Method and apparatus for mixing audio stream and information storage medium thereof

• US 20040186734A1
• Filed: 12/29/2003
• Published: 09/23/2004
• Est. Priority Date: 12/28/2002
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Heo, Jung-kwon, Jung, Kil-soo, Chung, Hyun-kwon, Park, Sung-wook
• Application Number:
  US10/745,935
• Publication Number:
  US 20040186734A1
• Time in Patent Office: Days
• US Class Current: 704/278
• CPC Class Codes: G11B 20/10527 Audio or video recording; Data buffering arrangements G11B20/12 - G11B20/18 take precedence
• CPC Class Codes: G11B 2020/10546 specifically adapted for audio data
• CPC Class Codes: G11B 2020/10592 specifically adapted for recording or reproducing multichannel signals
• CPC Class Codes: G11B 2220/2537 Optical discs

Abstract

A method and apparatus for mixing audio streams, and an information storage medium that stores mixing information. The information storage medium includes at least one audio stream that contains a multiplicity of audio data obtained from respective multiple channels, and mixing information used to mix at least parts of the multiplicity of audio data. Accordingly, it is possible to mix and reproduce different types of channel components without changing the channel formats of different audio streams. Furthermore, it is also possible to perform dynamic mixing on multiple channel components, thus enabling adaptation to a change in audio content and characteristics thereof and thereby reproducing audio data more appropriately. In particular, since mixing information is described in interactive data allowing an interaction with a user, it is possible to provide the user with more applications.

Claims

1. An apparatus which reproduces an audio stream, comprising:

a decoder that decodes an audio stream containing a multiplicity of audio data obtained from respective multiple channels; and

a mixer that mixes at least two parts of the decoded audio data based on mixing information.

2. The apparatus of claim 1, wherein the mixer adjusts output levels of audio data, based on mixing coefficient information contained in the mixing information.

3. The apparatus of claim 1, wherein the mixer combines the audio data from at least two channels of the multiple channels, based on mixing-relation information contained in the mixing information.

4. The apparatus of claim 1, wherein the mixer adjusts output levels of the audio data and mixes the audio data obtained from at least two channels of the multiple channels, based on the mixing information that is recorded in a markup document in a markup language that enables an interaction with a user or is recorded in program data which is recorded in a different file from the markup document and provides the user with a predetermined application.

5. The apparatus of claim 1, wherein the mixer adjusts output levels of the audio data and mixes the audio data obtained from at least two channels of the multiple channels, based on the mixing information including stream channel type information and attributes of the stream channel type information, the stream channel type information specifying the audio data, obtained from predetermined channels of the audio streams, with predetermined integers and the attributes representing mixing coefficient information that defines the output levels of the audio data.

6. An apparatus that reproduces an audio stream, comprising:

a decoder that decodes a first audio stream containing a multiplicity of audio data obtained from respective multiple channels and decodes a second audio stream containing a multiplicity of audio data obtained from the respective multiple channels; and

a mixer that mixes audio data from at least one channel of the multiple channels for the first audio stream and audio data from at least one channel of the multiple channels for the second audio stream, based on mixing information.

7. The apparatus of claim 6, further comprising a network transceiver that receives at least one of the first and second audio streams via a network.

8. The apparatus of claim 6, further comprising a reader that reads at least one of the first and second audio streams from a disc-type information storage medium.

9. The apparatus of claim 6, further comprising:

a network transceiver that receives at least one channel of the first and second audio streams via a network; and

a reader that reads other audio streams from a disc-type information storage medium.

10. The apparatus of claim 9, wherein the network transceiver receives the mixing information via the network.

11. The apparatus of claim 9, wherein the reader reads the mixing information from the disc-type information storage medium.

12. The apparatus of claim 6, wherein the mixer adjusts output levels of the audio data based on mixing coefficient information contained in the mixing information, the mixing coefficient information being used to adjust the output levels of the audio data.

13. The apparatus of claim 6, wherein the mixer combines the audio data from at least two channels of the multiple channels for multiple audio streams, based on mixing-relation information contained in the mixing information, the mixing-relation information specifying audio data obtained from the multiplicity of audio data.

14. The apparatus of claim 6, wherein the mixer detects audio data, based on mixing-relation information specifying audio data obtained from the multiplicity of audio data and channel information contained in the audio data, and adjusts output levels of the detected audio data based on mixing coefficient information contained in the mixing information, the mixing coefficient information being used to adjust the output levels of the detected audio data.

15. The apparatus of claim 6, wherein the mixer performs dynamic mixing based on the mixing information.

16. The apparatus of claim 6, wherein the mixer adjusts output levels of audio data and mixes audio data obtained from at least two channels of the multiple channels, based on the mixing information described in interactive data.

17. The apparatus of claim 6, wherein the mixer adjusts output levels of the audio data and mixes the audio data obtained from at least two channels of the multiple channels, based on the mixing information that is recorded in a markup document in a markup language that enables an interaction with a user or is recorded in program data which is recorded in a different file from the markup document and provides the user with a predetermined application.

18. The apparatus of claim 6, wherein the mixer adjusts output levels of the audio data and mixes audio data obtained from at least two channels of the multiple channels, based on the mixing information including stream channel type information and attributes of the stream channel type information, the stream channel type information specifying audio data obtained from predetermined channels with predetermined integers and the attributes representing mixing coefficient information that specifies the output levels of the audio data.

19. An apparatus which reproduces an audio stream, comprising:

a decoder that decodes an audio stream containing a multiplicity of audio data obtained from respective multiple channels; and

a mixer that mixes at least two parts of the decoded audio data based on mixing information recorded in interactive data, without changing channel formats of different audio streams.

20. The apparatus of claim 19, wherein the mixer adjusts output levels of the audio data based on mixing coefficient information contained in the mixing information recorded in the interactive data.

21. An audio mixing apparatus, comprising:

a decoder and a mixer, mixing and reproducing different types of channel components without changing channel formats of audio streams, constituting different types of audio content.

22. A reproducing apparatus, comprising:

a decoder and a mixer, adjusting output levels of audio data from multiple audio streams, based on mixing coefficient information contained in mixing information, and mixing the adjusted audio data based on a mixing-relation information contained in the mixing information.