Methods and systems for cockpit speech recognition acoustic model training with multi-level corpus data augmentation

    公开(公告)号:US10997967B2

    公开(公告)日:2021-05-04

    申请号:US16388647

    申请日:2019-04-18

    Abstract: A method for initializing a device for performing acoustic speech recognition (ASR) using an ASR model, by a computer system including at least one processor and a system memory element. The method includes obtaining a plurality of voice data articulations of predetermined phrases, by the at least one processor via a user interface. The plurality of voice data articulations includes a first quantity of audio samples of actual articulated voice data, and each of the plurality of voice data articulations includes one of the audio samples including acoustic frequency components. The method further includes performing a plurality of augmentations to the plurality of voice data articulations of predetermined phrases, to generate a corpus audio data set that includes the first quantity of audio samples and a second quantity of audio samples including augmented versions of the first quantity of audio samples.

    AUTOMATIC SAFE-LANDING-SITE SELECTION FOR UNMANNED AERIAL SYSTEMS

    公开(公告)号:US20220121836A1

    公开(公告)日:2022-04-21

    申请号:US17076579

    申请日:2020-10-21

    Abstract: An unmanned aerial vehicle (UAV) navigation system is configured to automatically identify a suitable UAV landing site, for example, in forced-landing (e.g., emergency) scenarios. In some examples, the system receives two or more overlapping images depicting a landscape underneath an airborne unmanned aerial vehicle (UAV); generates, based on the two or more overlapping images, a depth map for the landscape; identifies, based on the depth map, regions of the landscape having a depth variance below a threshold value; determines, for each of the regions of the landscape having a depth variance below the threshold value, a landing zone quality score indicative of the depth variance and a semantic type of the region of the landscape; identifies, based on the landing zone quality scores, a suitable location for landing the UAV; and causes the UAV to automatically navigate toward and land on the suitable location.

    METHODS AND SYSTEMS FOR COCKPIT SPEECH RECOGNITION ACOUSTIC MODEL TRAINING WITH MULTI-LEVEL CORPUS DATA AUGMENTATION

    公开(公告)号:US20200335084A1

    公开(公告)日:2020-10-22

    申请号:US16388647

    申请日:2019-04-18

    Abstract: A method for initializing a device for performing acoustic speech recognition (ASR) using an ASR model, by a computer system including at least one processor and a system memory element. The method includes obtaining a plurality of voice data articulations of predetermined phrases, by the at least one processor via a user interface. The plurality of voice data articulations includes a first quantity of audio samples of actual articulated voice data, and each of the plurality of voice data articulations includes one of the audio samples including acoustic frequency components. The method further includes performing a plurality of augmentations to the plurality of voice data articulations of predetermined phrases, to generate a corpus audio data set that includes the first quantity of audio samples and a second quantity of audio samples including augmented versions of the first quantity of audio samples.

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