diff --git a/cmd/Makefile b/cmd/Makefile
index e4c5e84..54be081 100644
--- a/cmd/Makefile
+++ b/cmd/Makefile
@@ -28,9 +28,9 @@ examples: out/stretch
 TEST_WAV ?= "inputs/voice.wav"
 
 dev: out/stretch
-	out/stretch --time=0.8 --semitones=12 $(TEST_WAV) out/shift.wav
-	out/stretch --time=0.8 --semitones=12 --formant-comp $(TEST_WAV) out/shift-fc.wav
-	out/stretch --time=0.8 --semitones=12 --formant-comp --formant=3 $(TEST_WAV) out/shift-fc-f3.wav
+	out/stretch --time=0.8 --semitones=10 $(TEST_WAV) out/shift.wav
+	out/stretch --time=0.8 --semitones=10 --formant-comp $(TEST_WAV) out/shift-fc.wav
+	out/stretch --time=0.8 --semitones=10 --formant-comp --formant=3 $(TEST_WAV) out/shift-fc-f3.wav
 
 clean:
 	rm -rf out
@@ -40,4 +40,4 @@ clean:
 cmake:
 	# CMAKE_BUILD_TYPE is needed for single-config generators (e.g. Makefiles)
 	cmake -B out/build -DCMAKE_BUILD_TYPE=Release
-	cmake --build out/build --config Release
\ No newline at end of file
+	cmake --build out/build --config Release
diff --git a/signalsmith-stretch.h b/signalsmith-stretch.h
index 52af7f2..6d68040 100644
--- a/signalsmith-stretch.h
+++ b/signalsmith-stretch.h
@@ -874,7 +874,7 @@ private:
 		for (int b = 0; b < bands; ++b) {
 			formantMetric[b] = std::sqrt(std::sqrt(formantMetric[b]));
 		}
-		Sample slew = 1/(freqEstimate*0.5 + 1);
+		Sample slew = 1/(freqEstimate*0.75 + 1);
 		Sample e = 0;
 		for (int repeat = 0; repeat < 1; ++repeat) {
 			for (int b = bands - 1; b >= 0; --b) {