Abstract: Embodiments of the present application disclose a method for audio and video processing and an electronic device. A first decoding result corresponding to main channel audio and a second decoding result corresponding to audio description are acquired according to audio data in an audio and video file; and the first decoding result as well as an audio mixed result of the first decoding result and the second decoding result are output respectively through different audio output devices, so that in a scenario where a normal user and a visually impaired user watch audio and video at the same time, the normal user and the visually impaired user can select different audio output devices for audio listening to ensure that the two do not affect each other, which satisfies the needs of the normal user and the visually impaired user to watch at the same time.

Abstract: Disclosed are a display apparatus and a method for sound processing. The method includes: receiving a command for setting a sound mode currently used by the display apparatus as a target sound mode; in response to the command, display a sound setting menu on the display of the display apparatus, and display a name of the target sound mode and one or more context menus corresponding to the target sound mode; and in response to at least one context menu of the one or more context menus being a non-default context menu, display a prompt identifier on the sound setting menu, wherein the non-default context menu refers to a context menu with a current sound effect parameter that is a non-default value.

Abstract: The disclosure provides a display apparatus and a method. The display apparatus includes a display, a communicator, an external device interface, a memory and a processor. The processor is configured for: receiving a command for adjusting an audio state of an external audio output device in connection with the display apparatus; determining a target audio state to which the external audio output device needs to be adjusted by parsing the command; sending, to the external audio output device, an audio state adjusting instruction for adjusting the audio state to adjust a current audio state of the external audio output device to the target audio state and an instruction for requesting audio state to request the external audio output device to send the target audio state to the display apparatus; receiving the target audio state returned from the external audio output device and displaying the target audio state.