More peak controller changes:

Add treshold knob to peak controller
This causes the peak controller to react only when the measured peaks are above the set treshold
Might be useful for finetuning your sidechains

plugins/peak_controller_effect/peak_controller_effect.cpp

@@ -130,7 +130,9 @@ bool PeakControllerEffect::processAudioBuffer( sampleFrame * _buf,
 	}
 
 	float curRMS = sqrt_neg( sum / _frames );
+	const float tres = c.m_tresholdModel.value();
 	const float amount = c.m_amountModel.value() * c.m_amountMultModel.value();
+	curRMS = qAbs( curRMS ) < tres ? 0.0f : curRMS;
 	m_lastSample = qBound( 0.0f, c.m_baseModel.value() + amount * curRMS, 1.0f );
 
 	return isRunning();