Pink Noise Pearl Necklace

✦Pink Noise Pearl Necklace✦ Pink noise is the most common noise in nature. Simply put, the frequency component power of pink noise is mainly distributed in the middle and low frequency bands. From a waveform perspective, pink noise is fractal, and the audio data has the same or similar energy within a certain range. From a power (energy) perspective, the energy of pink noise continuously attenuates from low frequency to high frequency, with a curve of 1/f, usually 3 decibels for every 8 degrees. Pink noise is the sound most commonly used for acoustic testing. By adding an attenuation filter that attenuates 3dB per octave to white noise, you can get pink noise. Pink noise is called "pink" because its distribution across the visible spectrum is similar to the color pink. Source: Encyclopedia Knowledge —————————————————————— ➠Material: brass/apatite/natural fresh sea pearl/rhodolite -------------------------------------------------------- ▲Product description Material: brass/apatite/natural fresh sea pearl/rhodolite Chain length: 49cm long, extension chain can be extended to 55cm ▲Brass material, no rust or fading Occasionally oxidized by life, add some copper oil to wipe it Because love always needs to be rubbed and heated ▲A branded silver polishing cloth is included. Material maintenance card Branded drawstring pockets Origin/manufacturing method Origin Taiwan Handmade