Description
The new improved PNG-400 can provide a good clean white, pink, or brown noise sound through your stereo system or through a set of computer speakers, which is a far better alternative than listening from "tinny" little speaker found in sound conditioners. Noise signals consist of true random impulses unlike the more common pseudo-random digital noise generators which create an algorithmic sequence of bits that eventually repeats. Amplitude peaks follow natural Gaussian distribution.
This device produces a TRUE white noise signal which is characterized by a 3 decibel climb in energy per octave. Pink noise contains equal energy per octave resulting in a smooth uniform sound that is pleasing to the ear (deviation is typically less than ± .5 dB across the audio spectrum).
Brown noise is characterized by a 3 dB drop in energy per octave. The soothing sound of brown noise is rich in bass and resembles the roar of a very large waterfall. Please see the picture gallery for spectrum analysis of white, pink, and brown noise.
Contains a special sophisticated filter that removes all frequencies that are outside the range of human hearing (infrasonic & ultrasonic). This eliminates unnecessary loading that may otherwise be imposed on your audio system. Enclosure is made from rugged high-impact ABS plastic. Product is RoHS Compliant and is constructed with lead-free components and lead-free solder.
Purchase includes RCA cables (for hook-up to external audio equipment) AC adapter, and Owner’s Manual. Comes with a 30 day money-back guarantee and a two year warranty (no need to fill out a warranty registration card). WE SERVICE WHAT WE SELL! If the unit needs repair even after the warranty has expired, just ship it back to us (repair costs are very reasonable). Proudly made in the U.S.A.!