The PNG-400 noise generator is our most versatile noise generator. The unit can produce white, pink, and brown noise. It is powered externally by an AC wall adpater (included with purchase).
The device contains special sophisticated filters that sharply reduce all frequencies that lie outside the range of human hearing (infrasonic and ultrasonic frequencies). The pink noise signal has a flatness of ± 0.5 dB or less. To see spectrum analysis, please refer to the following links. White Noise Pink Noise Brown Noise
Purchase includes AC wall adapter, RCA audio cable (for hook-up to external audio equipment), and Owner's Manual. Comes with a 30 day money-back guarantee and is covered by a two year warranty.
Power requirement: 12 VDC
Power consumption: 30 mA
Output: Approximately 316mV RMS
Output impedance (each channel): 300 ohms
Frequency: 15Hz - 20,000 Hz
Pink noise flatness: ± 0.5 dB
Brown noise filter: -6 dB per octave
Crest Factor (max): 12 dB (4 mV / mV)
Dimensions: L 4.2" W 2.8" H 1.2"
Output jack: 3.5mm (1/8") stereo
What can white noise be used for? White noise can be used to block or reduce distractions to help improve mental focus. It is great for masking unwanted high frequency noises (like children playing/laughing). White noise can also be used as a sound curtain to aid in preventing eavesdropping on private conversations. True-random white noise can also be utilized for some computer applications such as cryptography, or even for paranormal research. Click here to learn more about white noise.
Pink noise sounds similar to a waterfall and is most commonly used for masking unwanted noise (especially low-pitched noises), which can help promote a state of relaxation or sleep. It can also be used to help provide relief for tinnitus sufferers, or even for testing & calibrating sound systems. Click here to learn more about pink noise.
Brown noise resembles the roar of a very large waterfall. Just as with pink noise, brown noise is most commonly used for masking unwanted noise (especially useful for masking the low frequency rumble of heavy traffic). The gentle sound of brown noise can be especially soothing. Click here to learn more about brown noise.