Patent ID: 11937047
Assignee: CHROMATIC INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An ear-worn device, comprising:
two or more microphones configured to generate time-domain audio signals, each of the two or more microphones configured to generate one of the time-domain audio signals;
processing circuitry comprising analog processing circuitry, digital processing circuitry, beamforming circuitry, and short-time Fourier transformation (STFT) circuitry, the processing circuitry configured to generate, from the time-domain audio signals, one or more frequency-domain non-beamformed audio signals and one or more frequency-domain beamformed signals, the one or more frequency-domain non-beamformed audio signals each comprising a speech portion and a noise portion, and the one or more frequency-domain beamformed audio signals each comprising a speech portion and a noise portion; and
neural network circuitry downstream of the beamforming circuitry, the neural network circuitry configured to:
receive multiple frequency-domain input audio signals originating from the one or more frequency-domain non-beamformed audio signals and the one or more frequency-domain beamformed signals; and
implement a single neural network trained to generate, based on the multiple frequency-domain input audio signals, a noise-reduced and spatially-focused output audio signal or an output configured to generate the noise-reduced and spatially-focused output audio signal.