SNEX Correlation Meter

resonant

How can I make a node using SNEX or a C++ node with modulation target (value range between -1 and +1), just using the useful Correlation Meter code below?

(By the way, Thanks to @dannytaurus for providing this https://forum.hise.audio/topic/14007/phase-correlation-meter/10
)?

function processBlock(channels)
{
	var left = channels[0];
    var right = channels[1];
    var numSamples = left.length;    
    
    correlationSum = 0.0;
    sampleCount = 0;
    
    // Process each sample pair
    for (var i = 0; i < numSamples; i++)
    {
        var leftSample = left[i];
        var rightSample = right[i];
        
        var normGain = Math.max(Math.abs(leftSample), Math.abs(rightSample));
        
        if (normGain > 0.0)
        {
            var thisCorrelation = 1.0 - (Math.abs(leftSample - rightSample) / normGain);
            correlationSum += thisCorrelation;
            sampleCount++;
        }
    }
    
    // Average correlation for this block
    if (sampleCount > 0)
    {
        var avgCorrelation = correlationSum / sampleCount;
        
        // Apply smoothing (same as backend: 0.8 * previous + 0.2 * current)
        smoothedCorrelation = 0.6 * prevSmoothedCorrelation + 0.4 * avgCorrelation;
        prevSmoothedCorrelation = smoothedCorrelation;

        corrCable.setValue(smoothedCorrelation);  
    }
    
    
        
}

ustk

@resonant Well, I am not sure it can be done by enabling isModNode and use handleModulation because it might just not process the audio block anymore. But to be honest I don't really know what I am talking about here so if someone wants to say more...

You can still test with isModNode but if the above is true, you can use a global cable (Tools -> Create C++ code for global cable)

resonant

@ustk

I think the calculation can be done using the float getSamples function and then passed to the mod dragger. I managed to do it up to the code below, but the rest is beyond me for now.

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SNEX Correlation Meter

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