FluidBufOnsetSlice : UGen {
    *new1 { |rate, source, startFrame = 0, numFrames = -1, startChan = 0, numChans = -1, indices, metric = 0, threshold = 0.5, minSliceLength = 2, filterSize = 5, frameDelta = 0, windowSize = 1024, hopSize = -1, fftSize = -1, doneAction = 0, blocking = 0|

		var maxFFTSize = if (fftSize == -1) {windowSize.nextPowerOfTwo} {fftSize};

		source = source.asUGenInput;
		indices = indices.asUGenInput;

		source.isNil.if {"FluidBufOnsetSlice:  Invalid source buffer".throw};
		indices.isNil.if {"FluidBufOnsetSlice:  Invalid features buffer".throw};

		//NB For wrapped versions of NRT classes, we set the params for maxima to
		//whatever has been passed in language-side (e.g maxFFTSize still exists as a parameter for the server plugin, but makes less sense here: it just needs to be set to a legal value)

		^super.new1(rate, source, startFrame, numFrames, startChan, numChans, indices, metric, threshold, minSliceLength, filterSize, frameDelta, windowSize, hopSize, fftSize, maxFFTSize, doneAction, blocking);
	}

    *kr { |source, startFrame = 0, numFrames = -1, startChan = 0, numChans = -1, indices, metric = 0, threshold = 0.5, minSliceLength = 2, filterSize = 5, frameDelta = 0, windowSize = 1024, hopSize = -1, fftSize = -1, doneAction = 0|
		^this.multiNew(\control, source, startFrame, numFrames, startChan, numChans, indices, metric, threshold, minSliceLength, filterSize, frameDelta, windowSize, hopSize, fftSize, doneAction);
	}

    *process { |server, source, startFrame = 0, numFrames = -1, startChan = 0, numChans = -1, indices, metric = 0, threshold = 0.5, minSliceLength = 2, filterSize = 5, frameDelta = 0, windowSize = 1024, hopSize = -1, fftSize = -1, action|
		^FluidNRTProcess.new(
			server, this, action, [indices]
		).process(
			source, startFrame, numFrames, startChan, numChans, indices,  metric, threshold, minSliceLength, filterSize, frameDelta, windowSize, hopSize, fftSize
		);
	}

     *processBlocking { |server, source, startFrame = 0, numFrames = -1, startChan = 0, numChans = -1, indices, metric = 0, threshold = 0.5, minSliceLength = 2, filterSize = 5, frameDelta = 0, windowSize = 1024, hopSize = -1, fftSize = -1, action|
		^FluidNRTProcess.new(
			server, this, action, [indices], blocking: 1
		).process(
			source, startFrame, numFrames, startChan, numChans, indices,  metric, threshold, minSliceLength, filterSize, frameDelta, windowSize, hopSize, fftSize
		);
	}
}