The paper by Lindgren et al., "Shooter localization in wireless microphone networks" [6], is an interesting combination of microphone array technology with distributed communications.
The system is a combination of microphones and vibrators fitted onto a pair of eyeglasses.
This sound localizer developed by the research team, led by Dr. Erik Borg at the Orebro Medical Center in Orebro, Sweden, is a combination of microphones and vibrators fitted onto a pair of eyeglasses.
Note that we only use a single omnidirectional signal for the calculation of the output, since combinations of the microphone signals could result in coloration due to spatial filtering effects.
With the objective of obtaining an overall extended noise reduction including a postfilter for residual cross-talk suppression (RCS) and a dynamic maximum attenuation to realize a dynamic combination of the microphone signals later, two approaches are combined to one noise reduction characteristic.
As the newest iteration of a doll that's been around since 1959, the Hello Barbie uses a combination of a microphone to record conversations, wi-fi to transfer those conversations to a computer server, voice-recognition software to figure out what the child just said, and an algorithm to determine what to say next to the child, who might range in age from three to nine.
"This allows us to enhance the integrated real-world experience with the combination of camera, microphone and touch screen".
Using the eigenspace BM, each output signal of the BM is a linear combination of all microphone signals, where all coefficients of B e are non-zero.
Hence, the best combination of all microphone signals can be chosen for each bin in the frequency domain, e.g., by applying diversity methods as in[3, 4].
However, as a preprocessing step for the realization of a dynamic combination of the microphone signals (Section 5), equal power and spectral shape of the background noise have to be provided for all related channels during transitions between different active speakers if a switching between them is performed.
