Speech reproduction device configured for masking reproduced speech in a masked speech zone

Simple SummaryContent extracted from patent full text and abstract with AI.

The invention is a speech reproduction device that enables clear, intelligible speech in select areas (clear speech zones), while rendering the same speech unintelligible in other areas (masked speech zones). It works by analyzing the incoming speech signal and dynamically generating adaptive masking sounds (such as noise, music, or natural sounds) broadcast through dedicated loudspeakers in the masked zone. This creates privacy for conversations in shared spaces or vehicles by making it difficult for unintended listeners to understand the speech.

Use CasesContent extracted from patent full text and abstract with AI.

• Creating private telecommunication areas in open-plan offices to prevent eavesdropping or distractions.
• Ensuring confidential phone conversations in cars, so drivers cannot overhear passengers' discussions.
• Enabling private interactions at reception desks or waiting rooms in hospitals, clinics, or banks.
• Supporting high-security environments where speech privacy is essential, such as legal consultation rooms or government offices.
• Customized meeting zones in coworking spaces to simultaneously support conversation and privacy needs.

BenefitsContent extracted from patent full text and abstract with AI.

• Enhances speech privacy by making conversations unintelligible to unintended listeners nearby.
• Allows both clear communication and privacy within close proximity, supporting modern open environments.
• Adaptive masking sound increases privacy without requiring high-volume, obtrusive noise.
• Masking sound can be customized (music, nature sounds, etc.) to be pleasant and minimally distracting.
• Flexible implementation in vehicles, offices, medical facilities, or any location where distinct privacy zones are needed.
• Reduces distractions and increases comfort for people in shared spaces.
• Advanced spatial audio control allows for precise targeting of speech and masking zones.

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Inventors & Applicants

Patent Abstract

The invention relates to a speech reproduction device for reproducing speech based on a received speech signal so that the reproduced speech is intelligible in a clear speech zone and unintelligible in a masked speech zone, the speech reproduction system comprising: an audio processing module configured for receiving the speech signal; a set of speech loudspeakers configured for reproducing the speech based on one or more speech loudspeaker signals; and a set of masking sound loudspeakers configured for producing a masking sound based on one or more masking sound loudspeaker signals, wherein the masking sound masks the speech in the masked speech zone; wherein the audio processing module comprises a speech signal analysis module configured for producing one or more analysis signals based on spectral and/or temporal characteristics of the speech signal; wherein the audio processing module comprises a masking sound generator configured for producing one or more masking sound signals based on the one or more analysis signals.