Abstract: A method for providing pink noise and improving computational efficiency including providing NS stochastic signal generators, generating a respective first random number g with variance ? and generating a respective second random number u for each respective stochastic signal generator at each discrete time n, comparing the respective second random number u with an update probability for the respective stochastic signal generator at each discrete time n, if the respective u is greater than the update probability, then not changing a respective output of the respective stochastic signal generator, if the respective u is less than or equal to the update probability, then updating the respective output of the respective stochastic signal generator to be equal to the first random number, and summing at each discrete time n the respective output of each of the NS stochastic signal generators.