Huawei Technologies Co., Limited

Dolby Laboratories Licensing Corporation

Dong Shi

Glenn N Dickins

David Gunawan

Hannes Muesch

Kai Li

Jie Su

Chunjian Li

Paul Holmberg

Methods for echo estimation or echo management (echo suppression or cancellation) on an input audio signal, with at least one of adaptation of a sparse prediction filter set, modification (for example, truncation) of adapted prediction filter impulse responses, generation of a composite impulse response from adapted prediction filter impulse responses, or use of echo estimation and/or echo management resources in a manner determined at least in part by classification of the input audio signal as being (or not being) echo free. Other aspects are systems configured to perform any embodiment of any of the methods.

Echo estimation and management with adaptation of sparse prediction filter set

An audio transmission method includes: a second device sends noise energy data on the second device end and transmission efficiency data to a first device; the first device determines a first bit rate based on the noise energy data, and determines a second bit rate based on the transmission efficiency data; the first device encodes an audio stream based on a lower bit rate of the first bit rate and the second bit rate to obtain audio data; the first device sends the audio data obtained by encoding to the second device.

Audio transmission method and electronic device

A speech wakeup method and device, and a readable storage medium are provided. The voice wakeup method includes: detecting voice signals that are input into at least two microphones and that meet a first condition; and determining, based on whether voice energy of the voice signals input into the at least two microphones meets a second condition, whether to wake up the electronic device; and if the second condition is met, waking up the electronic device; or if the second condition is not met, continuing to detect a voice signal input into the microphone. The electronic device can be woken up in a wakeup-keyword-free manner.

Voice wakeup method and device

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Singapore, Singapore

Dong Shi