The performance characteristics of a phase domain system for producing Gaussian and nonGaussian signals for investigating the effects of noise on hearing were examined. The system was designed to produce digitally generated analog signals of varying skewness and kurtosis (impulsiveness) but having identical root mean square levels and amplitude spectra. The system was capable of synthesizing nonGaussian random signals having chosen values of impulsiveness, skewness, and crest factors for any desired amplitude spectrum having pulse durations of 0 to 200 milliseconds, frequency ranges of 100 to 10000 hertz (Hz) and on/band band widths of 2 to 8 kilohertz. The system was used to synthesize simulated industrial noise wave forms by superimposing a nonGaussian signal consisting of high impulsive components that derived their energy from the on/band 100 to 10000Hz spectral region and an impact sequence that represented reflected components on a random Gaussian function that represented typical background noises emitted by various manufacturing processes. Examples of synthesized industrial noise wave forms were presented. The authors conclude that the phase domain system has the ability to design and produce families of complex wave forms that are useful for psychoacoustic, physiological, and engineering research.
Links with this icon indicate that you are leaving the CDC website.
The Centers for Disease Control and Prevention (CDC) cannot attest to the accuracy of a non-federal website.
Linking to a non-federal website does not constitute an endorsement by CDC or any of its employees of the sponsors or the information and products presented on the website.
You will be subject to the destination website's privacy policy when you follow the link.
CDC is not responsible for Section 508 compliance (accessibility) on other federal or private website.
For more information on CDC's web notification policies, see Website Disclaimers.
CDC.gov Privacy Settings
We take your privacy seriously. You can review and change the way we collect information below.
These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our site. They help us to know which pages are the most and least popular and see how visitors move around the site. All information these cookies collect is aggregated and therefore anonymous. If you do not allow these cookies we will not know when you have visited our site, and will not be able to monitor its performance.
Cookies used to make website functionality more relevant to you. These cookies perform functions like remembering presentation options or choices and, in some cases, delivery of web content that based on self-identified area of interests.
Cookies used to track the effectiveness of CDC public health campaigns through clickthrough data.
Cookies used to enable you to share pages and content that you find interesting on CDC.gov through third party social networking and other websites. These cookies may also be used for advertising purposes by these third parties.
Thank you for taking the time to confirm your preferences. If you need to go back and make any changes, you can always do so by going to our Privacy Policy page.