摘要:
The invention relates to a speaker enclosure (1) comprising at least two channels (2, 3, 4), wherein a first (2) and second (3) channel are respectively dedicated to separate and adjacent first and second frequency bands, each of said channels (2, 3) including a filtering stage supplied by the control signal (6) and a speaker unit (20, 30, 40), wherein said speaker enclosure is characterized in that said channels also include means (10) for simultaneously: disconnecting the first channel (2) from the control signal (6); and modifying the filtering stage (34, 37) of the second channel so as to modify the frequency response thereof.
摘要:
At least two microphones (330, 370) generate wideband electrical audio signals in response to incoming sound waves, and the wideband audio signals are filtered (422, 428, 442, 448) to generate low band signals (423, 443) and high band signals (429, 449). From the low band signals, low band beamformed signals are generated, and the low band beamformed signals are combined with the high band signals to generate modified wideband audio signals. In one implementation, an electronic apparatus is provided that includes a microphone array, a crossover (450), a beamformer module (470), and a combiner module (480). The microphone array has at least two pressure microphones (330, 370) that generate wideband electrical audio signals in response to incoming sound waves. The crossover generates low band signals and high band signals from the wideband electrical audio signals. The beamformer module generates low band beamformed signals from the low band signals. The combiner module combines the high band signals and the low band beamformed signals to generate modified wideband audio signals.
摘要:
Embodiments of the invention include a speaker system having the ability to accommodate one or more transmission protocols as well as multiple upgrade paths. One or more replaceable cards sit in a socket or bus system. The cards may include one or more components for receiving a wireless audio signal and decoding the signal. Other cards may include circuits for converting the digital audio signals into analog audio signals. Yet other cards, or other components on cards, may include circuitry for filtering or modifying the audio signals. In some embodiments the main components of the cards may be formed in a re-programmable device that can be updated by a user. In conjunction, these components create a powered speaker system that is constantly upgradable as various data transmission standards and audio filtering standards mature.
摘要:
The systems and methods described herein relate to, among other things, a transducer capable of producing acoustic and tactile stimulation. The transducer includes a rigid mass element disposed on the diaphragm of a speaker. The mass element may optionally be removable and may have a mass selected such that the resonant frequency of the transducer falls within the range of frequencies present in an input electrical audio signal. The systems and methods advantageously benefits from both the fidelity and audio performance of a full-range speaker while simultaneously producing high-fidelity, adjustable and palpable haptic vibrations.
摘要:
A speaker device includes: a casing having a cylindrical shape which opens at one end side; and a sounding body arranged at the other end side of the casing and driven based on an audio signal, wherein a sealed space is formed by the casing and a setting surface when the casing is set, which functions as a cabinet.
摘要:
A hearing aid (21) is devised, comprising a first output converter (26), a second output converter (27), a first acoustic output transducer (34) and at least a second output transducer (35). The first output converter (26) and the first output transducer (34) are configured to reproduce the high frequencies of the processed signals, and the second output converter (27) and the second output transducer (35) are configured to reproduce the low frequencies of the processed signals. The output converters (26, 27) may preferably be embodied as direct digital drive output converters.
摘要:
The invention relates to a method for automated tuning of a sound system, the sound system comprising delay lines, equalizing filters, and at least two loudspeakers, the method comprising the steps of: reproducing a useful sound signal through the loudspeakers, measuring sound pressure values at at least one location, providing a target transfer function for tuning the delay lines and the equalizing filters of the sound system, the target transfer function representing a desired transfer characteristics of the sound system, adjusting the delay of the delay lines, and adjusting amplitude responses of the equalizing filters such, that the actual transfer characteristics of the sound system approximates the target function.
摘要:
Die Erfindung betrifft eine Filteranordnung für ein Lautsprechersystem und umfasst mehrere Filterebenen, in welchen jeweils eine Anordnung von Hochpässen (7) und Tiefpässen (8) vorgesehen sind. Die erste Filterebene weist einen Hochpass (7) und einen Tiefpass (8) auf, welchen über eine Signalverzweigung (6) ein Eingangssignal zugeführt wird. Der Ausgang eines Hochpasses (7) oder Tiefpasses (8) einer Filterebene wird auf einen Hochpass (7) und Tiefpass (8) der nächsten Filterebene geführt. Die Hochpässe (7) und Tiefpässe (8) nach jeder Signalverzweigung (6) sind jeweils komplementär ausgebildet. Die Ausgänge aller Hochpässe (7) und Tiefpässe (8) der letzten Filterebene werden zur Bildung von Ausgangssignalen herangezogen.
摘要:
The invention relates to a method for automated tuning of a sound system, the sound system comprising delay lines, equalizing filters, and at least two loudspeakers, the method comprising the steps of: reproducing a useful sound signal through the loudspeakers, measuring sound pressure values at at least one location, providing a target transfer function for tuning the delay lines and the equalizing filters of the sound system, the target transfer function representing a desired transfer characteristics of the sound system, adjusting the delay of the delay lines, and adjusting amplitude responses of the equalizing filters such, that the actual transfer characteristics of the sound system approximates the target function.
摘要:
A speaker array apparatus (1) capable of performing directivity control with ease even when sound emission is performed based on audio signals of different frequency ranges. The speaker array apparatus includes a speaker unit (22) for emitting high-frequency range sound, and another speaker unit (21) for emitting low- and high-frequency range sound. A signal processed by a high pass filter (52) is used for generation of both audio signals used by these speaker units to emit the high-frequency range sounds. Since both the audio signals (Sa,Sb) are rotated in phase similarly to each other, the phases of audio signals supplied to both the speaker units are in coincidence with each other in high-frequency range, which makes it easy to carry out directivity control.