diff --git a/dom/media/webaudio/AudioBufferSourceNode.cpp b/dom/media/webaudio/AudioBufferSourceNode.cpp
index 051f3c2381b4..18ff145b5426 100644
--- a/dom/media/webaudio/AudioBufferSourceNode.cpp
+++ b/dom/media/webaudio/AudioBufferSourceNode.cpp
@@ -55,7 +55,6 @@ class AudioBufferSourceNodeEngine final : public AudioNodeEngine {
         mBufferSampleRate(0),
         // mResamplerOutRate is initialized in UpdateResampler().
         mChannels(0),
-        mDopplerShift(1.0f),
         mDestination(aDestination->Stream()),
         mPlaybackRateTimeline(1.0f),
         mDetuneTimeline(0.0f),
@@ -102,9 +101,6 @@ class AudioBufferSourceNodeEngine final : public AudioNodeEngine {
         // Round to nearest
         mBeginProcessing = mStart + 0.5;
         break;
-      case AudioBufferSourceNode::DOPPLERSHIFT:
-        mDopplerShift = (aParam <= 0 || mozilla::IsNaN(aParam)) ? 1.0 : aParam;
-        break;
       default:
         NS_ERROR("Bad AudioBufferSourceNodeEngine double parameter.");
     };
@@ -441,10 +437,9 @@ class AudioBufferSourceNodeEngine final : public AudioNodeEngine {
 
   int32_t ComputeFinalOutSampleRate(float aPlaybackRate, float aDetune) {
     float computedPlaybackRate = aPlaybackRate * exp2(aDetune / 1200.f);
-    // Make sure the playback rate and the doppler shift are something
-    // our resampler can work with.
+    // Make sure the playback rate is something our resampler can work with.
     int32_t rate = WebAudioUtils::TruncateFloatToInt<int32_t>(
-        mSource->SampleRate() / (computedPlaybackRate * mDopplerShift));
+        mSource->SampleRate() / computedPlaybackRate);
     return rate ? rate : mBufferSampleRate;
   }
 
@@ -574,7 +569,6 @@ class AudioBufferSourceNodeEngine final : public AudioNodeEngine {
   int32_t mBufferSampleRate;
   int32_t mResamplerOutRate;
   uint32_t mChannels;
-  float mDopplerShift;
   RefPtr<AudioNodeStream> mDestination;
 
   // mSource deletes the engine in its destructor.
@@ -814,11 +808,6 @@ void AudioBufferSourceNode::NotifyMainThreadStreamFinished() {
   MarkInactive();
 }
 
-void AudioBufferSourceNode::SendDopplerShiftToStream(double aDopplerShift) {
-  MOZ_ASSERT(mStream, "Should have disconnected panner if no stream");
-  SendDoubleParameterToStream(DOPPLERSHIFT, aDopplerShift);
-}
-
 void AudioBufferSourceNode::SendLoopParametersToStream() {
   if (!mStream) {
     return;
diff --git a/dom/media/webaudio/AudioBufferSourceNode.h b/dom/media/webaudio/AudioBufferSourceNode.h
index e0fbe543b73a..23917b9215ce 100644
--- a/dom/media/webaudio/AudioBufferSourceNode.h
+++ b/dom/media/webaudio/AudioBufferSourceNode.h
@@ -69,8 +69,6 @@ class AudioBufferSourceNode final : public AudioScheduledSourceNode,
     mLoopEnd = aEnd;
     SendLoopParametersToStream();
   }
-  void SendDopplerShiftToStream(double aDopplerShift);
-
   void NotifyMainThreadStreamFinished() override;
 
   const char* NodeType() const override { return "AudioBufferSourceNode"; }
@@ -101,8 +99,7 @@ class AudioBufferSourceNode final : public AudioScheduledSourceNode,
     LOOPSTART,
     LOOPEND,
     PLAYBACKRATE,
-    DETUNE,
-    DOPPLERSHIFT
+    DETUNE
   };
 
   void SendLoopParametersToStream();