Methods and system for controlling tactile content

1. An audio system comprising:

at least one transducer configured to present acoustic content and tactile content to a user, the tactile content being separate from the acoustic content; and

a controller configured to control the tactile content by altering spectral content of the acoustic content to improve perception of the tactile content, wherein

the tactile content is imparted to the user via actuation of the at least one transducer, and

the at least one transducer is further configured to present the acoustic content having the altered spectral content and the tactile content to the user.

2. The audio system of claim 1 , wherein the controller is further configured to provide navigation instructions to the user using the tactile content.

3. The audio system of claim 2 , wherein:

the at least one transducer comprises at least one cartilage conduction transducer attached to a corresponding ear of the user; and

the controller is further configured to selectively apply the tactile content to the corresponding ear via the at least one cartilage conduction transducer to provide the navigation instructions to the user.

4. The audio system of claim 1 , wherein the controller is further configured to increase speech intelligibility for audio content presented to the user by controlling the tactile content, the audio content comprising the acoustic content and the tactile content.

5. The audio system of claim 1 , wherein the controller is further configured to generate audio content having a defined level of a near field effect by controlling the tactile content, the audio content comprising the acoustic content and the tactile content.

6. The audio system of claim 1 , wherein the controller is further configured to:

control an amount of the tactile content when generating audio content with the acoustic content and the tactile content by altering spectral content of an audio signal that is input into the audio system.

7. The audio system of claim 6 , wherein the controller is further configured to:

control the amount of the tactile content based on a perception model with tactility information.

8. The audio system of claim 7 , further comprising:

at least one sensor configured to detect sounds produced by the at least one transducer; and

the controller is further configured to generate the perception model based at least in part on the detected sounds.

9. The audio system of claim 1 , wherein the controller is further configured to:

control the tactile content by enhancing a portion of a frequency spectrum of an audio signal that is input into the audio system when generating the acoustic content with the tactile content for presentation to the user.

10. The audio system of claim 1 , wherein the controller is further configured to:

enhance a sound source by controlling the tactile content, the sound source located at a location remote from the user.

11. The audio system of claim 1 , wherein the controller is further configured to:

perform tactile enhancement on an audio signal that is input into the audio system to create audio content for presentation to the user, the audio content comprising the acoustic content and the tactile content.

12. The audio system of claim 1 , further comprising:

at least one sensor configured to detect sounds produced by the at least one transducer; and

the controller is further configured to:

detect a level of degradation of the detected sounds; and

process an audio signal that is input into the audio system to mitigate degradation of the acoustic content, based on the detected level of degradation.

13. The audio system of claim 1 , wherein the at least one transducer includes a plurality of cartilage conduction transducers.

14. The audio system of claim 1 , wherein the at least one transducer includes at least one of: one or more air conduction transducers, one or more bone conduction transducers, and one or more cartilage conduction transducers.

15. The audio system of claim 1 , wherein the audio system is part of a headset.

16. A method comprising:

controlling tactile content by altering spectral content of acoustic content to improve perception of the tactile content, wherein the tactile content is separate from the acoustic content, and the tactile content is imparted to a user via actuation of at least one transducer; and

instructing the at least one transducer to present the acoustic content having the altered spectral content and the tactile content to the user.

17. The method of claim 16 , further comprising at least one of:

providing navigation instructions to the user using the tactile content;

increasing speech intelligibility for audio content presented to the user by controlling the tactile content, the audio content comprising the acoustic content and the tactile content; and

generating the acoustic content with the tactile content having a defined level of a near field effect by controlling the tactile content.

18. The method of claim 16 , further comprising:

when generating audio content with the acoustic content and the tactile content, controlling an amount of the tactile content by altering spectral content of an audio signal based on a perception model with tactility information.

19. The method of claim 16 , further comprising:

controlling the tactile content by enhancing a portion of a frequency spectrum of an audio signal when generating the acoustic content with the tactile content for presentation to the user.

20. A computer program product comprising a non-transitory computer-readable storage medium having instructions encoded thereon that, when executed by one or more processors, cause the one or more processors to:

control tactile content by altering spectral content of acoustic content to improve perception of the tactile content, wherein the tactile content is separate from the acoustic content, and the tactile content is imparted to a user via actuation of at least one transducer; and

instruct the at least one transducer to present the acoustic content having the altered spectral content and the tactile content to the user.