Clipping noise in poly~ object

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Hi,

In my AudioTest.maxpat patch i want start a sound sample (sound001.wav in ResistorNoise.maxpat subpatch) randomly a short while after each other.

AudioTest.maxpat
Max Patch
ResistorNoise.maxpat
Max Patch
sound001.wav

Because of the reason that each started sound can be oveclapped by another sound i use the poly~ object. Inside the poly patch NoisePoly.maxpat object I have used the line~ object to avoid clipping noise while playback the sample(s). But when i start the Patch there is still some clipping noise hearable.

NoisePoly.maxpat
Max Patch

Maybe someone can give me a hint how to avoid these clipping noise..