Grey Noise contains every frequency in equal loudness (opposing white noise which contains every frequency with equal energy). Grey Noise: You'll note the graphic is convex.Brown noise: Where white noise had a uniform energy distribution, brown noise has a descending frequency slope of 6 dB/octave.Like white light is a combination of every color, white noise is a combination of every frequency. That is to say (as you'll note on the wave graphic), it has a uniform distribution of frequencies. White Noise: It's basically random noise which is formed by a constant energy in each frequency.You can use the following Noise Files as speaker tests and subwoofer tests:
So, even if we can't actually see it, noise will have one or other color depending on each of the noise's frequency's contribution. In the same way that white light is formed by the superposition of every color and black is the absence of light and color, we can speak about the color of noise depending on the sound frequencies that form it. What many people probably don't know is that noise, despite being sound waves, can also have different colors. Deeming something as noise is highly subjective on the listener's end. Check out other logos starting with 'D' audio, Dolby, Dolby Stereo, dolby stereo logo, dolby stereo logo black and white, dolby stereo logo png, dolby stereo logo transparent, logos that start with 'D', sound, technology. We all know what that is and how it can affect us. If we had to give a quick definition of noise, we'd all think of terms like “annoying”, “harmful”, “maddening”, or simply unwanted sounds.