US 2023/0410835 A1Published application

Voice onset detection

AssigneeMagic Leap, Inc.

InventorsJung-Suk Lee, Jean-Marc Jot

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Abstract

In some embodiments, a first audio signal is received via a first microphone, and a first probability of voice activity is determined based on the first audio signal. A second audio signal is received via a second microphone, and a second probability of voice activity is determined based on the first and second audio signals. Whether a first threshold of voice activity is met is determined based on the first and second probabilities of voice activity. In accordance with a determination that a first threshold of voice activity is met, it is determined that a voice onset has occurred, and an alert is transmitted to a processor based on the determination that the voice onset has occurred. In accordance with a determination that a first threshold of voice activity is not met, it is not determined that a voice onset has occurred.

Claims20

Dependent claims

A system comprising:

a wearable head device comprising:
a frame;
a first microphone disposed on the frame, the first microphone configured to rest at a first distance from a user's mouth when the frame is worn by the user;
and
a second microphone disposed on the frame, the second microphone configured to rest at a second distance from the user's mouth when the frame is worn by the user, the second distance unequal to the first distance;
and
one or more processors configured to perform a method comprising:
receiving, via the first microphone, a first voice audio signal;
determining a first probability of voice activity based on the first voice audio signal;
receiving, via the second microphone, a second voice audio signal;
determining a second probability of voice activity based on the first voice audio signal and the second voice audio signal;
determining whether a first threshold of voice activity is met based on the first probability of voice activity and the second probability of voice activity;
in accordance with a determination that the first threshold of voice activity is met, determining that a voice onset has occurred;
and
in accordance with a determination that the first threshold of voice activity is not met, forgoing determining that a voice onset has occurred.

12 more elements

A method comprising:

receiving, via a first microphone disposed on a frame of a wearable head device, a first voice audio signal;
determining a first probability of voice activity based on the first voice audio signal;
receiving, via a second microphone disposed on the frame of the wearable head device, a second voice audio signal;
determining a second probability of voice activity based on the first voice audio signal and the second voice audio signal;
determining whether a first threshold of voice activity is met based on the first probability of voice activity and the second probability of voice activity;
in accordance with a determination that the first threshold of voice activity is met, determining that a voice onset has occurred;
and
in accordance with a determination that the first threshold of voice activity is not met, forgoing determining that a voice onset has occurred,
wherein:
the first microphone is configured to rest at a first distance from a user's mouth when the frame is worn by the user;
and
the second microphone is configured to rest at a second distance from the user's mouth when the frame is worn by the user, the second distance unequal to the first distance.

9 more elements

A non-transitory computer-readable medium storing one or more instructions, which, when executed by one or more processors, cause the one or more processors to perform a method comprising:

receiving, via a first microphone disposed on a frame of a wearable head device, a first voice audio signal;
determining a first probability of voice activity based on the first voice audio signal;
receiving, via a second microphone disposed on the frame of the wearable head device, a second voice audio signal;
determining a second probability of voice activity based on the first voice audio signal and the second voice audio signal;
determining whether a first threshold of voice activity is met based on the first probability of voice activity and the second probability of voice activity;
in accordance with a determination that the first threshold of voice activity is met, determining that a voice onset has occurred;
and
in accordance with a determination that the first threshold of voice activity is not met, forgoing determining that a voice onset has occurred,
wherein:
the first microphone is configured to rest at a first distance from a user's mouth when the frame is worn by the user;
and
the second microphone is configured to rest at a second distance from the user's mouth when the frame is worn by the user, the second distance unequal to the first distance.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/459,342Filed 31 Aug 2023
Priority: 7 Aug 2019
Published: 21 Dec 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification23 codes

G10L 25/78
Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00: detection of presence or absence of voice signals
H04R 1/028
Casings; Cabinets ; Supports therefor; Mountings therein: associated with devices performing functions other than acoustics, e.g. electric candles
G02B 27/0093
Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00: with means for monitoring data relating to the…
G02B 27/017
Head-up displays: head mounted

Family

Application62/884,143Us provisional application · filed 7 Aug 2019
Application63/001,118Us provisional application · filed 27 Mar 2020
Application16/987,267Continuation · filed 6 Aug 2020
Application17/714,708Continuation · filed 6 Apr 2022
Application18/459,342Continuation
US 11,328,740 B2Related patent
US 11,790,935 B2Related patent
US 12,094,489 B2Related patent
US 2021/0043223 A1Published application
US 2022/0230658 A1Published application
US 2023/0410835 A1This patent

From the US filing history. Foreign family members aren’t listed.

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