METHOD FOR OUTPUTTING AN AUDIO SIGNAL INTO AN INTERIOR VIA AN OUTPUT DEVICE COMPRISING A LEFT AND A RIGHT OUTPUT CHANNEL

• US 20200137496A1
• Filed: 03/14/2018
• Published: 04/30/2020
• Est. Priority Date: 03/21/2017
• Status: Active Grant

• Current Assignee: Ask Industries GmbH (JVC Kenwood Corporation)
• Original Assignee: Ask Industries GmbH (JVC Kenwood Corporation)
• Inventors: KOTULLA, Daniel
• Granted Patent: US 11,153,686 B2
• Time in Patent Office: Days
• CPC Class Codes: H04R 2499/13 Acoustic transducers and sound field adaptation in vehicles
• CPC Class Codes: H04R 3/12 for distributing signals to two or more loudspeakers specially adapted for hearing aids H04R25/407
• CPC Class Codes: H04R 5/02 Spatial or constructional arrangements of loudspeakers
• 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 1/002 Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution control circuits for electronic adaptation of the sound field H04S7/30
• CPC Class Codes: H04S 1/007 in which the audio signals are in digital form data reduction aspects thereof based on psychoacoustics G10L19/02
• CPC Class Codes: H04S 2400/05 Generation or adaptation of centre channel in multi-channel audio systems

Abstract

Method for outputting an audio signal (S) into an interior (4) forming part of a passenger compartment (2) of a motor vehicle (3) via an acoustic output device (7) comprising a left and a right acoustic output channel (5, 6), comprising the steps:

• • supplying an audio signal (S),
  • splitting of the supplied audio signal (S) into a plurality of acoustic audio signal components (S.1—S.3) dependent on the direction of perception,
  • mixing of each acoustic audio signal component (S.1—S.3) dependent on the direction of perception to a right and/or a left output channel (5, 6) of an acoustic output device (7) comprising a right and a left acoustic output channel (5, 6),
  • output of the acoustic audio signal components (S.1—S.3) dependent on the direction of perception via the right and/or the left acoustic output channel (5, 6) of the acoustic output device (7).

Claims

1. Method for outputting an audio signal (S) into an interior (4) forming part of a passenger compartment (2) of a motor vehicle (3) via an acoustic output device (7) comprising a left and a right acoustic output channel (5, 6), comprising the steps:

supplying an audio signal (S),

splitting of the supplied audio signal (S) into a plurality of acoustic audio signal components (S.1—

S.3) dependent on the direction of perception,

mixing of each acoustic audio signal component (S.1—

S.3) dependent on the direction of perception to a right and/or left output channel (5, 6) of an acoustic output device (7) comprising a right and a left acoustic output channel (5, 6),

output of the acoustic audio signal components (S.1—

S.3) dependent on the direction of perception via the right and/or the left acoustic output channel (5, 6) of the acoustic output device (7).

2. Method according to claim 1, characterized in that the supplied audio signal (S) is split into a center audio signal component (S.2), a left audio signal component (S.1) perceived to the left of the center audio signal component (S.2) and a right audio signal component (S.3) perceived to the right of the center audio signal component (S.2).

3. Method according to claim 2, characterized in that the left audio signal component (S.1) is output via the left acoustic output channel (5) of the acoustic output device (7), the right audio signal component (S.3) is output via the right acoustic output channel (6) of the acoustic output device (7), and the center audio signal component (S.2) is output via the left and/or via the right output channel (5, 6) of the output device (7).

4. Method according to claim 3, characterized in that the center audio signal component (S.2) is output both via the right and via the left acoustic output channel (5, 6) of the acoustic output device (7).

5. Method according to claim 4, characterized in that a first portion (S.2.1) of the center audio signal component (S.2) determined by a weighting factor (G) is output via the left acoustic output channel (5) of the acoustic output device (7) and a second portion (S.2.2) of the center audio signal component (S.2) determined by a weighting factor (G) is output via the right acoustic output channel (6) of the acoustic output device (7).

6. Method according to claim 5, characterized in that the weighting factor (G) is varied as a function of definable or defined boundary conditions.

7. Method according to claim 6, characterized in that the weighting factor (G) is varied as a function of certain boundary conditions relating to the occupation of a passenger compartment (2) by vehicle occupants.

8. Method according to claim 1, characterized in that the splitting of the supplied audio signal (S) into a plurality of acoustic audio signal components (S.1—

S.3) dependent on the direction of perception is carried out by means of a source separation device (10).

9. Method according to claim 1, characterized in that the audio signal (S) is a stereo signal.

10. Device (1) for outputting an audio signal (S) into an interior (4) forming part of a passenger compartment (2) of a motor vehicle (3) via an acoustic output device (7) comprising a left and a right acoustic output channel (5, 6), characterized by:

a splitting device (8), which is adapted to split a supplied audio signal (S) into a plurality of acoustic audio signal components (S.1—

S.3) dependent on the direction of perception,

a mixing device (9), which is adapted to mix each acoustic audio signal component (S.1—

S.3) dependent on the direction of perception to a right or a left output channel (5, 6) of an acoustic output device (7) comprising a right and a left acoustic output channel (5, 6),

an acoustic output device (7) comprising two acoustic output channels (5, 6) that is adapted to output the acoustic audio signal components (S.1—

S.3) dependent on the direction of perception via the right and/or left acoustic output channel (5, 6) of the acoustic output device (7).

11. Motor vehicle (3), comprising a device (1) according to claim 10.