Abstract:
There is provided an acoustic element for placement in a sound path of a loudspeaker device, the acoustic element comprising a container and an acoustic volume increasing material located in the container. In an embodiment, the container comprises wall portions with different physical characteristics. In other embodiments, the walls of the container are made of the same material.
Abstract:
A speaker including a single coil for both normal voice and for creating an HAC field. A large coil may be provided in combination with a strong magnet. The components of the speaker may be designed so as to maximize the space available for the voice coil and for the magnet.
Abstract:
There is provided an acoustic element for placement in a sound path of a loudspeaker device, the acoustic element comprising a container and an acoustic volume increasing material located in the container. In an embodiment, the container comprises wall portions with different physical characteristics. In other embodiments, the walls of the container are made of the same material.
Abstract:
A loudspeaker device is presented which includes a zeolite material comprising zeolite particles having a silicon to aluminum mass ratio of at least 200. For an increased pore fraction of pores with a diameter in a range between 0.7 micrometer and 30 micrometer shows an increased shift of the resonance frequency down to lower frequencies has been observed.
Abstract:
A loudspeaker device is presented which includes a zeolite material comprising zeolite particles having a silicon to aluminum mass ratio of at least 200. For an increased pore fraction of pores with a diameter in a range between 0.7 micrometer and 30 micrometer shows an increased shift of the resonance frequency down to lower frequencies has been observed.
Abstract:
An audio system comprises an electro-acoustic transducer (1) with transducer connections (12, 13) to receive an audio signal (AS) in the audio frequency range from a driver circuit (14) and measure means (11) to measure the excursion of a diaphragm (3) of the electro-acoustic transducer (1), wherein a sensor signal source (16) provides a sensor signal (SS) at the transducer connections (12, 13) with a sensor frequency beyond the audio frequency range and in the range of the resonance frequency of the electro-acoustic transducer and, wherein the measure means (11) comprise a sensor circuit (18) to sense changes of the impedance of the electro-acoustic transducer (1) for the sensor signal (SS) at the transducer connections (12, 13) caused by the excursion of the diaphragm (3) due to the audio signal (AS).
Abstract:
An electroacoustic transducer assembly may comprise one or more magnets, one or more magnetic flux conductors, and an acoustic membraneplate. The membraneplate, magnets, and flux conductors may be arranged so that a magnet or flux conductor is above the membraneplate and a magnet or flux conductor is below the membraneplate. The magnets and flux conductors may be arranged and polarized such that magnetic flux propagates in a continuous rotary path around the membraneplate.
Abstract:
The present invention discloses a magnet assembly for a speaker, the assembly comprising: a magnet conductive base plate; an inner magnet and at least one outer magnet, the inner magnet and the at least one outer magnet being arranged on the magnet conductive base plate side by side and being spaced to each other by a space; and an inner magnet conductive plate and at least one outer magnet conductive plate arranged on the inner magnet and at least one outer magnet respectively, wherein the magnet conductive plate is provided with at least one outer magnet stopper which abuts against the outer magnet to limit the displacement of the at least one outer magnet in at least one direction. The present invention also discloses a speaker comprising the magnet assembly.
Abstract:
A loudspeaker device is presented which includes a zeolite material comprising zeolite particles having a silicon to aluminum mass ratio of at least 200. For an increased pore fraction of pores with a diameter in a range between 0.7 micrometer and 30 micrometer shows an increased shift of the resonance frequency down to lower frequencies has been observed.
Abstract:
There is provided an acoustic element for placement in a sound path of a loudspeaker device, the acoustic element comprising a container and an acoustic volume increasing material located in the container. In an embodiment, the container comprises wall portions with different physical characteristics. In other embodiments, the walls of the container are made of the same material.