Noisy¶
Different types of noise are available. The following table lists the color of noise and how the power and power density change per octave.
Color | Power | Power density |
---|---|---|
White | +3 dB | 0 dB |
Pink | 0 dB | -3 dB |
Blue | +6 dB | +3 dB |
Brown | -3 dB | -6 dB |
Violet | +9 dB | +6 dB |
Curves corresponding to the noise color are generated in frequency domain.
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noisy.
blue
(ntaps)¶ Compute impulse response for blue noise.
Parameters: ntaps – Length of impulse response. Returns: Impulse response of length ntaps.
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noisy.
brown
(ntaps)¶ Compute impulse response for brown noise.
Parameters: ntaps – Length of impulse response. Returns: Impulse response of length ntaps.
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noisy.
pink
(ntaps)¶ Compute impulse response for pink noise.
Parameters: ntaps – Length of impulse response. Returns: Impulse response of length ntaps.
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noisy.
violet
(ntaps)¶ Compute impulse response for violet noise.
Parameters: ntaps – Length of impulse response. Returns: Impulse response of length ntaps.
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noisy.
white
(ntaps)¶ Compute impulse response for white noise.
Parameters: ntaps – Length of impulse response. Returns: Impulse response of length ntaps.