diff --git a/src/pojagi_dsp/channel/ecg/generator/wavetable/synthesizer.py b/src/pojagi_dsp/channel/ecg/generator/wavetable/synthesizer.py
index 5d8feb3..fad2cc6 100644
--- a/src/pojagi_dsp/channel/ecg/generator/wavetable/synthesizer.py
+++ b/src/pojagi_dsp/channel/ecg/generator/wavetable/synthesizer.py
@@ -33,8 +33,6 @@ class ECGWaveTableSynthesizer(AECGSynthesizer):
         heart_rate = self.heart_rate
 
         self._calibrate()
-        
-        print("inside samples", hex(id(self)))
 
         while idx < self.wavelength:
             phase = self.phase