Why do my samples click or pop at the start or end when I trigger them on the SP-404 mkII?

Direct Answer

Clicks and pops happen when a sample is chopped in the middle of a waveform cycle instead of at silence. The fastest fixes are using Snap to Zero-Cross or adding a micro volume envelope (Attack/Release fade) to smooth the transition.


Practical Steps to Fix the Click

  1. Press START/END and select the pad with the clicking sample
  2. Use the VALUE knob to zoom in until you see the waveform center line
  3. Press RESAMPLE to snap the chop to the nearest zero-crossing (closest silence point)
  4. If it still clicks, hold SHIFT + PITCH/SPEED to open the ENVELOPE menu
  5. Turn CTRL 1 slightly clockwise to add a tiny Attack (fade-in)
  6. Turn CTRL 3 slightly clockwise to add a tiny Release (fade-out)
  7. Press EXIT, then test the pad again

Why This Happens

The click is caused by an instant jump from 0 to loud amplitude when triggering. If the chop point sits at a waveform peak instead of silence, the speaker driver moves too fast, creating a pop spike. Snap to Zero-Cross prevents this by aligning the cut to where the waveform crosses the zero line (true silence point).


Common Mistakes to Avoid

  • Setting points without zooming → you’ll miss the real silence frame
  • Only snapping, never using envelope → fades often fix faster and cleaner
  • Using TRUNCATE before testing → commits the click permanently
  • Cutting audio abruptly in GATE mode → can click if released at a waveform peak

Quick Summary

Snap start/end to silence using START/END + RESAMPLE. If the file still clicks, add a micro Attack/Release using SHIFT + PITCH/SPEED → Envelope.


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