It is feasible to create small directional acoustic sensors that have a better signal-to-noise ratio. The disclosed directional sensor for acoustic comprises a primary sensing unit that produces different output signals based upon different input directions. It is capable of generating one signal at one direction of external energy . It is configured at minimum to generate an additional signal that is generated by an additional direction of external energie. The second sensor is designed to generate various output signals, based on the direction of input.

1. Field

This disclosure is about an audio sensor that is directional and, more specifically a sensor with an enhanced signal-to-noise ratio (SNR).

2. Description of Related Art

An acoustic sensor is mounted on appliances in the home, image display devices or virtual reality devices artificial intelligence speakers or similar devices, and is configured to sense the direction of sound as well as recognize voices. Acoustic detectors may comprise an sensing device that is directional. It converts mechanical motions that are caused by pressure variations into an electrical signal.

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