摘要:
According to an example aspect of the present invention, there is provided A controllable loudspeaker, the loudspeaker comprising a speaker element and a digital signal processor comprising at least one processing core and at least one memory including computer program code, the at least one memory and the computer program code being configured to receive a multicasted control signal, alter the behavior of the loudspeaker in response to the said control signal, wherein the altering of the behavior comprises applying settings stored in the memory of the digital signal processor of the loudspeaker.
摘要:
It is herein proposed a novel loudspeaker (100) with a reflex enclosure (110) that has the reflex port (112) terminating to the bottom (111) of the enclosure (110). The loudspeaker further includes a stand (120) which is removably attached to the bottom (111) of the enclosure (110) so as to create a clearance (C) between the bottom (111) and the surface supporting the loudspeaker (100).
摘要:
The invention relates to a method and apparatus for recognizing a digital audio signal in a system, in which at least some of the electronic components are at times in sleep or unenergized mode, in which method the digital audio signal is amplified and recognized, the amplified signal is decoded in a decoding circuit, the decoded signal is led to a signal processor for further processing and digital/analog conversion, and an audio signal is created from the analog signal. According to the invention, the amplified, undecoded signal is led directly to the signal- or microprocessor to be used and recognized, and the circuit implementing the decoder is kept in sleep mode unless a digital audio signal has been recognized.
摘要:
An identification method and apparatus in a sound-reproduction system, in which an electrical calibration signal is created, an audio signal is created in the loudspeaker from the calibration signal, the response of the audio signal is measured and analysed, and the system is adjusted on the basis of the measurement results. A light signal is created in the loudspeaker with the aid of a centralized control system, in order to indicate visually the loudspeaker that is the subject of the calibration.
摘要:
In a room with strong low-frequency modes the control of excessively long decays is problematic or impossible with conventional passive means. In this patent application a systematic methodology is presented for active modal equalization able to correct the modal decay behaviour of a loudspeaker-room system. Two methods of modal equalization are proposed. The first method modifies the primary sound such that modal decays are controlled. The second method uses separate primary and secondary radiators and controls modal decays with sound fed into at least one secondary radiator. Case studies of the first method of implementation are presented.
摘要:
The invention relates to a method and a loudspeaker for storing equalization settings in an active loudspeaker including a loudspeaker cabinet, at least one driver connected to the cabinet and an amplifier electronics including an equalizer, in which method the loudspeaker is calibrated in controlled conditions for forming factory calibration parameters for controlling the equalizer, the factory calibration parameters controlling the equalizer are stored in the amplifier electronics. In accordance with the invention the factory calibration parameters are also stored in a memory fixedly mounted to the loudspeaker.