diff --git a/content/media/webaudio/WebAudioUtils.cpp b/content/media/webaudio/WebAudioUtils.cpp
index f9ae8c26775..9a21f9a5966 100644
--- a/content/media/webaudio/WebAudioUtils.cpp
+++ b/content/media/webaudio/WebAudioUtils.cpp
@@ -8,6 +8,7 @@
 #include "AudioNodeStream.h"
 #include "AudioParamTimeline.h"
 #include "blink/HRTFDatabaseLoader.h"
+#include "speex/speex_resampler.h"
 
 namespace mozilla {
 
@@ -69,5 +70,45 @@ WebAudioUtils::Shutdown()
   WebCore::HRTFDatabaseLoader::shutdown();
 }
 
+int
+WebAudioUtils::SpeexResamplerProcess(SpeexResamplerState* aResampler,
+                                     uint32_t aChannel,
+                                     const float* aIn, uint32_t* aInLen,
+                                     float* aOut, uint32_t* aOutLen)
+{
+#ifdef MOZ_SAMPLE_TYPE_S16
+  nsAutoTArray<AudioDataValue, WEBAUDIO_BLOCK_SIZE*4> tmp1;
+  nsAutoTArray<AudioDataValue, WEBAUDIO_BLOCK_SIZE*4> tmp2;
+  tmp1.SetLength(*aInLen);
+  tmp2.SetLength(*aOutLen);
+  ConvertAudioSamples(aIn, tmp1.Elements(), *aInLen);
+  int result = speex_resampler_process_int(aResampler, aChannel, tmp1.Elements(), aInLen, tmp2.Elements(), aOutLen);
+  ConvertAudioSamples(tmp2.Elements(), aOut, *aOutLen);
+  return result;
+#else
+  return speex_resampler_process_float(aResampler, aChannel, aIn, aInLen, aOut, aOutLen);
+#endif
+}
+
+int
+WebAudioUtils::SpeexResamplerProcess(SpeexResamplerState* aResampler,
+                                     uint32_t aChannel,
+                                     const int16_t* aIn, uint32_t* aInLen,
+                                     float* aOut, uint32_t* aOutLen)
+{
+  nsAutoTArray<AudioDataValue, WEBAUDIO_BLOCK_SIZE*4> tmp;
+#ifdef MOZ_SAMPLE_TYPE_S16
+  tmp.SetLength(*aOutLen);
+  int result = speex_resampler_process_int(aResampler, aChannel, aIn, aInLen, tmp.Elements(), aOutLen);
+  ConvertAudioSamples(tmp.Elements(), aOut, *aOutLen);
+  return result;
+#else
+  tmp.SetLength(*aInLen);
+  ConvertAudioSamples(aIn, tmp.Elements(), *aInLen);
+  int result = speex_resampler_process_float(aResampler, aChannel, tmp.Elements(), aInLen, aOut, aOutLen);
+  return result;
+#endif
+}
+
 }
 }
diff --git a/content/media/webaudio/WebAudioUtils.h b/content/media/webaudio/WebAudioUtils.h
index 777ce4135af..c525a2c781a 100644
--- a/content/media/webaudio/WebAudioUtils.h
+++ b/content/media/webaudio/WebAudioUtils.h
@@ -13,6 +13,9 @@
 #include "mozilla/FloatingPoint.h"
 #include "MediaSegment.h"
 
+// Forward declaration
+typedef struct SpeexResamplerState_ SpeexResamplerState;
+
 namespace mozilla {
 
 class AudioNodeStream;
@@ -214,6 +217,18 @@ struct WebAudioUtils {
   }
 
   static void Shutdown();
+
+  static int
+  SpeexResamplerProcess(SpeexResamplerState* aResampler,
+                        uint32_t aChannel,
+                        const float* aIn, uint32_t* aInLen,
+                        float* aOut, uint32_t* aOutLen);
+
+  static int
+  SpeexResamplerProcess(SpeexResamplerState* aResampler,
+                        uint32_t aChannel,
+                        const int16_t* aIn, uint32_t* aInLen,
+                        float* aOut, uint32_t* aOutLen);
 };
 
 }