Alango’s Mobile Voice Communication Package (M-VCP) enhances the fidelity of the user’s voice in noisy environments and cancels acoustic echo. The most common implementation today for smartphones is one primary and one reference microphone; the primary utilized for voice whereas the reference is utilized for noise discrimination. M-VCP improves upon this with advanced directional microphone beamforming and noise cancellation to clean the outgoing user voice so as to be heard in virtually any real-world condition utilizing 2 or more microphones.
|Adaptive Directional Microphone (ADM)||Utilizes two or more microphones in the device to adaptively discriminate between the user’s voice and ambient noises in different use cases.|
|Acoustic Echo Canceller (AEC)||Eliminates acoustic echo with multi-band residual echo suppressor ensuring full-duplex communication.|
|Noise Suppressor (NS)||Detects and attenuates stationary and transient noises (street, pub, etc.) in transmitted and received signals.|
|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 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 noisy conditions (speed, type of road, rain, open window, etc.).|
Flexible implementation transforms to close talk, far talk (handheld or tabletop speakerphone), and voice recognition modes on the fly.
Optimal usage of available resources and minimal power consumption.
Adaptable to a multitude of different designs.
Ported to all major DSP and MCU cores.