What is EarFun's
EarFun’s QuietSmart™ Digital Tech is an upgraded Hybrid Active Noise
Cancellation [ANC] System to maximize noise-canceling performance
and the best audio experience with a noise reduction depth of up to
38dB, features two microphones (Feedforward-Mic & Feedback-Mic) on
each earbud,captures ambient noise and in-ear noise, passes the data
of both sides to the internal Noise-Canceling System that nullifies
it with equal anti-noise before it reaches your ears.
The Feedforward mic [FF Mic] detects ambient noise and passes
through it to the internal ANC system to produce an opposite signal
to cancel out the ambient noise.
The Feedback mic [FB Mic] is set inside of the earbud to detect the
in-ear sound and unwanted noise. This helps the ANC system to
produce corrections in the signal to eliminate the in-ear noise with
a broader range of sound frequencies.
Missing bass freq - General ANC Mode
Compensate bass freq - QuickSmart™ ANC Mode
QuietSmart™ ANC Algorithm
Combining with EarFun's QuietSmart™ ANC algorithm, it senses and
adjusts to music and noise signals, as well as acoustic
characteristics between the driver unit and ears, at over 400 times
per second. The QuietSmart™ tech also will fill in the missing sound
frequencies which cause by the ANC process. It will tune music to the
shape of your ear for truly immersive sound and consistent ANC