It’s time for change… Welcome to Alango’s new web site!


We tried to make our new site more inviting and informative and easier to use.

We still have some white spots but decided to switch immediately.

Our old website ( will continue to be accessible
until all materials have been relocated here. You can find a temporary link
to our old site at the bottom of all these new pages.

We’ll appreciate your comments and suggestions. You feedback is very important to us.
Please, write to

Sincerely yours
Alango team

Hands Free Voice Enhancement

Applications  / Automotive  / Hands Free Voice Enhancement
Block Diagram
More for Automotive



Alango’s Voice Communication Package (VCP) is the voice enhancement solution in over 20 million vehicles on the road. Alango’s VCP ensures that the vehicle occupants are heard clearly via the automotive hands free system - utilizing the vehicles microphones and speakers – by mitigating against echo and noise as well as adjusting gains and frequency equalization.

Alango’s VCP, supporting 24kHz sampling rate, is compliant with Apple’s CarPlay and Google’s Android Auto connectivity protocols.

Alango VCP is fully compliant with ITU-T P.1100/P.1110 and VDA 1.6 specifications.  

Block Diagram



Adaptive Directional Microphone (ADM) Two or more microphones in the car cabin are positioned to adaptively discriminate between speech and noise utilizing Alango's beamforming algorithms.
Acoustic Echo Canceller (AEC) Automotive class "Type 1" full duplex echo cancellation is achieved with Alango. Easily configured and tunned to different auto interioirs.
Noise Suppressor (NS) Reduces car cabin noise in the microphone and loudspeaker signals. Alango high resolution NS allows up to 24dB noise suppression without introducing noticeable voice distortion.
Automatic Gain Control (AGC) and Dynamic Range Compressor (DRC) Equalizes voice levels in the microphone and loudspeaker signals ensuring clear intelligibility. Alango AGC technology is robust to ambient noises and allows fast signal equalization (~200ms) without increasing ambient noises.
Frequency Equalizer (EQ) Allows fine frequency adjustment of microphone and loudspeaker frequency responses with high frequency resolution.
EasyListen™ Slows down incoming speech in real time improving intelligibility of fast talkers, foreign language, mailbox and numbers.
Automatic Volume & Equalization (AVQ) Modifies the loudspeaker signal according to the ambient noise level and spectrum providing perceptually equal loudness and intelligibility in variable driving conditions (speed, type of road, rain, open window, etc.).
Packet Loss Concealment (PLC) PLC is a techniques used to mask the effects of lost or discarded packets.  The objective of PLC is to reconstruct a synthetic signal to cover missing data in a received bit stream and thus hide transmission losses.



Superb echo cancellation and noise reduction performance with relatively modest computational resources.

Easy to configure, tune and implement.

Value-added unique technologies and advanced features.

More for Automotive
Speech Recognition Enhancement
Car Intercom
Audio Enhancement
Top ▲