Electronic – Fatal Error Audio equalization simulation LTSpice

audioerror-amplifierltspicesimulation

I'm doing a 3s audio.wav simulation on LTSpice with the following circuit (3 band pass filters and amplifiers):
enter image description here

In this example it's boosting the bass and attenuating the highs.

It loads the first second really fast and then it start to take a longer time:
enter image description here

When done amplifying the highs it gets stuck in 2s of the simulation.

The error I get is Fatal Error: Analysis: Time step too small; time = xxxxx,timestep=1.25e-15: trouble with u3:qx-instance q:u3:1.
Or sometimes it's U6 that fails.

How can I solve this?

Thanks in advance!

Best Answer

When I had some issues like yours I just put this directives:

.options gmin=1e-10 abstol=1e-10 method=gear

It will change the toleration standards for your simulation, but not so much that will affect your result.

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