Patent ID: 11956497
Assignee: VIDAA (NETHERLANDS) INTERNATIONAL HOLDINGS B.V.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 4:
5. A method for processing audio and video data comprising:
receiving an audio and video file, wherein the audio and video file comprises main channel audio and audio description;
causing a processor of an electronic device to output the main channel audio and the audio description to a headphone, and causing the electronic device to output the main channel audio to a speaker in a scenario where a normal user and a visually impaired user watch the audio and video file at the same time and the visually impaired user wears the headphone; and
in response to no headphone being connected to the electronic device, causing the electronic device to output the main channel audio and the audio description to the speaker;
causing a decoder to decode the audio and video file to obtain a first decoding result corresponding to the main channel audio and a second decoding result corresponding to the audio description;
determining whether one or more external devices which have established Bluetooth connections with the electronic device comprise a headphone;
causing the decoder to analyze audio and video data in the audio and video file according to a protocol and determining whether the audio and video data has audio description; in response to the audio and video data not having audio description, causing the decoder to skip decoding of audio description.