Random variation in an audio signal—i.e., sound that carries no useful information about the source; pink noise has an equal amount of energy in each octave band
The sounds used were a combination of white and pink noise in varying proportions--the same encoding used for the game described in the previous section.
Consequently, this type of pink noise modulation is excellent for local heating (other important effects of pink noise modulation are discussed elsewhere [11]).
The effect of noise on the produced vowel quality was similar in both two masking conditions, and no major differences between babble and pink noise were found (Figure 3).
There's no shortage of catchy material on Pink Noise Test's just-released major label debut, ``Plasticized'' (Interscope), which boasts an industrial-strength undercurrent.
Thus Pink Noise is not merely a catchy title but also a particularly apt metaphor for all that Rodgers is striving to pack into a surprising, if occasionally overreaching effort, full of crunchy factoids worthy of further contemplation.
Working at the Griffith Jones Centre, St Clears team members locked themselves inside cars with a (very loud) pink noise generator, a high-quality microphone and the latest spectral analysing software to map out the sonic behaviour of the car interior.
The first thing I did when Brian left was measure the speakers with what meager tools I had on hand: A Radio Shack sound meter, a CD of third-octave sinusoidal test signals, a spectrum analyzer, a second microphone, a pink-noise generator, and, to double check things, a CD of pink noise.