What Is Acoustic Beamforming?
Acoustic Beamforming enhances the speech of interest while suppressing interference, background noise, and reverberation. It allows people to move freely around without wearing or holding a microphone.
An acoustic beamformer provides the option to capture the individual speech from each talker and generate separate voice streams, i.e. it enhances the signal flow from the talk of interest to specific individuals while allowing background noise (other talk, motors, movement, etc.) to take place.
VOCAL’s acoustic beamforming software supports uniform linear, uniform circular, and uniform square microphone array orientations. The maximum number of microphones that can be processed by the acoustic beamformer for real-time applications is limited by the capabilities of the processor. VOCAL’s beamforming software libraries are available with standard APIs on a variety of platforms. Our native software libraries produce highly efficient code and can be bound to a large number of programming languages. Contact us to discuss your acoustic beamforming application requirements.
- Acoustic Beamformer Design
- Acoustic Beamforming Algorithms
- Beamforming Combined with AEC and Noise Supression
- Sound Capture Model for Beamforming
Standard Features
- Scalable number of microphones
- Scalable sampling rate
- Scalable frame size
- Supports both near field and far field
- Supports uniform linear array, uniform circular array, and uniform square array
- Fixed-angle or dynamic steering
- Multi-channel operation
- Fully adaptive system adapts to changing acoustic environment
- Native instructions for high efficiency
- Wide range of platform support
Optional Features
- Full-duplex Acoustic Echo Canceller (AEC)
- Stationary and Non-stationary noise suppression
- Active noise controller
- Dereverberation
- Blind Signal Separation (BSS)
Applications
- VoIP / Telephony
- Tele-conferencing
- Human / machine interface
- Speech based command and control
- Voice annotation
- Audio notes
- Audio surveillance
