ARRANGEMENT AND METHOD FOR REPRODUCING AUDIO DATA OF AN ACOUSTIC SCENE

• US 20160119737A1
• Filed: 05/23/2014
• Published: 04/28/2016
• Est. Priority Date: 05/24/2013
• Status: Active Grant

• Current Assignee: Barco NV
• Original Assignee: Barco NV
• Inventors: MEHNERT, Markus, STEFFENS, Robert, DAUSEL, Martin, MEISSNER, Henri
• Granted Patent: US 10,021,507 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04R 5/04 Circuit arrangements, e.g. for selective connection of amplifier inputs/outputs to loudspeakers, for loudspeaker detection, or for adaptation of settings to personal preferences or hearing impairments combinations of amplifiers H03F3/68; stereophonic systems H04S
• CPC Class Codes: H04S 2400/11 Positioning of individual sound objects, e.g. moving airplane, within a sound field H04S2420/13 takes precedence
• CPC Class Codes: H04S 2420/01 Enhancing the perception of the sound image or of the spatial distribution using head related transfer functions [HRTF's] or equivalents thereof, e.g. interaural time difference [ITD] or interaural level difference [ILD]
• CPC Class Codes: H04S 7/303 Tracking of listener position or orientation
• CPC Class Codes: H04S 7/306 For headphones

Abstract

An arrangement, for reproducing audio data of an acoustic scene, adapted for generating audio signals for at least a first and a second headphone channel of a headphone assembly, the audio signals corresponding to at least one audio object and/or sound source in the acoustic scene comprising at least one given close range and at least one given distant range arranged around a listener, the arrangement comprising a first headphone channel; a second headphone channel; a basic channel provider comprising at least a basic system adapted for reproducing audio signals corresponding to at least one audio object and/or sound source arranged in at least one distant range; a proximity channel provider comprising at least a proximity system adapted for reproducing audio signals corresponding to at least one audio object and/or sound source arranged in at least one close range.

Claims

1. An arrangement for reproducing audio data of an acoustic scene in a given environment, with the arrangement adapted for generating audio signals for at least a first headphone channel and a second headphone channel of a headphone assembly, with the audio signals corresponding to at least one audio object and/or sound source in the acoustic scene comprising at least one given close range and at least one given distant range arranged around a listener such that any of the at least one distant ranges is farther away from the listener than any of the at least one close ranges, wherein the arrangement comprising:

a first headphone channel;

a second headphone channel;

a basic channel provider comprising at least a basic system adapted for reproducing audio signals corresponding to at least one audio object and/or sound source arranged in at least one distant range;

a proximity channel provider comprising at least a proximity system adapted for reproducing audio signals corresponding to at least one audio object and/or sound source arranged in at least one close range, wherein;

the basic channel provider is configured to provide a first basic effect channel and a second basic effect channel of the basic system to create at least one basic audio signal corresponding to at least one distant range;

the proximity channel provider is configured to provide a first proximity effect channel and a second proximity effect channel of the proximity system to create at least one proximity audio signal corresponding to at least one close range; and

wherein

the first headphone channel is driven by the first basic effect channel and the first proximity effect channel; and

the second headphone channel is driven by the second basic effect channel and the second proximity effect channel.

2. The arrangement according to claim 1, wherein the basic system and the proximity system are adapted to process panning information of the same audio object and/or the same sound source by panning this audio object and/or this sound source between the basic system and the proximity system.

3. The arrangement according to claim 2, wherein the basic system and the proximity system are adapted to process panning information of the same audio object and/or the same sound source by panning this audio object and/or this sound source between the basic system and the proximity system in such a manner that this audio object and/or this sound source is panned within one of the close or distant ranges or between different ranges.

4. The arrangement according to claim 1, wherein

the basic system comprises head related transfer functions and/or binaural room impulse responses based basic system wherein the basic channel provider is a 2D or 3D channel provider adapted to provide the first and second basic effect channels using respective head related transfer functions and/or binaural room impulse responses to generate an audio signal for the respective first and second headphone channels, the audio signal being adapted for panning at least one audio object and/or at least one sound source in at least one distant range of the listener.

5. The arrangement according to claim 1, wherein

the proximity system comprises head related transfer functions and/or binaural room impulse responses based proximity system

wherein the proximity channel provider is a 2D or 3D channel provider is adapted to provide the first and second proximity effect channels using respective head related transfer

functions and/or binaural room impulse responses to generate an audio signal for the respective first and second headphone channels, the audio signal being adapted for panning at least one audio object and/or from at least one sound source in at least one close range of the listener.

6. The arrangement according to claim 1, wherein

the basic system is a surround system with at least four loudspeakers in the given environment, wherein the basic channel provider is a surround channel provider for providing the first and second basic effect channels by generating an audio signal for the respective loudspeakers of the surround system corresponding to at least one audio object and/or from at least one sound source panned to at least one distant range.

7. The arrangement according to claim 1, wherein

the proximity system is at least one sound bar comprising a plurality of loudspeakers.

15. The use of an arrangement according to claim 1 for executing a method for reproducing audio data corresponding to at least one of interactive gaming scenarios, software scenarios, audio scenarios or movie scenarios.

8. The method for reproducing audio data of an acoustic scene in a given environment, with the method adapted for generating audio signals for at least a first headphone channel and a second headphone channel of a headphone assembly, with the audio signals corresponding to at least one audio object and/or at least one sound source in a given environment comprising:

subdividing the acoustic scene and/or the environment into at least one distant range and at least one close range arranged around a listener;

providing a first headphone channel;

providing a second headphone channel;

wherein

a basic channel provider provides a first basic effect channel and a second basic effect channel of a basic system to create at least one basic audio signal corresponding to at least one distant range;

a proximity channel provider provides a first proximity effect channel and a second proximity effect channel of a proximity system to create at least one proximity audio signal corresponding to at least one close range; and

wherein

the first headphone channel is driven by the first basic effect channel and the first proximity effect channel; and

the second headphone channel is driven by the second basic effect channel and the second proximity effect channel.

9. The method according to claim 8, wherein

panning information of the same audio object and/or the same sound source are processed by the basic system and the proximity system for panning this audio object and/or this sound source between the basic system and the proximity system.

10. The method according to claim 9, wherein

panning information of the same audio object and/or the same sound source are processed in such a manner that this audio object and/or this sound source is panned within one of the close or distant ranges or between different ranges.

11. The method according to claim 8, wherein

the basic channel provider formed as a 2D or 3D channel provider provides the first and second basic effect channels using respective head related transfer functions and/or binaural room impulse responses to generate an audio signal for the respective first and second headphone channels, with the audio signal adapted for panning at least one audio object and/or at least one sound source in a respective distant range.

12. The method according to claim 8, wherein

the proximity channel provider formed as a 2D or 3D channel provider provides the first and second proximity effect channels using respective head related transfer functions and/or binaural room impulse responses to provide an audio signal for panning at least one audio object and/or at least one sound source in at least one close range of a listener for the respective first and second headphone channels.

13. The method according to claim 8, wherein the basic channel provider additionally formed as a surround channel provider for a surround system with a given number of loudspeakers provides the first and second basic effect channels by generating an audio signal for panning at least one audio object and/or from at least one sound source in a respective distant range of a listener.

14. The computer-readable recording medium having a computer program for executing the method according to claim 8.