 +52,8 @@ Decimator::Decimator(size_t down_sampling_factor)
                                             : kLowPassFilterCoefficients2),
           down_sampling_factor_ == 4
               ? kNumFilters4
-              : (down_sampling_factor_ == 8 ? kNumFilters8 : kNumFilters2)) {
+              : (down_sampling_factor_ == 8 ? kNumFilters8 : kNumFilters2)),
+      high_pass_filter_(kHighPassFilterCoefficients4, kNumFiltersHP4) {
   RTC_DCHECK(down_sampling_factor_ == 2 || down_sampling_factor_ == 4 ||
              down_sampling_factor_ == 8);
 }
@@ -60,6 +67,10 @@ void Decimator::Decimate(rtc::ArrayView<const float> in,
   // Limit the frequency content of the signal to avoid aliasing.
   low_pass_filter_.Process(in, x);
 
+  // High-pass filter to reduce the impact of near-end noise.
+  if (down_sampling_factor_ == 4)
+    high_pass_filter_.Process(x, x);
+
   // Downsample the signal.
   for (size_t j = 0, k = 0; j < out.size(); ++j, k += down_sampling_factor_) {
     RTC_DCHECK_GT(kBlockSize, k);
diff --git a/modules/audio_processing/aec3/decimator.h b/modules/audio_processing/aec3/decimator.h
index 7418a26fb0..e6922e0ffa 100644
--- a/modules/audio_processing/aec3/decimator.h
+++ b/modules/audio_processing/aec3/decimator.h
@@ -31,6 +31,7 @@ class Decimator {
  private:
   const size_t down_sampling_factor_;
   CascadedBiQuadFilter low_pass_filter_;
+  CascadedBiQuadFilter high_pass_filter_;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(Decimator);
 };
diff --git a/modules/audio_processing/aec3/decimator_unittest.cc b/modules/audio_processing/aec3/decimator_unittest.cc
index e77a990f9c..e9ab21b70c 100644
--- a/modules/audio_processing/aec3/decimator_unittest.cc
+++ b/modules/audio_processing/aec3/decimator_unittest.cc
@@ -99,21 +99,6 @@ TEST(Decimator, NoLeakageFromUpperFrequencies) {
   }
 }
 
-// Verifies that the impact of low-frequency content is small during the
-// downsampling.
-TEST(Decimator, NoImpactOnLowerFrequencies) {
-  float input_power;
-  float output_power;
-  for (auto rate : {8000, 16000, 32000, 48000}) {
-    for (auto down_sampling_factor : kDownSamplingFactors) {
-      ProduceDebugText(rate);
-      ProduceDecimatedSinusoidalOutputPower(rate, down_sampling_factor, 200.f,
-                                            &input_power, &output_power);
-      EXPECT_LT(0.7f * input_power, output_power);
-    }
-  }
-}
-
 #if RTC_DCHECK_IS_ON && GTEST_HAS_DEATH_TEST && !defined(WEBRTC_ANDROID)
 // Verifies the check for the input size.
 TEST(Decimator, WrongInputSize) {