diff --git a/modules/audio_processing/audio_processing_impl.cc b/modules/audio_processing/audio_processing_impl.cc
index 0caa1422f0..554deadd3e 100644
--- a/modules/audio_processing/audio_processing_impl.cc
+++ b/modules/audio_processing/audio_processing_impl.cc
@@ -1792,8 +1792,10 @@ void AudioProcessingImpl::InitializeGainController2() {
 
 void AudioProcessingImpl::InitializeResidualEchoDetector() {
   RTC_DCHECK(private_submodules_->echo_detector);
-  private_submodules_->echo_detector->Initialize(proc_sample_rate_hz(),
-                                                 num_proc_channels());
+  private_submodules_->echo_detector->Initialize(
+      proc_sample_rate_hz(), num_proc_channels(),
+      formats_.render_processing_format.sample_rate_hz(),
+      formats_.render_processing_format.num_channels());
 }
 
 void AudioProcessingImpl::InitializePostProcessor() {
diff --git a/modules/audio_processing/include/audio_processing.h b/modules/audio_processing/include/audio_processing.h
index 33ecf89340..d31174ac24 100644
--- a/modules/audio_processing/include/audio_processing.h
+++ b/modules/audio_processing/include/audio_processing.h
@@ -1092,7 +1092,10 @@ class CustomProcessing {
 class EchoDetector {
  public:
   // (Re-)Initializes the submodule.
-  virtual void Initialize(int sample_rate_hz, int num_channels) = 0;
+  virtual void Initialize(int capture_sample_rate_hz,
+                          int num_capture_channels,
+                          int render_sample_rate_hz,
+                          int num_render_channels) = 0;
 
   // Analysis (not changing) of the render signal.
   virtual void AnalyzeRenderAudio(rtc::ArrayView<const float> render_audio) = 0;
diff --git a/modules/audio_processing/residual_echo_detector.cc b/modules/audio_processing/residual_echo_detector.cc
index cef9b2954a..f506579bad 100644
--- a/modules/audio_processing/residual_echo_detector.cc
+++ b/modules/audio_processing/residual_echo_detector.cc
@@ -177,8 +177,10 @@ void ResidualEchoDetector::AnalyzeCaptureAudio(
                               : 0;
 }
 
-void ResidualEchoDetector::Initialize(int /*sample_rate_hz*/,
-                                      int /*num_channels*/) {
+void ResidualEchoDetector::Initialize(int /*capture_sample_rate_hz*/,
+                                      int /*num_capture_channels*/,
+                                      int /*render_sample_rate_hz*/,
+                                      int /*num_render_channels*/) {
   render_buffer_.Clear();
   std::fill(render_power_.begin(), render_power_.end(), 0.f);
   std::fill(render_power_mean_.begin(), render_power_mean_.end(), 0.f);
diff --git a/modules/audio_processing/residual_echo_detector.h b/modules/audio_processing/residual_echo_detector.h
index e8ae552d6c..5d18ecbb22 100644
--- a/modules/audio_processing/residual_echo_detector.h
+++ b/modules/audio_processing/residual_echo_detector.h
@@ -37,7 +37,10 @@ class ResidualEchoDetector : public EchoDetector {
   void AnalyzeCaptureAudio(rtc::ArrayView<const float> capture_audio) override;
 
   // This function should be called while holding the capture lock.
-  void Initialize(int sample_rate_hz, int num_channels) override;
+  void Initialize(int capture_sample_rate_hz,
+                  int num_capture_channels,
+                  int render_sample_rate_hz,
+                  int num_render_channels) override;
 
   // This function is for testing purposes only.
   void SetReliabilityForTest(float value) { reliability_ = value; }