MATLAB: Colored Noise: Set Duration

Question

I would like to generate pink/white/blue/purple noise and set the duration of this signal. I'm using this code:

signal = dsp.ColoredNoise('Color','pink','SamplesPerFrame', 1024);

Link: https://www.mathworks.com/help/dsp/ref/dsp.colorednoise-system-object.html

In my understanding, the 'SamplesPerFrame' variable does not indicate the duration of the generated signal, but rather the amount of samples used to obtain the desired spectral distribution (white, pink, etc …).

How can I generate a pink noise using 1024 samples per frame (spectral distribution) and also have 20 seconds of audio duration?

I'm using:

duration = 20; % seconds
Fs = 44100; % Sample Rate (Hz)

Answer 1

I was wrong. The 'SamplesPerFrame' parameter is the length of the signal. Sorry...