Abstract

An apparatus for re-recording an existing audio piece with a first number of channels includes: a loudspeaker arrangement for reproducing the first number of channels with a first number of loudspeaker systems in a reproduction space, wherein the first number is 1 or larger than 1, and wherein the one loudspeaker system or the loudspeaker systems of the first number of loudspeaker systems is/are configured to generate, for each channel of the first number of channels, a translation sound field and a rotation sound field in the reproduction space; a microphone arrangement with a second number of microphone systems arranged at different microphone positions in the reproduction space, wherein each microphone system of the second number of microphone systems is configured to capture a pressure signal and additionally a directional differential signal; and a recording or output interface.

IPC Classes  ?

• H04S 3/00 - Systems employing more than two channels, e.g. quadraphonic
• G06F 3/16 - Sound input; Sound output
• G11B 27/036 - Insert-editing
• H04R 3/00 - Circuits for transducers
• H04R 5/02 - Spatial or constructional arrangements of loudspeakers
• H04R 5/027 - Spatial or constructional arrangements of microphones, e.g. in dummy heads
• H04S 7/00 - Indicating arrangements; Control arrangements, e.g. balance control

Abstract

A loudspeaker system including a tweeter; two midrange speakers or woofers that can be controlled separately and that each comprise a membrane of essentially equal size; and a loudspeaker system housing, wherein the tweeter and the two midrange speakers or woofers are arranged in the loudspeaker system housing, and the tweeter is arranged between the two midrange speakers or woofers.

IPC Classes  ?

• H04R 1/24 - Structural combinations of separate transducers or of parts of the same transducer and responsive respectively to two or more frequency ranges
• H04R 1/02 - Casings; Cabinets; Mountings therein
• H04R 3/14 - Cross-over networks
• H04R 5/02 - Spatial or constructional arrangements of loudspeakers
• H04R 5/04 - Circuit arrangements

Abstract

An apparatus for generating control signals for a loudspeaker system with two sound generators including a first input for a first channel signal of a multi-channel audio signal; a second input for a second channel signal of the multi-channel audio signal; a first output for a first control signal for a first sound generator; a second output for a second control signal for a second sound generator; a base differential mode signal generator for forming a base differential mode signal from the first channel signal and the second channel signal at the second input; a differential mode signal generator for generating a first differential mode signal and a second differential mode signal from the base differential mode signal, wherein the first differential mode signal is phase-shifted with respect to the second differential mode signal; and a mixer for mixing a common mode signal with the first differential mode signal.

IPC Classes  ?

• H04S 7/00 - Indicating arrangements; Control arrangements, e.g. balance control
• H04R 5/02 - Spatial or constructional arrangements of loudspeakers
• H04R 5/04 - Circuit arrangements
• H04S 3/00 - Systems employing more than two channels, e.g. quadraphonic

Abstract

Apparatus for supplying sound with first and second loudspeakers including: a control signal generator for generating a first control signal for the first loudspeaker and a second control signal for the second loudspeaker. The control signal generator includes: a mix signal generator stage generating a first mix signal for the first control signal and a second mix signal for the second control signal from a first channel signal or a second channel signal such that the first mix signal and the second mix signal have a phase difference; a mixer stage for mixing the first channel signal with the first mix signal to obtain the first control signal, and for mixing the second channel signal with the second mix signal to obtain the second control signal; and an interface for transmitting the first control signal to the first loudspeaker and for transmitting the second control signal to the second loudspeaker.

IPC Classes  ?

• H04S 7/00 - Indicating arrangements; Control arrangements, e.g. balance control
• H04R 5/04 - Circuit arrangements

Abstract

Apparatus for generating a control signal for a sound generator including a push-pull signal generator for generating a push-pull signal from a first channel signal and a second channel signal of a of a multi-channel audio signal; a controllable amplifier for amplifying or attenuating the push-pull signal with an adjustable amplification or attenuation according to an adjustment value, wherein the apparatus is configured to identify the control signal from an output signal of the controllable amplifier; and a controller for determining the adjustment value, wherein the controller is configured to determine a first adjustment value in case of a first similarity between the first channel signal and the second channel signal, and to determine a second adjustment value in case of a second similarity between the first channel signal and the second channel signal, wherein the first similarity represents a lower similarity than the second similarity.

IPC Classes  ?

• H04S 7/00 - Indicating arrangements; Control arrangements, e.g. balance control
• H03F 3/26 - Push-pull amplifiers; Phase-splitters therefor
• H04S 1/00 - Two-channel systems

Abstract

An apparatus for generating a first control signal for a first transducer and a second control signal for a second transducer, including: an input interface providing a first audio signal for a first audio channel and a second audio signal for a second audio channel; a signal combiner for determining from the first audio signal and the second audio signal a combination signal including an approximate difference of the first audio signal and the second audio signal; a signal manipulator for manipulating the combination signal to obtain the second control signal; and an output interface for outputting or storing the first control signal based on the first audio signal, or the second control signal, wherein the signal manipulator is configured to delay the combination signal or to amplify or attenuate the combination signal in a frequency-selective manner to counteract a non-linear transducer characteristic over the frequency of the second transducer.

IPC Classes  ?

• H04R 1/22 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
• H04S 7/00 - Indicating arrangements; Control arrangements, e.g. balance control
• H04R 1/28 - Transducer mountings or enclosures designed for specific frequency response; Transducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means

Abstract

A loudspeaker includes a first sound generator with a first emission direction, and a second sound generator with a second emission direction, wherein the first sound generator and the second sound generator are arranged with respect to each other such that the first emission direction and the second emission direction intersect in a sound chamber and comprise an intersection angle that is larger than 60° and smaller than 120°; and a housing that accommodates the first sound generator and the second sound generator and the sound chamber, wherein the housing comprises a gap configured to enable gas communication between the sound chamber and the surrounding area of the loudspeaker.

IPC Classes  ?

• H04R 3/12 - Circuits for transducers for distributing signals to two or more loudspeakers
• H04R 1/02 - Casings; Cabinets; Mountings therein
• H04R 1/40 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
• H04S 7/00 - Indicating arrangements; Control arrangements, e.g. balance control
• H04R 1/28 - Transducer mountings or enclosures designed for specific frequency response; Transducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
• H04R 5/02 - Spatial or constructional arrangements of loudspeakers
• H04S 3/00 - Systems employing more than two channels, e.g. quadraphonic

Abstract

A loudspeaker system includes: a first sound generator with a first emission direction, and a second sound generator with a second emission direction, wherein the first sound generator and the second sound generator are arranged with respect to each other such that the first emission direction and the second emission direction intersect in a sound chamber; a third sound generator with a third emission direction, and a fourth sound generator with a fourth emission direction, wherein the third sound generator and the fourth sound generator are arranged such that the third emission direction and the fourth emission direction intersect in the sound chamber; and a housing that accommodates the first sound generator and the second sound generator, the third sound generator and the fourth sound generator, and the sound chamber, wherein the housing has a gap configured to enable gas communication between the sound chamber and a surrounding area.

IPC Classes  ?

• H04R 1/32 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only

Abstract

A loudspeaker system includes a transducer configured to transduce an electrical signal into sound waves, and having a clamped diaphragm configured to be deflected by the electrical signal, wherein the diaphragm has a deflection region which is deflectable in relation to a resting position of the diaphragm, and a clamping region which is less deflectable, or non-deflectable, in relation to the deflection region, a housing within which the transducer is arranged, the housing having perforations to allow the sound wave to exit to an external environment, wherein the perforations are arranged on the housing predominantly to be closer to the clamping region than to the deflection region.

IPC Classes  ?

• H04R 7/04 - Plane diaphragms

Abstract

Sound generator wearable on the head, comprising: a first sound generator element on a first side; and a second sound generator element on a second side, wherein at least a first sound transducer and a second sound transducer are arranged in the first sound generator element such that sound emission directions of the first sound transducer and the second sound transducer are parallel or deviate by less than 30° from a parallel emission direction, and wherein a third sound transducer and a fourth sound transducer are arranged in the second sound generator element such that sound emission directions of the third sound transducer and the fourth sound transducer are parallel to one another or deviate by less than 30° from a parallel emission direction.

IPC Classes  ?

• H04R 1/10 - Earpieces; Attachments therefor
• H04R 1/40 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
• H04R 5/033 - Headphones for stereophonic communication
• H04R 3/12 - Circuits for transducers for distributing signals to two or more loudspeakers

Abstract

Microphone having: a first partial microphone with a first diaphragm pair having a first diaphragm and a second diaphragm that are arranged opposite each other; and a second partial microphone with a second diaphragm pair having a third diaphragm and a fourth diaphragm that are arranged opposite each other, wherein the first diaphragm pair is arranged such that the first diaphragm and the second diaphragm are deflectable along a first spatial axis, wherein the second diaphragm pair is arranged such that the third diaphragm and the fourth diaphragm are deflectable along a second spatial axis and wherein the second spatial axis differs from the first spatial axis.

IPC Classes  ?

• H04R 7/02 - Diaphragms for electromechanical transducers; Cones characterised by the construction
• H04R 1/08 - Mouthpieces; Attachments therefor

Abstract

A loudspeaker includes two diaphragms arranged opposite each other, a drive unit for deflecting the two diaphragms in response to a control signal, the drive unit being coupled to the two diaphragms such that a first one of the two diaphragms is deflected in a first direction, and a second one of the two diaphragms is deflected in a second direction equal to the first direction.

IPC Classes  ?

• H04R 1/34 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
• H04R 7/12 - Non-planar diaphragms or cones
• H04R 9/02 - Transducers of moving-coil, moving-strip, or moving-wire type - Details
• H04R 7/18 - Mounting or tensioning of diaphragms or cones at the periphery
• H04R 9/04 - Construction, mounting, or centering of coil
• H04R 9/06 - Loudspeakers

Abstract

The invention relates to a device for rerecording an existing audio sample having a first number of channels (111, 112), the device comprising: a loudspeaker arrangement for playing back the first number of channels using a first number of loudspeaker systems (201, 202, 203) in a playback chamber (110), wherein the first number is equal to 1 or greater than 1, and wherein the one loudspeaker system (203) or the loudspeaker systems (201, 202, 203) of the first number of loudspeaker systems are designed to generate both a translational sound field and a rotational sound field in the playback chamber (110) for each channel (111, 112, 113) of the first number of channels; a microphone arrangement having a second number of microphone systems (221-231) which are arranged at different microphone positions in the playback chamber (110), wherein each microphone system of the second number of microphone systems (221-231) is designed to detect a pressure signal (OD) and also a directed differential signal (D); and an interface (150) for outputting or recording the pressure signal and the directed differential signal or a differential signal derived from the directed differential signal, as a rerecorded audio sample (240).

IPC Classes  ?

• H04R 5/02 - Spatial or constructional arrangements of loudspeakers
• H04R 5/027 - Spatial or constructional arrangements of microphones, e.g. in dummy heads

Abstract

Loudspeaker system having the following features: one tweeter (130, 230); two mid-range drivers or woofers (110, 210, 120, 220) which can be controlled separately and have a diaphragm of substantially the same size; and a loudspeaker system housing, wherein the tweeter and the two mid-range drivers or woofers are disposed in the loudspeaker system housing, and the tweeter is arranged between the two mid-range drivers or woofers.

IPC Classes  ?

• H04R 1/24 - Structural combinations of separate transducers or of parts of the same transducer and responsive respectively to two or more frequency ranges
• H04R 3/14 - Cross-over networks
• H04R 5/04 - Circuit arrangements
• H04R 1/02 - Casings; Cabinets; Mountings therein
• H04R 5/02 - Spatial or constructional arrangements of loudspeakers
• H04R 27/00 - Public address systems

Abstract

The invention relates to a device for generating control signals for a loudspeaker system having two sound generators, the device having the following features: a first input (501a) for a first channel signal of a multi-channel audio signal; a second input (501b) for a second channel signal of the multi-channel audio signal; a first output (502a) for a first control signal for a first sound generator; a second output (502b) for a second control signal for a second sound generator; a basic differential-mode signal generator (510) for forming a basic differential-mode signal from the first channel signal at the first input (501a) and from the second channel signal at the second input (501b); a differential-mode signal generator (530) for generating a first differential-mode signal and a second differential-mode signal from the basic differential-mode signal, wherein the first differential-mode signal is phase-shifted with respect to the second differential-mode signal using spectral interleaving in the low frequency range; and a mixer (540) for mixing a common-mode signal with the first differential-mode signal in order to obtain the first control signal and for mixing the common-mode signal with the second differential-mode signal in order to obtain the second control signal.

IPC Classes  ?

• H04R 5/04 - Circuit arrangements
• H04R 1/02 - Casings; Cabinets; Mountings therein
• H04R 1/24 - Structural combinations of separate transducers or of parts of the same transducer and responsive respectively to two or more frequency ranges
• H04R 3/14 - Cross-over networks
• H04R 5/02 - Spatial or constructional arrangements of loudspeakers
• H04R 27/00 - Public address systems

Abstract

An apparatus for providing audio coverage in a room. An apparatus for providing audio coverage in a room comprises a first loudspeaker and a second loudspeaker, having the following features: a drive signal generator (10) for generating a first drive signal (15a) for the first loudspeaker and a second drive signal (15b) for the second loudspeaker, wherein the drive signal generator (10) has the following features: a mixed signal generator stage (12) for generating a first mixed signal (13a) for the first drive signal (15a) and a second mixed signal (13b) for the second drive signal (15b) from a first channel signal (6) or a second channel signal (8), in such a way that the first mixed signal (13a) and the second mixed signal (13b) have a phase difference; a mixer stage (14) for mixing the first channel signal (6) with the first mixed signal (13a), in order to obtain the first drive signal (15a), and for mixing the second channel signal (8) with the second mixed signal (13b), in order to obtain the second drive signal (15b); and an interface (16) for transmitting the first drive signal (15a) to the first loudspeaker and for transmitting the second drive signal (15b) to the second loudspeaker.

IPC Classes  ?

• H04R 5/04 - Circuit arrangements
• H04R 5/02 - Spatial or constructional arrangements of loudspeakers
• H04R 27/00 - Public address systems
• H04S 7/00 - Indicating arrangements; Control arrangements, e.g. balance control

Abstract

The invention relates to an apparatus for generating a control signal for a sound generator, comprising the following features: a push-pull signal generator (1010, 80) for generating a push-pull signal (1011) from a first channel signal (1001, 71, 306) and a second channel signal (1002, 308) of a multi-channel audio signal; a controllable amplifier (1020) for amplifying or attenuating the push-pull signal (1011) using an adjustable amplification or attenuation according to an adjustment value, wherein the apparatus is designed to determine the control signal from an output signal (1036, 72) of the controllable amplifier (1030); and a controller (1020) for determining the adjustment value, wherein the controller (1020) is designed to determine a first adjustment value when there is a first similarity between the first channel signal and the second channel signal and to determine a second adjustment value when there is a second similarity between the first channel signal and the second channel signal, wherein the first similarity represents a lower similarity than the second similarity, and wherein the first adjustment value represents a smaller amplification than the second adjustment value or a larger attenuation than the second adjustment value.

IPC Classes  ?

• H04R 3/12 - Circuits for transducers for distributing signals to two or more loudspeakers
• H04R 3/00 - Circuits for transducers
• H04S 3/00 - Systems employing more than two channels, e.g. quadraphonic
• H04R 3/02 - Circuits for transducers for preventing acoustic reaction

Abstract

The invention relates to a device for generating a first control signal (411) for a first transducer (521) and a second control signal (412) for a second transducer (522a, 522b), comprising the following features: an input interface (100) for delivering a first audio signal (111) for a first audio channel and a second audio signal for a second audio channel; a signal combiner (200) for determining a combination signal (211) from the first audio signal (111) and the second audio signal (112), which combination signal comprises an approximate difference between the first audio signal (111) and the second audio signal (112); a signal manipulator (300) for manipulating the combination signal in order to obtain the second control signal (412); and an output interface (400) for outputting or storing the first control signal (411) which is based on the first audio signal (111) or for outputting or storing the second control signal (412); wherein the signal manipulator (300) is designed to delay (302) the combination signal (211) or to amplify or attenuate (303) the combination signal (211) according to the frequency in order to counteract non-linear transducer characteristics above the frequency of the second transducer (522a, 522b), or wherein the device is designed to convert at least a portion of a spectrum of the first audio signal or of the combination signal into a frequency range above 20 kHz in order to obtain the first control signal (411) which has the frequency range above 20 kHz.

IPC Classes  ?

• H04R 3/12 - Circuits for transducers for distributing signals to two or more loudspeakers
• H04R 3/04 - Circuits for transducers for correcting frequency response
• H04R 5/04 - Circuit arrangements
• H04R 5/02 - Spatial or constructional arrangements of loudspeakers
• H04S 5/00 - Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation
• H04S 3/02 - Systems employing more than two channels, e.g. quadraphonic of the matrix type, i.e. in which input signals are combined algebraically, e.g. after having been phase shifted with respect to each other

Abstract

A loudspeaker system comprises: a first sound generator (11) having a first emission direction (21) and a second sound generator (12) having a second emission direction (22), the first sound generator (11) and the second sound generator (12) being arranged in relation to one another such that the first emission direction (21) and the second emission direction (22) intersect in an acoustic chamber (10); a third sound generator (13) having a third emission direction (23) and a fourth sound generator (15) having a fourth emission direction (25), the third sound generator (13) and the fourth sound generator (15) being arranged in relation to one another such that the third emission direction (23) and the fourth emission direction (25) intersect in the acoustic chamber (10); and a cabinet (14) that houses the first sound generator (11) and the second sound generator (12), the third sound generator (13) and the fourth sound generator (15) and the acoustic chamber (10), the cabinet (14) having a gap (16) that is designed to allow gas communication between the acoustic chamber (10) and surroundings of the loudspeaker system.

IPC Classes  ?

• H04R 1/40 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
• H04R 9/06 - Loudspeakers
• H04R 27/00 - Public address systems

Abstract

A loudspeaker comprises a first sound generator (11) having a first direction of emission (21) and a second sound generator (12) having a second direction of emission (22), wherein the first sound generator (11) and the second sound generator (12) are arranged in relation to one another such that the first direction of emission (21) and the second direction of emission (22) intersect in a sound chamber and have an angle of intersection that is greater than 60° and less than 120°; and a cabinet (14a, 14b, 14c, 14d, 14e) that houses the first sound generator (11) and the second sound generator (12) and the sound chamber, wherein the cabinet has a gap (16) that is designed to allow gas communication between the sound chamber and an environment of the loudspeaker.

IPC Classes  ?

• H04R 1/22 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
• H04R 1/28 - Transducer mountings or enclosures designed for specific frequency response; Transducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
• H04R 1/40 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
• H04R 3/12 - Circuits for transducers for distributing signals to two or more loudspeakers

Abstract

A loudspeaker system (10) comprises: - a transducer (20), which is designed to convert an electrical signal into sound waves and which has a clamped diaphragm (30), which diaphragm is designed to be deflected by means of the electrical signal, wherein the diaphragm (30) has a deflection region (32), which is deflectable in relation to a rest position (34) of the diaphragm (30), and a clamping region (36), which is less deflectable or not deflectable in relation to the deflection region (32); - a housing (40), in which the transducer (20) is disposed, the housing (40) having perforations (50) so that the sound wave can exit into the outer surroundings, the perforations (50) being located on the housing (40) such that they are predominantly closer to the clamping region (36) than to the deflection region (32).

IPC Classes  ?

• H04R 1/02 - Casings; Cabinets; Mountings therein
• H04R 19/02 - Loudspeakers
• H04R 7/04 - Plane diaphragms
• H04R 1/28 - Transducer mountings or enclosures designed for specific frequency response; Transducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means

Abstract

Described is a loudspeaker (10) comprising two diaphragms (20), which are arranged opposing one another, a drive unit (30) for deflecting the two diaphragms (20) in response to a control signal, wherein the drive unit (30) is coupled with the two diaphragms (20) in such a manner that a first of the two diaphragms (20) is deflected in a first direction and a second of the two diaphragms (20) is deflected in a second direction, which is the same as the first direction.

IPC Classes  ?

• H04R 7/08 - Plane diaphragms comprising a plurality of sections or layers comprising superposed layers separated by air or other fluid
• H04R 9/06 - Loudspeakers
• H04R 7/04 - Plane diaphragms
• H04R 1/32 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only

Abstract

The invention relates to a sound generator that can be worn on the head, comprising the following features: a first sound generator element (100) on a first side; and a second sound generator element (200) on a second side; wherein at least one first sound transducer (110) and one second sound transducer (120) are arranged in the first sound generator element such that sound emission directions of the first sound transducer and the second sound transducer are parallel or deviate by less than 30° from a parallel emission direction; and wherein a third sound transducer (210) and a fourth sound transducer (220) are arranged in the second sound generator element (200) such that the sound emission directions of the third sound transducer (210) and the fourth sound transducer (220) are mutually parallel or deviate by less than 30° from a parallel emission direction.

IPC Classes  ?

• H04R 1/10 - Earpieces; Attachments therefor
• H04R 5/02 - Spatial or constructional arrangements of loudspeakers
• H04R 5/033 - Headphones for stereophonic communication
• H04S 3/00 - Systems employing more than two channels, e.g. quadraphonic
• H04R 1/28 - Transducer mountings or enclosures designed for specific frequency response; Transducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
• H04R 1/40 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers

Abstract

The invention relates to a microphone having the following features: a first sub-microphone (1) having a first membrane pair that comprises a first membrane (11) and a second membrane (12) which are arranged so as to be mutually opposite; a second sub-microphone (2) having a second membrane pair that comprises a third membrane (13) and a fourth membrane (14) which are arranged so as to be mutually opposite, wherein the first membrane pair is arranged such that the first membrane (11) and the second membrane (12) can be deflected along a first spatial axis, wherein the second membrane pair is arranged such that the third membrane (13) and the fourth membrane (14) can be deflected along a second spatial axis, and wherein the second spatial axis is different from the first spatial axis.

IPC Classes  ?

• H04R 1/08 - Mouthpieces; Attachments therefor
• H04R 1/40 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers

Abstract

The invention relates to a device (1) for controlling a sound generator (50, 60) comprising a first transducer (51) and a second transducer (52) for a left-hand side of the sound generator and a third transducer (63) and a fourth transducer for a right-hand side of the sound generator, the device having the following features: an interface (10) for receiving a first electrical signal (11) for the left-hand side and a second electrical signal (12) for the right-hand side; and a signal processor for outputting a first output signal for the first transducer on the basis of the first electrical signal and for outputting a third output signal (23) for the third transducer (63) on the basis of the second electrical signal (12), and for calculating a first at least approximate difference from the first electrical signal and the second electrical signal and a second at least approximate difference from the first electrical signal and the second electrical signal (12), the second at least approximate difference being different from the first at least approximate difference, and for outputting a second output signal (22) for the second transducer (52) on the basis of the first at least approximate difference and for outputting a fourth output signal (24) for the fourth transducer (62), which fourth output signal is based on the second at least approximate difference.

IPC Classes  ?

• H04R 5/033 - Headphones for stereophonic communication
• H04R 3/12 - Circuits for transducers for distributing signals to two or more loudspeakers
• H04S 1/00 - Two-channel systems
• H04S 3/00 - Systems employing more than two channels, e.g. quadraphonic

Abstract

The method of capturing an audio scene includes acquiring sounds having first and second directivities to obtain first and second acquisition signals, respectively, the first directivity being higher than the second directivity, the steps of acquiring being performed simultaneously, and both acquisition signals together representing the audio scene; separately storing the first and second acquisition signals or mixing individual channels in the acquisition signals to obtain first and second mixed signal, respectively, and separately storing the first and second mixed signals, or transmitting the first and second mixed signals or the first and second acquisition signals to a loudspeaker setup and rendering the first mixed signal or the first acquisition signal using a loudspeaker arrangement having a first directivity and simultaneously rendering the second mixed signal or the second acquisition signal using a loudspeaker arrangement having a second directivity, the second loudspeaker directivity being lower than the first one.

IPC Classes  ?

• H04R 1/02 - Casings; Cabinets; Mountings therein
• H04R 1/24 - Structural combinations of separate transducers or of parts of the same transducer and responsive respectively to two or more frequency ranges
• H04R 19/01 - Electrostatic transducers characterised by the use of electrets
• H04R 5/02 - Spatial or constructional arrangements of loudspeakers
• H04S 7/00 - Indicating arrangements; Control arrangements, e.g. balance control

Abstract

The method of capturing an audio scene includes acquiring sounds having first and second directivities to obtain first and second acquisition signals, respectively, the first directivity being higher than the second directivity, the steps of acquiring being performed simultaneously, and both acquisition signals together representing the audio scene; separately storing the first and second acquisition signals or mixing individual channels in the acquisition signals to obtain first and second mixed signal, respectively, and separately storing the first and second mixed signals, or transmitting the first and second mixed signals or the first and second acquisition signals to a loudspeaker setup and rendering the first mixed signal or the first acquisition signal using a loudspeaker arrangement having a first directivity and simultaneously rendering the second mixed signal or the second acquisition signal using a loudspeaker arrangement having a second directivity, the second loudspeaker directivity being lower than the first one.

IPC Classes  ?

• H04R 1/02 - Casings; Cabinets; Mountings therein
• H04R 19/01 - Electrostatic transducers characterised by the use of electrets
• H04R 5/02 - Spatial or constructional arrangements of loudspeakers
• H04S 7/00 - Indicating arrangements; Control arrangements, e.g. balance control
• H04R 1/24 - Structural combinations of separate transducers or of parts of the same transducer and responsive respectively to two or more frequency ranges

Abstract

Headphones include a left loudspeaker element; a right loudspeaker element; and a holder for holding the left loudspeaker element and the right loudspeaker element, such that the loudspeaker elements can be attached to the ears, wherein the left loudspeaker element or the right loudspeaker element includes: a first sound converter; a second sound converter, wherein the first sound converter is implemented such that the first sound converter provides directed emission in the direction of an ear in the operating position of the headphones, and the second sound converter is implemented such that the second sound converter provides no or less directed emission than the first sound converter in the direction of the ear in the operating position of the headphones.

IPC Classes  ?

• H04R 5/033 - Headphones for stereophonic communication
• H04R 1/10 - Earpieces; Attachments therefor
• H04R 1/32 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
• H04R 5/02 - Spatial or constructional arrangements of loudspeakers
• H04S 3/00 - Systems employing more than two channels, e.g. quadraphonic
• H04R 7/04 - Plane diaphragms
• H04R 7/22 - Clamping rim of diaphragm or cone against seating

Abstract

An earphone has a membrane mounted on a membrane carrier and arranged between a top space and a bottom space; a membrane actuator implemented to deflect the membrane in dependence on a control signal; a housing where the membrane carrier, the membrane and the membrane actuator are arranged, wherein the housing has a sound exit, wherein the membrane carrier has openings, and wherein the membrane has holes, and wherein the openings and the holes connect the top space and the bottom space to each another, such that gas can move through the openings and holes between the top space and the bottom space.

IPC Classes  ?

• H04R 1/08 - Mouthpieces; Attachments therefor
• H04R 9/08 - Microphones
• H04R 11/04 - Microphones
• H04R 17/02 - Microphones
• H04R 7/14 - Non-planar diaphragms or cones corrugated, pleated, or ribbed
• H04R 1/10 - Earpieces; Attachments therefor
• H04R 5/033 - Headphones for stereophonic communication
• H04R 7/04 - Plane diaphragms
• H04R 7/18 - Mounting or tensioning of diaphragms or cones at the periphery
• H04R 9/06 - Loudspeakers
• H04R 5/02 - Spatial or constructional arrangements of loudspeakers

Abstract

Headphones include a left loudspeaker element; a right loudspeaker element; and a holder for holding the left loudspeaker element and the right loudspeaker element, such that the loudspeaker elements can be attached to the ears, wherein the left loudspeaker element or the right loudspeaker element includes: a first sound converter; a second sound converter, wherein the first sound converter is implemented such that the first sound converter provides directed emission in the direction of an ear in the operating position of the headphones, and the second sound converter is implemented such that the second sound converter provides no or less directed emission than the first sound converter in the direction of the ear in the operating position of the headphones.

IPC Classes  ?

• H04R 5/033 - Headphones for stereophonic communication
• H04R 1/10 - Earpieces; Attachments therefor
• H04R 1/32 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only

Abstract

Headphones include a left loudspeaker element (3); a right loudspeaker element (4); and a holder (2) for holding the left loudspeaker element and the right loudspeaker element, such that the loudspeaker elements can be attached to the ears (12), wherein the left loudspeaker element (3) or the right loudspeaker element (4) comprises: a first sound converter (3a); a second sound converter (3b), wherein the first sound converter (3a) is implemented such that the first sound converter provides directed emission in the direction of an ear in the operating position of the headphones, and the second sound converter (3b) is implemented such that the second sound converter provides no or less directed emission than the first sound converter in the direction of the ear (12) in the operating position of the headphones.

IPC Classes  ?

• H04R 5/033 - Headphones for stereophonic communication
• H04S 3/00 - Systems employing more than two channels, e.g. quadraphonic
• H04R 5/02 - Spatial or constructional arrangements of loudspeakers
• H04R 1/32 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
• H04R 1/10 - Earpieces; Attachments therefor
• H04R 7/04 - Plane diaphragms
• H04R 7/22 - Clamping rim of diaphragm or cone against seating

Abstract

An earphone comprises a membrane (10) mounted on a membrane carrier (12) and arranged between a top space (14) and a bottom space (16); a membrane actuator (18) implemented to deflect the membrane (10) in dependence on a control signal; a housing (20) where the membrane carrier (12), the membrane (10) and the membrane actuator (18) are arranged, wherein the housing comprises a sound exit (22), wherein the membrane carrier (12) comprises openings (26a, 26b, 26c), and wherein the membrane (10) comprises holes (28a, 28b, 28c), and wherein the openings (26a, 26b, 26c) and the holes (28a, 28b, 28c) connect the top space (14) and the bottom space (16) to each another, such that gas can move through the openings and holes between the top space and the bottom space.

IPC Classes  ?

• H04R 1/10 - Earpieces; Attachments therefor
• H04R 5/033 - Headphones for stereophonic communication
• H04R 7/18 - Mounting or tensioning of diaphragms or cones at the periphery
• H04R 7/04 - Plane diaphragms
• H04R 5/02 - Spatial or constructional arrangements of loudspeakers

Abstract

A loudspeaker includes a longitudinal enclosure having at least one subwoofer speaker for emitting lower sound frequencies; a carrier portion on top of the longitudinal enclosure; and a speaker arrangement having individual speakers for emitting higher sound frequencies arranged in a different direction with respect to the longitudinal enclosure, wherein the speaker arrangement is fixed to the carrier portion and is not surrounded by the longitudinal enclosure.

IPC Classes  ?

• H04R 1/02 - Casings; Cabinets; Mountings therein
• H04S 7/00 - Indicating arrangements; Control arrangements, e.g. balance control
• H04R 5/02 - Spatial or constructional arrangements of loudspeakers
• H04R 19/01 - Electrostatic transducers characterised by the use of electrets
• H04R 1/24 - Structural combinations of separate transducers or of parts of the same transducer and responsive respectively to two or more frequency ranges

Abstract

The method of capturing an audio scene includes acquiring sounds having first and second directivities to obtain first and second acquisition signals, respectively, the first directivity being higher than the second directivity, the steps of acquiring being performed simultaneously, and both acquisition signals together representing the audio scene; separately storing the first and second acquisition signals or mixing individual channels in the acquisition signals to obtain first and second mixed signal, respectively, and separately storing the first and second mixed signals, or transmitting the first and second mixed signals or the first and second acquisition signals to a loudspeaker setup and rendering the first mixed signal or the first acquisition signal using a loudspeaker arrangement having a first directivity and simultaneously rendering the second mixed signal or the second acquisition signal using a loudspeaker arrangement having a second directivity, the second loudspeaker directivity being lower than the first one.

IPC Classes  ?

• H04R 1/02 - Casings; Cabinets; Mountings therein
• H04R 1/24 - Structural combinations of separate transducers or of parts of the same transducer and responsive respectively to two or more frequency ranges
• H04R 19/01 - Electrostatic transducers characterised by the use of electrets
• H04R 5/02 - Spatial or constructional arrangements of loudspeakers
• H04S 7/00 - Indicating arrangements; Control arrangements, e.g. balance control

Abstract

Method of capturing an audio scene, comprises acquiring (200) sound having a first directivity to obtain a first acquisition signal; acquiring (202) sound having a second directivity to obtain a second acquisition signal, wherein the first directivity is higher than the second directivity, wherein the steps of acquiring (200, 202) are performed simultaneously, and wherein both acquisition signals together represent the audio scene; separately storing (204) the first and the second acquisition signals or mixing (206) individual channels in the first acquisition signal to obtain a first mixed signal, mixing individual channels in the second acquisition signal to obtain a second mixed signal and separately storing the first and the second mixed signal, or transmitting (208) the first and the second mixed signals or the first and the second acquisition signals to a loudspeaker setup and rendering (210) the first mixed signal or the first acquisition signal using a loudspeaker arrangement (118) having a first directivity and simultaneously rendering (212) the second mixed signal or the second acquisition signal using a loudspeaker arrangement (120) having a second directivity, wherein the second loudspeaker directivity is lower than the first loudspeaker directivity.

IPC Classes  ?

• H04S 7/00 - Indicating arrangements; Control arrangements, e.g. balance control

Abstract

A microphone comprises a first electret microphone portion (801) having a first free space (813) and a second electret microphone portion (802) having a second free space (823), wherein the first and second electret microphone portions (801, 802) are arranged in a back-to-back arrangement, wherein a vent channel (804) is provided for venting the first free space (813) or the second free space (823), and wherein first contacts (806a, 806b) for deriving a first electrical signal are arranged at the first microphone portion (810), and wherein second contacts (808a, 806b) are arranged at the second microphone portion (802) for deriving a second electrical signal.

IPC Classes  ?

• H04R 19/01 - Electrostatic transducers characterised by the use of electrets
• H04R 31/00 - Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
• H04R 3/00 - Circuits for transducers

Abstract

A loudspeaker comprises a longitudinal enclosure (300) comprising at least one subwoofer speaker (310) for emitting lower sound frequencies; a carrier portion (312) on top of the longitudinal enclosure (300); and a speaker arrangement (314) comprising individual speakers for emitting higher sound frequencies arranged in a different direction with respect to the longitudinal enclosure (300), wherein the speaker arrangement (314) is fixed to the carrier portion (312) and is not surrounded by the longitudinal enclosure (300).

IPC Classes  ?

• H04R 1/02 - Casings; Cabinets; Mountings therein