4 results about "Digital audio" patented technology

A recording medium and a method for previewing and selecting digital audio/video data unit on the recording medium are provided. The recording medium includes an audio/video pack of the original film, an audio/video pack of the preview film, a background page, and a page control descriptor. After having received a switch button information from a user, a medium reproducing system reads, de-multiplexes, and decodes the information correspond to a specified audio/video pack of the preview film. The medium reproducing system also composes the decoded video data of the background page and the decoded video data of different resolutions to output to a display.

A digital audio playback device (DAPD) includes: 1) an external interface for coupling to a connected processing system that executes a user interface application program that accesses and controls the digital audio playback device via the external interface; 2) a memory coupled to the external interface for storing a reverse DAPD application programming interface (API); and 3) a processor coupled to the memory and the external interface for executing the reverse DAPD API. The reverse DAPD API causes the processor to access and control a user interface operated by the user interface application program displayed on a monitor screen of the connected processing system.

An embodiment of the invention provides an audio processing method, an audio processing device and terminal equipment. The an audio processing method comprises the steps of comparing a sampling rate of an audio signal with a preset sampling rate limiting value, and carrying out frequency raising treatment on the audio signal when the sampling rate of the audio signal is lower than the preset sampling rate limiting value, so that the sampling rate of the audio signal is matched with a sampling rate which can be decoded by a digital earphone. The audio processing method, the audio processing device and the terminal equipment solve the technical problem that high sound quality characteristic of the digital earphone cannot be fully exerted due to low sampling efficiency of the audio signal in the prior art is solved, and the playing sound quality of digital audio equipment is improved.