Audio TechnologiesAudio Noise Reduction Software & Digital Array Microphone
Audio Filter Algorithms
Audio Filter Libraries Available to License for Your Devices’ Embedded Processors.
New internet connected devices controlled by natural language understanding require advanced audio input technology.
Andrea Electronics patented system of digital stereo beam-forming and noise cancellation signal processing enables accurate far-field speech recognition performance from up to 14 feet away!
Andrea’s award winning audio noise reduction software provides wide bandwidth fidelity with less digital artifacts and lower distortion, thus raising the bar for audio noise reduction sound quality.
Our latest filter libraries are designed for OEMs targeting new product platforms running Linux and Android operating systems, while utilizing new powerful mobile processors with DSP cores such as ARM.
Audio Noise Reduction
DSDA is a sophisticated and robust noise-cancellation solution developed to bring a new level of clarity to voice communication applications with superior audio noise reduction. A patented system approach of array microphone adaptive beam forming, the digital technology enables optimal performance of far-field voice input by centering microphone sensitivity on the user’s voice and canceling noise outside of the pick-up cone.
An award winning digital noise canceling algorithm, PureAudio® is designed to attenuate ambient and electronic repetitive noises from the desired speech signal, improving the signal-to-noise ratio.
An advanced full duplex acoustic echo cancelling algorithm, EchoStop™ was developed to also be incorporated with DSADA and PureAudio microphone technologies for a complete audio input and output solution.
Patented Digital Finding and Tracking Array (DFTA™) technology utilizes an array of microphones and a unique algorithm to detect the presence of a user’s voice, determine the direction of the voice and follow and track it when it moves. In a videoconferencing setting, this unique technology can provide direction to a videoconferencing camera and allow the system to steer and concentrate on the speaker, thus providing a “video-follow-audio” capability.
Stereo recording with the SuperBeam headset enables lifelike 3D surround sound capture of the users listening environment. Due to the stereo microphones “Binaural” placement near the user’s ears, creates a natural head acoustic transfer function. Sound arriving at each microphone in different phase will duplicate the real ear listening experience. Audio playback of these recordings will then deliver a realistic sound reproduction experience, great for recording live audio events.
Andrea is also highly skilled in the development of microphone hardware solutions utilizing digital signal processing.
We provide total microphone solutions for consumer, industrial and professional audio markets.
Our engineering capabilities and services include:
Microphone selection and pre-amplification (A2D/DAC)
System schematic design and low noise PCB layout
Acoustic housing industrial design and product integration
Quality manufacturing of subassemblies and final products