Apparatus and method for processing audio signals recorded on a medium
AssigneeLG Electronics Inc.
InventorsHan Jung, Ki Won Kim
Life of this patent
Estimating the term…
Abstract
This invention relates to a karaoke CD format and a device for controlling audio signals utilizing the karaoke CD format, which provides a user with selective reproduction of the voice of a player. The karaoke CD format includes a CD format divided into video sectors and audio sectors. The audio sectors are further divided into a part for recording accompaniment sound and playing sound at the same time and a part for recording accompaniment sound only. There is provided record coding information for distinguishing the parts.
Claims11
An apparatus for processing digital data reproduced from a recording medium, the digital data including:
- A) at least two types of digital audio data, wherein the contents of the two types of digital audio data are different from each other;
- and
- B) coding information, including:
- 1) first information indicating a coding mode of the digital audio data on the recording medium, and
- 2) second information, different than said first information, distinguishing a first type of digital audio data from a second type of digital audio data,
- said apparatus comprising:
- a) a data processor processing the digital data reproduced from the recording medium, said data processor including a system time clock, a memory for storing said first and second types of digital audio data, and an audio presentation part controlling a presentation time of said first or second type of digital audio data based on said system time clock;
- and
- b) a controller receiving the second information from the processed digital data, and controlling the data processor to output selectively one of the first or the second types of digital audio data based on the received second information.
A method for processing digital data reproduced from a recording medium, the digital data including:
- A) at least two types of digital audio data, wherein the contents of the two types of digital audio data are different from each other;
- and
- B) coding information, including:
- 1) first information indicating a coding mode of the digital audio data on the recording medium, and
- 2) second information, different than said first information, distinguishing a first type of digital audio data from a second type of digital audio data,
- the steps comprising:
- a) processing the digital data reproduced from the recording medium;
- b) extracting a system time clock from the digital data;
- c) storing said first and second types of digital audio data;
- d) controlling a presentation time of said first or second type of digital audio data based on said system time clock,
- e) receiving the second information from the processed digital data, and
- f) selectively outputting one of the first or the second type of digital audio data based on the received second information.
Dependencies are inferred from the claim text.