AUDIO RENDERING SYSTEM CATEGORISING GEOSPATIAL OBJECTS

• US 20150063610A1
• Filed: 08/15/2014
• Published: 03/05/2015
• Est. Priority Date: 08/30/2013
• Status: Abandoned Application

• Current Assignee: GN Store Nord A/S
• Original Assignee: GN Store Nord A/S
• Inventors: MOSSNER, Peter
• Application Number:
  US14/461,276
• Publication Number:
  US 20150063610A1
• Time in Patent Office: Days
• US Class Current: 381/307
• CPC Class Codes: G01C 21/20 Instruments for performing navigational calculations G01C21/24, G01C21/26 take precedence
• CPC Class Codes: G09B 21/006 using audible presentation of the information
• 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 5/005 of the pseudo five- or more-channel type, e.g. virtual surround
• CPC Class Codes: H04S 7/303 Tracking of listener position or orientation
• CPC Class Codes: H04S 7/304 For headphones

Abstract

The present disclosure relates to a method and an audio rendering system comprising at least one portable terminal configured to receive geospatial object data from at least one geospatial object data server. The geospatial object data is interrelated to a geographical position. The at least one portable terminal is further configured to render retrieved geospatial object data into an acoustic scene by a rendering algorithm. The acoustic scene is spatially interrelated to the geographical position. The at least one audio unit is configured to sound a rendered acoustic scene information into at least one ear of a user. The audio rendering system is further configured for rendering retrieved geospatial object data into the acoustic scene based on categorised acoustic scene information representing a corresponding categorised geospatial object data.

Claims

1. An audio rendering system comprising:

at least one portable terminal configured to receive geospatial object data from at least one geospatial object data server, the geospatial object data being interrelated to a geographical position, the at least one portable terminal being configured to render the retrieved geospatial object data into an acoustic scene using a rendering algorithm, the acoustic scene being spatially interrelated to the geographical position in such a way that the acoustic scene is perceived observed from the geographical position; and

at least one audio unit configured to sound a rendered acoustic scene information into at least one ear of a user;

wherein the at least one portable terminal is configured to render the retrieved geospatial object data into the acoustic scene based on categorized acoustic scene information representing corresponding categorized geospatial object data.

2. The audio rendering system according to claim 1, wherein the categorized acoustic scene information comprises a distinguishing sound representing the corresponding categorized geospatial object data.

3. The audio rendering system according to claim 1, wherein the audio unit comprises a geographical position unit configured to estimate the geographical position.

4. The audio rendering system according to claim 1, wherein the at least one audio unit comprises a geographical orientation unit for estimating a geographical orientation of the user, when the geographical orientation unit is placed in its intended operational position.

5. The audio rendering system according to claim 4, wherein the rendering algorithm is configured to render the retrieved geospatial object data into the acoustic scene based on the geographical position and/or the geographical orientation.

6. The audio rendering system according to claim 1, wherein the rendering algorithm is configured to render the retrieved geospatial object data into the acoustic scene based on a field-of-view range.

7. The audio rendering system according to claim 1, wherein the portable terminal comprises a category selection tool configured to select the categorized geospatial object data, wherein the at least one portable terminal is configured to render the geospatial object data into the acoustic scene based on at least one category variable.

8. The audio rendering system according to claim 1, wherein the at least one portable terminal comprises a safety tool configured to provide at least one warning sound when a warning object is within a warning zone, and wherein the at least one warning sound is spatially interrelated to a geographical position of the warning object.

9. The audio rendering system according to claim 8, wherein the safety tool is configured to mute at least one rendered acoustic scene information, and to play the at least one warning sound.

10. The audio rendering system according to claim 1, further comprising a routing tool for providing at least one route between at least one start location and at least one end location, wherein the rendered acoustic scene information is spatially interrelated to the geographical position along the at least one route.

11. The audio rendering system according to claim 10, wherein the routing tool is configured to handle a geographical marker, and wherein the geographical marker is configured to represent an acoustic marker being spatially interrelated to the geographical position.

12. The audio rendering system according to claim 10, wherein the routing tool is configured to receive at least one geographical acoustic marker from a marker server.

13. The audio rendering system according to claim 1, further comprising a user interface for allowing a user to focus on a geospatial object.

14. The audio rendering system according to claim 13, wherein the user interface is configured to determine the geospatial object based on an intersection between a line of sight from the geographical position for a given orientation and a geographical position of the geographical object.

15. The audio rendering system according to claim 1, wherein the audio rendering system is configured to resolve multiple geospatial object data within a given area by separating each geospatial object data spatially or temporally.

16. A method of sounding rendered acoustic scene information into at least one ear of a user using an audio rendering system, comprising:

receiving geospatial object data from at least one geospatial object data server, wherein the geospatial object data is interrelated to a geographical position; and

rendering the retrieved geospatial object data into an acoustic scene using a rendering algorithm, wherein the acoustic scene is spatially interrelated to the geographical position;

wherein the act of rendering the retrieved geospatial object data into the acoustic scene is performed based on a categorized acoustic scene representation corresponding to a categorized geospatial object data.

17. The method according to claim 16, further comprising:

providing at least one route with the geographical position between at least one start location and at least one end location; and

changing the geographic position to another position located between the at least one start location and the at least one end location, and sounding rendered acoustic scene information into the at least one ear of the user for the other position.