Jax2 asked: What is the difference between pink noise and white noise (noticed the recommendation for white noise in the Geddes reference)?
IIRC, white noise has equal SPL/Hz across the spectrum, whereas pink noise has equal SPL in each octave band. Pink noise is thought to be more relevant to the perception of sound. It's been nearly 50 years since I've had to know such stuff, so my recollection may be faulty, but the distinction is something along those lines. I'd be inclined to use pink noise unless Geddes has a well reasoned rationale for his preference, though white noise generators that meet specs may be easier to find in products aimed at the consumer market.
db
IIRC, white noise has equal SPL/Hz across the spectrum, whereas pink noise has equal SPL in each octave band. Pink noise is thought to be more relevant to the perception of sound. It's been nearly 50 years since I've had to know such stuff, so my recollection may be faulty, but the distinction is something along those lines. I'd be inclined to use pink noise unless Geddes has a well reasoned rationale for his preference, though white noise generators that meet specs may be easier to find in products aimed at the consumer market.
db