diff --git a/python/pyarmnn/examples/speech_recognition/audio_capture.py b/python/pyarmnn/examples/speech_recognition/audio_capture.py
index 9f28d10..0c89920 100644
--- a/python/pyarmnn/examples/speech_recognition/audio_capture.py
+++ b/python/pyarmnn/examples/speech_recognition/audio_capture.py
@@ -20,7 +20,7 @@
         self.mono = True
         self.dtype = np.float32
         self.samplerate = 16000
-        self.min_samples = 167392
+        self.min_samples = 47712  # (model_input_size-1)*stride + frame_len
 
 
 class AudioCapture: