diff --git a/libs/qm-dsp/dsp/signalconditioning/FiltFilt.cpp b/libs/qm-dsp/dsp/signalconditioning/FiltFilt.cpp
index 13dbda0..957f902 100644
--- a/libs/qm-dsp/dsp/signalconditioning/FiltFilt.cpp
+++ b/libs/qm-dsp/dsp/signalconditioning/FiltFilt.cpp
@@ -59,6 +59,9 @@ void FiltFilt::process(double *src, double *dst, unsigned int length)
     unsigned int nFact = 3 * ( nFilt - 1);
     unsigned int nExt	= length + 2 * nFact;
 
+    // Skip filtering when input is too small
+    if (length <= nFact) return;
+
     m_filtScratchIn = new double[ nExt ];
     m_filtScratchOut = new double[ nExt ];