Forums > MaxMSP

Where is the pop?


rpieket
Jan 17 2012 | 5:35 am

Tonight I decided to take a shot at a basic synth voice. Oscillator, filter, amp, envelope. I thought this would be easy, but for some reason there is an artifact that I cant get rid of. Most of the notes have a distinct pop at the start, even if the attack portion of the envelope is set to 100 ms.

Even stranger. Run the patch, then leave it for a couple of minutes, and turn it back on. The first note has an even louder pop.

I must be missing something basic, the patch can’t be simpler. What could I be doing wrong? Help would be appreciated.

-Ron.

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— Pasted Max Patch, click to expand. —

rpieket
Jan 17 2012 | 5:42 am

Darn – I just figured it out. Setting a filter cut off frequency to zero causes a DC build up. Putting a [clip~ 10. 20000.] in line with the frequency input to the [filtercoeff~] solves the issue.

-Ron.

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