Masking open space noise using sound and corresponding visual

Patent metadata

Field	Value
Publication number	US-10923096-B2
Application number	US-201916656315-A
Country	US
Kind code	B2
Filing date	Oct 17, 2019
Priority date	Dec 20, 2013
Publication date	Feb 16, 2021
Grant date	Feb 16, 2021

Abstract

Methods and apparatuses for addressing open space noise are disclosed. In one example, a method for masking open space noise includes optimizing a recorded naturally occurring sound signal. The method also includes outputting the optimized recorded naturally occurring sound signal from a plurality of speakers distributed in the open space. Further, the method includes displaying a natural system complementing the optimized recorded naturally occurring sound signal.

First claim

What is claimed is:

1. A method for masking open space noise comprising:
optimizing a recorded naturally occurring sound signal to mask noise in an open space to generate an optimized recorded naturally occurring sound signal, wherein optimizing the recorded naturally occurring sound signal to mask noise in the open space comprises modifying a frequency characteristic of the recorded naturally occurring sound signal;
outputting the optimized recorded naturally occurring sound signal from a plurality of speakers distributed in the open space; and
displaying a natural system complementing the optimized recorded naturally occurring sound signal, wherein the natural system is located within the open space.

2. The method of claim 1 , wherein the natural system comprises a water element system generating a sound of flowing water.

3. The method of claim 2 , wherein the water element system comprises a waterfall.

4. The method of claim 1 , wherein modifying the frequency characteristic of the recorded naturally occurring sound signal comprises increasing a frequency of the recorded naturally occurring sound signal.

5. The method of claim 4 , wherein increasing the frequency of the recorded naturally occurring sound signal comprises adding 2-4 dB per octave.

6. The method of claim 1 , wherein modifying the frequency characteristic of the recorded naturally occurring sound signal comprises modifying the frequency characteristic of the recorded naturally occurring sound signal to mask a higher frequency open space noise than a random noise.

7. The method of claim 6 , wherein the random noise comprises a pink noise.

8. The method of claim 1 , wherein the recorded naturally occurring sound signal comprises a recording of a natural flow of water.

9. The method of claim 1 , further comprising varying an output level of the optimized recorded naturally occurring sound signal at a first speaker of the plurality of speakers relative to a second speaker of the plurality of speakers.

10. The method of claim 9 , wherein the output level of the optimized recorded naturally occurring sound signal at the first speaker of the plurality of speakers relative to the second speaker of the plurality of speakers is varied dependent on a relative position of the first speaker and the second speaker to the natural system.

11. The method of claim 1 , further comprising outputting from the plurality of speakers a noise masking sound comprising a pink noise.

12. The method of claim 11 , wherein the optimized recorded naturally occurring sound signal is output at a sound level to mask the pink noise.

13. The method of claim 1 , wherein the optimized recorded naturally occurring sound signal comprises sounds associated with a nature environment, the nature environment comprising a rainforest.

14. The method of claim 1 , wherein the natural system comprises a flow of water and the optimized recorded naturally occurring sound signal comprises a sound of flowing water.

15. The method of claim 1 , further comprising varying an output level of the optimized recorded naturally occurring sound signal as a function of time.

16. A system for masking open space noise comprising:
a plurality of speakers distributed in an open space arranged to output an optimized recorded naturally occurring sound signal to mask noise in the open space, wherein the optimized recorded naturally occurring sound signal is a recorded natural sound having a modified frequency characteristic to mask open space noise; and
a natural system complementing the optimized recorded naturally occurring sound signal arranged to reduce an adverse effect on a user hearing the optimized recorded naturally occurring sound signal.

17. The system of claim 16 , wherein the natural system comprises a water element system generating a sound of flowing water.

18. The system of claim 17 , wherein the water element system comprises a waterfall.

19. The system of claim 16 , wherein the modified frequency characteristic to mask open space noise comprises an increased frequency of 2-4 dB per octave.

20. The system of claim 16 , wherein the optimized recorded naturally occurring sound signal comprises a sound of flowing water and the natural system complementing the optimized recorded naturally occurring sound signal comprises a flow of water.

21. The system of claim 16 , wherein the natural system complementing the optimized recorded naturally occurring sound signal is arranged to be visible from any location within the open space.

22. A method for masking open space noise comprising:
optimizing a recorded naturally occurring sound signal to mask noise in an open space to generate an optimized recorded naturally occurring sound signal, wherein optimizing the recorded naturally occurring sound signal to mask noise in the open space comprises modifying a frequency characteristic of the recorded naturally occurring sound signal;
providing the optimized recorded naturally occurring sound signal for output from a plurality of speakers distributed in the open space; and
providing a natural system complementing the optimized recorded naturally occurring sound signal, wherein the natural system is for location within the open space.

23. The method of claim 22 , wherein the natural system comprises a water element system for generating a sound of flowing water.

24. The method of claim 22 , wherein modifying the frequency characteristic of the recorded naturally occurring sound signal comprises increasing a frequency of the recorded naturally occurring sound signal.

25. The method of claim 22 , wherein modifying the frequency characteristic of the recorded naturally occurring sound signal comprises modifying the frequency characteristic of the recorded naturally occurring sound signal to mask a higher frequency open space noise than a random noise.

Assignees

• Plantronics

Inventors

• Benway Evan Harris
• Woo Kwangsee Allen
• Nelson Dolores Frances
• Kannappan Ken

Classifications

• G10K11/1754 Primary

  Speech masking · CPC title

• H04K3/43

  characterized by the control of the jamming power, signal-to-noise ratio or geographic coverage area · CPC title

• H04K3/84

  related to preventing electromagnetic interference in petrol station, hospital, plane or cinema · CPC title

• H04K3/825

  by jamming · CPC title

• H04K3/46

  characterized in that the jamming signal is produced by retransmitting a received signal, after delay or processing · CPC title