diff --git a/app/src/main/cpp/PlaybackEngine.cpp b/app/src/main/cpp/PlaybackEngine.cpp
index e292615..f5d4623 100644
--- a/app/src/main/cpp/PlaybackEngine.cpp
+++ b/app/src/main/cpp/PlaybackEngine.cpp
@@ -233,7 +233,7 @@ void PlaybackEngine::musicFeedThread() {
         if(haveTimeRatio.load()) {
             double ratio = timeRatio.load();
             stretcher.setTimeRatio(ratio);
-            stretcher.setPitchScale(ratio);
+            stretcher.setPitchScale(1.0 / ratio);
             haveTimeRatio.store(false);
         }