ElaraTek develops and sells advanced DSP-based audio and voice quality enhancement technologies and hardware reference design platforms to the telecoms, specialist and military markets. SonoKlara® is a registered trademark for proprietary DSP-based audio & voice enhancement technologies from ElaraTek.  

SonoKlara® identifies background noise mixed with the signal and intelligently auto-tunes the noise reduction algorithm to cancel different noise types including: road/traffic/engine noise, environmental/background music/babble noise and wind noise. Subsequently the speech enhancement algorithm compensates for any adverse effects, resulting in clear natural-sounding speech, even when background noise is dominant. SonoKlara® can be further customised for harsh noisy environments such as military and aviation, where excessive but predictable noise types are present.

The result is a clear natural-sounding speech, even when background noise is dominant. Unlike conventional noise reduction techniques, which often result in metallic / musical speech (also known as piping effect), SonoKlara® produces excellent speech quality in the presence of noise, whatever the noise type. The ability to accurately estimate and identify the presence of noise is one of the key attributes in the superb performance of SonoKlara®.

ElaraTek’s acoustic shock reduction algorithms detect and attenuate wide range of acoustic shocks mixed with the incoming signal. These acoustic shocks include short-duration impulsive shocks such as line interference; sudden loud sounds such as cough, sneeze and shout; high-pitched shocks such as whistle and screech; and telephony generated shocks such as DTMF & Fax tones. The shock reduction algorithms auto-configure in real-time to cancel out the shocks and provide significantly improved voice quality and hearing protection.

In order to improve clients’ time-to-market and to reduce costs, ElaraTek offers a low-cost DSP-based hardware PCB, fully integrated and optimised with ElaraTek’s audio & voice quality software algorithms for call centre, specialists and military headset applications.