Asymmetric stereophonic bass compensation
First Claim
Patent Images
1. An audio system for use in a confined space, the audio system comprising:
- N acoustic transducers, where N is an integer and N≥
2, wherein each acoustic transducer is configured to receive an audio signal for a respective channel of the audio system and to generate an acoustic signal therefrom,wherein each of the N acoustic transducers is operably coupled to a respective filter having a phase response, wherein the phase response of at least one of the filters is different from the phase response of at least one other of the filters at a frequency fhaving a corresponding wavelength λ
=d/(n+½
)wherein n is an integer and n≥
0 and d is a characteristic separation of two or more of the N acoustic transducers when in the confined space, in order to compensate for a reduction in acoustic power that would otherwise occur over a range of frequencies of width Δ
f around said frequency f.
0 Assignments
0 Petitions
Accused Products
Abstract
An audio system for use in a confined space comprises N acoustic transducers, where N is an integer and N≥2. Each acoustic transducer is configured to receive an audio signal for a respective channel of the audio system and to generate an acoustic signal therefrom, and is operably coupled to a respective filter having a phase response. The phase response of at least one of the filters is different from the phase response of at least one other of the filters at a frequency f having a corresponding wavelength λ=d/(n+½), where n is an integer and n≥0 and d is a characteristic separation of two or more of the N acoustic transducers when in the confined space. Compensation is thereby achieved for a reduction in acoustic power that would otherwise occur over a range of frequencies of width Δf around frequency f.
4 Citations
20 Claims
-
1. An audio system for use in a confined space, the audio system comprising:
-
N acoustic transducers, where N is an integer and N≥
2, wherein each acoustic transducer is configured to receive an audio signal for a respective channel of the audio system and to generate an acoustic signal therefrom,wherein each of the N acoustic transducers is operably coupled to a respective filter having a phase response, wherein the phase response of at least one of the filters is different from the phase response of at least one other of the filters at a frequency f having a corresponding wavelength λ
=d/(n+½
)wherein n is an integer and n≥
0 and d is a characteristic separation of two or more of the N acoustic transducers when in the confined space, in order to compensate for a reduction in acoustic power that would otherwise occur over a range of frequencies of width Δ
f around said frequency f. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A method of compensating for a reduction in acoustic power of an acoustic signal in a confined space, said acoustic signal produced by an audio system comprising N acoustic transducers, where N is an integer and N≥
- 2, wherein each acoustic transducer is configured to receive an audio signal for a respective channel of the audio system and to generate an acoustic signal therefrom, the method comprising the steps of;
filtering the audio signal to be received by at least two of the N acoustic transducers with a different phase response for each of the at least two acoustic transducers at a frequency having a corresponding wavelength λ
=d/(n+½
), wherein n is an integer and n≥
0 and d is a characteristic separation of two or more of the N acoustic transducers in the confined space, in order to compensate for a reduction in acoustic power that would otherwise occur over a range of frequencies of width Δ
f around said frequency f. - View Dependent Claims (15, 16, 17)
- 2, wherein each acoustic transducer is configured to receive an audio signal for a respective channel of the audio system and to generate an acoustic signal therefrom, the method comprising the steps of;
-
18. A non-transitory computer-readable medium storing computer-readable instructions that, when executed, cause a processor of an acoustic transducer system to perform steps of a method for reduction in acoustic power of an acoustic signal in a confined space, said acoustic signal produced by an audio system comprising N acoustic transducers, where N is an integer and N≥
- 2, wherein each acoustic transducer is configured to receive an audio signal for a respective channel of the audio system and to generate an acoustic signal therefrom, the steps comprising;
filtering the audio signal to be received by at least two of the N acoustic transducers with a different phase response for each of the at least two acoustic transducers at a frequency having a corresponding wavelength λ
=d/(n+½
), wherein n is an integer and n≥
0 and d is a characteristic separation of two or more of the N acoustic transducers in the confined space, in order to compensate for a reduction in acoustic power that would otherwise occur over a range of frequencies of width Δ
f around said frequency f. - View Dependent Claims (19, 20)
- 2, wherein each acoustic transducer is configured to receive an audio signal for a respective channel of the audio system and to generate an acoustic signal therefrom, the steps comprising;
Specification
-
- Resources
Litigation Campaign Assessment
Thank you for your request. You will receive a custom alert email when the Litigation Campaign Assessment is available.
×
-
Current AssigneeMeridian Audio Limited (Reinet Investments Manager SA)
-
Original AssigneeMeridian Audio Limited (Reinet Investments Manager SA)
-
InventorsHollinshead, Richard, Kapp, Michael, Wood, Alan
-
Primary Examiner(s)Mooney, James K
-
Application NumberUS15/735,387Publication NumberTime in Patent Office1,091 DaysField of SearchNoneUS Class CurrentCPC Class CodesH04R 1/26 Spatial arrangements of sep...H04R 2499/13 Acoustic transducers and so...H04R 3/04 for correcting frequency re...H04R 3/12 for distributing signals to...H04S 2400/09 Electronic reduction of dis...H04S 3/002 Non-adaptive circuits, e.g....
