Systems and methods that leverage deep learning to selectively store audiovisual content

A method to generate an edited video including an ambient soundtrack, comprising:

• obtaining, by one or more computing devices, data indicative of a video stream comprising a plurality of sequential image frames and an associated audio signal;
• analyzing, by the one or more computing devices, the audio signal with a machine-learned audio classifier model to determine a plurality of audio classifier labels associated with a plurality of portions of the audio signal;
• generating, by the one or more computing devices, an ambient soundtrack comprising at least a first portion of the audio signal based at least in part on the plurality of audio classifier labels, wherein generating the ambient soundtrack based at least in part on the plurality of audio classifier labels comprises selecting for inclusion in the ambient soundtrack portions of the audio signal that have audio classifier labels associated with ambient sound while rejecting portions of the audio signal that have audio classifier labels associated with foreground sound;
• generating, by the one or more computing devices, an image stream comprising at least a subset of the plurality of sequential image frames;
• and
• generating, by the one or more computing devices, an edited video comprising the ambient soundtrack and the image stream.

A method for capturing an image, comprising:

• capturing, by an image sensor of an image capture device, one or more images;
• maintaining, by the image capture device, a copy of the one or more captured images in a temporary image buffer of the image capture device;
• receiving, by the image capture device, an audio signal;
• analyzing, by the image capture device, at least a portion of the audio signal with a machine-learned audio classifier model to determine a first audio classifier label descriptive of an audio event;
• responsive to determining the first audio classifier label, determining, by the image capture device, a time displacement amount associated with the first audio classifier label;
• using, by the image capture device, the time displacement amount to identify a first captured image associated with the first audio classifier label from the one or more captured images maintained in the temporary image buffer, wherein the first captured image is temporally displaced from the portion of the audio signal labeled with the first audio classifier label by the time displacement amount;
• and
• storing, by the image capture device, a copy of the first captured image in a non-volatile memory of the image capture device.