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ElaraTek
SonoKlara® Bluetooth Headsets
Software
Simultaneous Rx / Tx noise cancellation,
acoustic echo reduction, speech enhancement,
hearing exposure monitoring & alert, and music effects,
optimised and ready-to-run on CSR’s BlueCore5-Multimedia.
Baseband
R
A
D
I
O
Bi-directional noise reduction, speech enhancement, echo cancellation
and noise-dependent auto volume control represent the core of
SonoKlara® proprietary technology from ElaraTek. SonoKlara® identifies
background noise mixed with the signal and intelligently auto-tunes the
noise reduction algorithm in to cancel different noise types mixed with the
signal, including: road/traffic/engine noise, street/factory/café/babble
noise and wind noise. Subsequently the speech enhancement algorithm
compensates for any adverse effects and the result is clear naturalsounding speech, even when background noise is dominant.
Flash / RAM
BlueCore5
Multimedia
C
O
D
E
C
MCU
Kalimba DSP
SonoKlara®
Single / Dual Mic
Noise Reduction
RF - IN
Noise Reduction
& Speech
Enhancement
A2DP
Noise-Dependent
Volume Control
Exposure
Alert
Exposure
Monitoring
Exposure
Alert
Exposure
Monitoring
MIC
IN
Echo
Canceller
Speech
Enhancement
RF OUT
HSP / HFP
SPK
OUT
RF - IN
Bass; Treble; Rock; Classic
Music Enhancement
SonoKlara®
Digital Audio
Processing
SPK
OUT
Features (HSP/HFP)
Bi-directional noise reduction
excellent performance with all noise types
simultaneous noise reduction in TX and RX
upto 25dB noise attenuation with dual-mic
noise identification for optimal tuning
fast convergence with low delay
integrated speech enhancement
no adverse effect on speech quality
works well when in tandem with a 2nd NR
Noise-dependent auto volume control
adjusts the volume based on ambient noise
utilises accurate ambient noise estimation
smooth and natural transition between levels
intelligent tracking for optimum voice quality
avoids startle effects - no sudden changes
maintains previous signal-to-noise ratio (SNR)
no need to constantly search for volume buttons
Acoustic echo cancellation
cancel echos coupled from speaker to mic
fast convergence & deep echo cancellation
robust double-talk performance
processes up to 32msec including echo tail
handles multiple echos within the frame
SonoKlara® offers best-in-class adaptive DSP technologies with exceptional speech clarity and
superb performance in hostile noisy environments, plus unique features aimed at high-end products
Features (A2DP)
SonoKlara® incorporates music enhancements and user exposure monitoring and alert (EM&A)
technology.
A2DP music enhancement
bass-boost enhancement
treble-boost enhancement
rock and classic music effects
User exposure monitoring & alert
continuously monitors acoustic energy through the headset
calculates accumulative hearing exposure in HSP and A2DP
configurable loudspeaker setting for precise measurement
notifies the user if a pre-defined acoustic energy level is reached
notification message can be deactivated / reactivated
Listening to loud music for extended periods of time through a headset can adversely affect human
hearing. SonoKlara® offers sound exposure monitoring and alert to maximise hearing protection.
ElaraTek’s comprehensive suite of voice
enhancement technologies are optimised
to run on Kalimba DSP. The Master
Headset Application (MHA) is ideal for
module selection, and speedy integration
to deliver new products with unique
features to meet customer requirements.
Bluetooth
Headsets
VoIP
Headsets
Private
Mobile
Radio
Call Centre
Headsets
Master
Headset
Application
Aviation
Headsets
ElaraTek
Software
Call Centre Solution
Enhance the performance of your call centre headsets by integrating technologies and
solutions from ElaraTek. Our technologies offer speech clarity while protecting operators
from excessive noise exposure and acoustic shocks. ElaraTek’s proprietary acoustic
shock protection technology accurately identifies different types of acoustic shocks and
subsequently attenuates the shocks without adversely affecting voice quality.
Our integrated call centre solution comprises of:
SonoKlara® noise reduction and speech enhancement
acoustic and impulsive shock protection
active & passive exposure monitoring, logging and alert technology
ElaraTek’s highly integrated voice quality & music
enhancement DSP technologies and products are
optimised to run on CSR’s BlueCore5-Multimedia.
ElaraTek Ltd. 5th Floor, NorthWay House, 1379 High Road, Whetstone, London, N20 9LP, United Kingdom.
Tel: +44 (0)20 8445 8933
Fax: +44 (0)20 8588 3770
Web: www.elaratek.com
Email: [email protected]
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