Editing Pink noise (section)

==Audio testing==
Pink noise is commonly used to test the loudspeakers in [[sound reinforcement system]]s, with the resulting sound measured with a test [[microphone]] in the listening space connected to a [[spectrum analyzer]]<ref name=Sound/> or a computer running a real-time [[fast Fourier transform]] (FFT) analyzer program such as [[Smaart]]. The sound system plays pink noise while the audio engineer makes adjustments on an [[Equalization (audio)|audio equalizer]] to obtain the desired results. Pink noise is predictable and repeatable, but it is annoying for a concert audience to hear. Since the late 1990s, FFT-based analysis enabled the engineer to make adjustments using pre-recorded music as the test signal, or even the music coming from the performers in real time.<ref>{{cite book |last=Loar |first=Josh |date=2019 |title=The Sound System Design Primer |pages=274–276 |publisher=Routledge |isbn=9781351768184}}</ref> Pink noise is still used by audio system contractors<ref>{{cite web |url=http://www.aedesign-inc.com/blog/2018/8/21/sound-system-commissioning-say-what |last=Eckstein |first=Matt |title=Sound System Commissioning - Say What? |website=AE Design |date=30 August 2018 |access-date=November 22, 2022}}</ref> and by computerized sound systems which incorporate an automatic equalization feature.<ref>{{cite web |url=https://uc.yamaha.com/insights/blog/2021/january/what-is-pink-noise-and-what-does-it-do/ |title=What is Pink Noise and What Does It Do? |last=Cox |first=Tyler |website=Yamaha Insights |publisher=[[Yamaha Pro Audio]] |access-date=November 22, 2022}}</ref>

In manufacturing, pink noise is often used as a [[burn-in]] signal for [[audio amplifier]]s and other components, to determine whether the component will maintain performance integrity during sustained use.<ref>{{cite magazine |last=Lacanette |first=Kerry |date=1990 |title=Create an Accurate Noise Generator |page=108 |magazine=[[Electronic Design (magazine)|Electronic Design]] |volume=38 |publisher=Hayden }}</ref> The process of end-users burning in their [[headphones]] with pink noise to attain higher fidelity has been called an [[audiophile]] "myth".<ref>{{cite web |url=https://www.soundguys.com/headphone-burn-in-isnt-real-17463/ |title=Headphone burn-in isn't real |last=Thomas |first=Christian |date=April 30, 2021 |website=Soundguys |access-date=November 22, 2022}}</ref>