US 12,730,605 B2Granted

Audio output based on dynamic audio frame selection

AssigneeAmazon Technologies, Inc.

InventorsMark Andress, Saurabh Gupta, Taylor Elliot Watson

Life of this patent

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Abstract

Systems and methods are provided to output audio data based on metadata associated with the audio data. A system can provide a buffer command to a plurality of computing devices. Based on providing the buffer command, the system can obtain, from the plurality of computing devices, a plurality of sets of audio data and a plurality of sets of metadata. The system can identify, for each time period of a plurality of time periods, a respective audio frame from the plurality of sets of audio data based on the plurality of sets of metadata. The system can generate a continuous audio stream based on identifying the respective audio frames and can route an output based on the continuous audio stream to a computing system.

Claims20

Dependent claims

A system comprising:

data processing hardware;
and
memory in communication with the data processing hardware, the memory storing instructions that when executed on the data processing hardware cause the data processing hardware to:
identify a plurality of first computing devices located within a first environment;
provide a buffer command to the plurality of first computing devices, wherein each computing device of the plurality of first computing devices is configured to synchronously flush a respective buffer based on the buffer command;
obtain, from the plurality of first computing devices, a plurality of first sets of audio data and associated metadata based on the buffer command, wherein each first set of audio data of the plurality of first sets of audio data comprises a respective audio frame for each time period of a plurality of time periods;
dynamically select, for each time period of the plurality of time periods, a respective audio frame from the plurality of first sets of audio data based on the associated metadata;
determine a second set of audio data based on dynamically selecting, for each time period of the plurality of time periods, the respective audio frame, wherein the second set of audio data comprises at least one respective audio frame obtained from each first computing device of the plurality of first computing devices;
generate a continuous audio stream based on the second set of audio data;
perform one or more of noise suppression, automatic gain control, or echo cancellation to the continuous audio stream and subsequently generate an output;
and
route the output to one or more second computing devices located within a second environment.

9 more elements

A method comprising:

providing a buffer command to a first computing device and a second computing device to cause the first computing device to flush a first buffer based on the buffer command and to cause the second computing device to flush a second buffer based on the buffer command;
obtaining, from the first computing device, a first set of audio frames and a first set of metadata subsequent to providing the buffer command to the first computing device, wherein the first set of audio frames comprises, for each time period of a plurality of time periods, a respective audio frame of the first set of audio frames;
obtaining, from the second computing device, a second set of audio frames and a second set of metadata subsequent to providing the buffer command to the second computing device, wherein the second set of audio frames comprises, for each time period of the plurality of time periods, a respective audio frame of the second set of audio frames;
identifying, for each time period of the plurality of time periods, a respective audio frame from the first set of audio frames and the second set of audio frames based on the first set of metadata and the second set of metadata;
determining a third set of audio frames based on identifying, for each time period of the plurality of time periods, the respective audio frame from the first set of audio frames and the second set of audio frames, wherein the third set of audio frames comprises a particular audio frame of the first set of audio frames and a particular audio frame of the second set of audio frames;
generating a continuous audio stream based on the third set of audio frames;
and
routing an output based on the continuous audio stream to one or more of the first computing device, the second computing device, or a third computing device.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/893,358Filed 23 Sep 2024
Published: US 2026/0086763 A126 Mar 2026
Granted: 8 Sep 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

G06F 3/165
Sound input; Sound output: management of the audio stream, e.g. setting of volume, audio stream path
G06F 16/683
Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually: using metadata automatically…
G10K 11/17823
Characterised by the analysis of the input signals only: reference signals, e.g. ambient acoustic environment
H03G 3/3089
In amplifiers having semiconductor devices: control of digital or coded signals