Genuine Analog Pink White Brown Noise Signal Generator Which Does Not Loop (Must be Patched to a Set of Computer Speakers or Sound System)

This unusual device is perfect for masking out snoring, noisy neighbors, barking dogs, or the rumble of heavy traffic. It can also be used to create a sound curtain which can help prevent eavesdropping. Other uses for true-random noise include cryptography and paranormal research. Why choose analog? High quality white noise is supposed to consist of rapid "true-random" impulses. It is the very nature of this "randomness" that produces that distinct white noise sound - just like the random spattering of rain drops. White noise that does NOT consist of true-random impulses is called pseudo-random noise. It sounds "white" because the individual impulses only seem to pop forth randomly. What is really going on is that this seemingly random train of impulses is just a predetermined sequence of bits that will eventually repeat itself (which can be rather irritating). It is just a simulation of true-random noise created by mathematical algorithms - a product of digital technology. It is not possible to generate true-random white noise by digital means, e.g., computer software or digital electronic circuitry. Only an analog source can provide true-random white noise. The problem is that almost all other white noise generators or electronic sound conditioners found on the market are pseudo-random digital devices. Why? Because digital noise generators are much easier to manufacture. We are one of the few manufacturers left in the world that still produce analog noise generators. Please Note: As already indicated, this device must be patched to an audio amplification system such as a home stereo system (RCA cables included) or a set of amplified speakers (such as a pair of computer speakers) to produce a white noise sound (or pink or brown). But don't worry, hook-up is a snap. Please check out our other products (we also offer stand-alone white noise and brown noise products).

• 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.!