RunningSum running sum over n frames


A running sum over a user specified number of samples, useful for running RMS power windowing. 



*ar(in, numsamp)


in Input signal

numsamp How many samples to take the running sum over 

(initialisation time only, not modulatable. default: 40)



// distorts of course - would need scaling

{ RunningSum.ar(SoundIn.ar) }.play

// Running Average over x samples

(

{ 

var x = 100;

RunningSum.ar(LFSaw.ar, x) * (x.reciprocal)

 }.play

)


// RMS Power

(

{ 

var input, numsamp;

input = LFSaw.ar;

numsamp = 30;

(RunningSum.ar(input.squared, numsamp) / numsamp).sqrt

}.play

)



// shortcut in class

{ RunningSum.rms(SoundIn.ar) }.play



// play around

(

{ 

var input, numsamp, power;

numsamp = 500;

input = SoundIn.ar;

power = MouseX.kr(0.1, 4);


(RunningSum.ar(input ** power, numsamp)/numsamp) ** (power.reciprocal)

}.play

)