The market loves True Wireless Stereo (TWS) products. It's great to be able to listen to music and watch video wherever you are, but why stop there?
Why not add Internet-enabled voice assistants, or even health care features to your favorite portable audio devices?
The demand for multi-functional TWS products requires an ever-shrinking form factor and ever-decreasing power consumption for longer battery life.
This content introduces our solution for TWS.

Electronic Compass

True Wireless Stereo (TWS)

Head Tracking

Realistic Audio Experience

As TWS technology has become more sophisticated, so has the demand for more realistic listening experiences via technologies such as customizable Head-Related Transfer Functions (HRTF), as well as acoustic innovations in the AR space.

Since a True Wireless Stereo user is free to move around, robust head tracking is a must. AKM's ultra-compact electronic compass drives our Sound Image Localization technology, which fixes the perceived location of the audio source at an arbitrary position, regardless of the listener's orientation and the direction of the source's movement throughout the sound field.

The accuracy of the head tracking may be improved even further by combining data from the electronic compass with the posture information provided by six-axis IMU, which consists of an accelerometer and a gyroscope mounted on the TWS device.

Azimuth Detection

Smart Self-navigation

Today's navigation apps deduce the direction of travel by observing the direction of the smartphone itself. AKM's electronic compass (plus acceleration sensor) constantly detects the direction in which the user is traveling, allowing for voice-guided navigation without having to hold the smartphone.

These sensors, combined with AKM's proprietary magnetic offset compensation technology, enable a compact, comfortable, and safe navigation system.

Azimuth Detection