Acoustic beamforming describes microphones focusing on what you want to hear.
The purpose is to improve the quality of
a sound source (such as a voice), while rejecting environmental and background
noise.
Multiple microphones can be configured
in an array. The signals from these "phased array microphones" can be
processed to be more sensitive to sound coming from one or more specific
directions than sound coming from other directions.
This allows you to focus on a particular
point in space. The task is easier when the sound you are trying to amplify is
louder than the surrounding noise.
Acoustic beamforming is a rich, complex
topic, with exciting applications:
Smartphones
- speaking in the noisy places
- focusing the camera microphone array
on the subject in the lens
Conference Room speakerphones
- focus on the source of the loudest
sound (the person currently speaking)
Car hands-free microphones
- focus on the sound from the speakers'
sitting positions
Sport
TV
- imagine the audio zooming in with the
video to get you close to the sounds from the action
Ramona / NTi Audio
Acoustic beamforming describes microphones focusing on what you want to hear.
The purpose is to improve the quality of a sound source (such as a voice), while rejecting environmental and background noise.
Multiple microphones can be configured in an array. The signals from these "phased array microphones" can be processed to be more sensitive to sound coming from one or more specific directions than sound coming from other directions.
This allows you to focus on a particular point in space. The task is easier when the sound you are trying to amplify is louder than the surrounding noise.
Acoustic beamforming is a rich, complex topic, with exciting applications:
Smartphones
- speaking in the noisy places
- focusing the camera microphone array on the subject in the lens
Conference Room speakerphones
- focus on the source of the loudest sound (the person currently speaking)
Car hands-free microphones
- focus on the sound from the speakers' sitting positions
Sport TV
- imagine the audio zooming in with the video to get you close to the sounds from the action