> Am 16.11.2015 20:00, schrieb Martin Vicanek: >> [..] the autocorrelation is >> >> <x[n]*x[n+k]> = (1/3)*(1-P)^|k| >> >> (I checked that with a little MC code before posting.) So the power >> spectrum is (1/3)/(1 + (1-P)z^-1), i.e flat at DC and pink at higher >> frequencies. For reasonably small P the corner frequency is >> >> w_c = P/sqrt(1-P). > > Erratum: The power spectrum is brown, not pink. The fall-off is 12 > dB/octave, not 6. Sorry, next time I'll use a larger envelope. ;-) > well, pink is -3 dB/octave and red (a.k.a. brown) is -6 dB/octave. �a roll-off of -12 dB/octave would be very brown. -- � r b-j � � � � � � � � � r...@audioimagination.com � "Imagination is more important than knowledge."
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