SOLUTIONSANC
People would like to listen anywhere, even in noisy environment.
Generates anti-noise signal which has 180 degree phase difference from noise
Noise cancelling by superposition of two anti-phase signals
Enables to enjoy listening to music without volume up by lowering the surrounding noise
By implementation method
Analog vs. Digital
Feed-forward vs. Feed-back
Most of energy is located in low frequency band, so reducing low frequency noise is important
Feed-back shows better performance in reducing low frequency noise
Application | Type | Description |
---|---|---|
Phone or tablet Built-in ANC + ANC ready earphone |
Phone or tablet with built-in ANC chip No batteries in the earphone Suitable for bundle earphone |
|
Common type phone or tablet + earphone w / ANC & battery |
ANC chip in the earphone with battery No need battery for USB Type-C Mid to High-priced earphone |
|
Common type phone or tablet + BT earphone w / ANC |
Since BT module has a battery, |