Active array sound post and sound equipment system

Abstract

The invention discloses an active array sound post and a sound equipment system. The active array sound post comprises a box body, a plurality of loudspeaker units, an inverter tube, an alternating current power supply input, a signal input, a power supply switch, a built-in signal processing circuit and a power amplifier; the loudspeaker units are arranged in a linear manner; the loudspeaker unittakes the central axis of the loudspeaker unit as a reference and are distributed in the same plane; an input signal of the system is an analog audio electric signal; the active line array sound postis input through a single-ended interface (RCA) or a balanced interface (XLR) and then is divided into a plurality of paths; the plurality of paths of signals are connected with a plurality of pathsof independently working signal processing circuits; and the signals are subjected to corresponding processing, the processed audio electric signals are subjected to voltage amplification and impedance conversion through each group of power amplifiers, and finally, the processed audio electric signals are converted into audio signals with high voltage and low internal resistance, the audio signalsare used for driving each group of loudspeaker units, and each group of loudspeaker units make a sound.

Description

technical field [0001] The invention belongs to the technical field of electroacoustics, and in particular relates to an active array sound column and an audio equipment system. Background technique [0002] Line array speakers have the advantages of strong vertical directivity and wide coverage. And the sound pressure fluctuation caused by the change of transmission distance is smaller than that of traditional speakers. It can be used in situations where it is necessary to avoid standing wave interference, a long transmission distance is required, and the acoustic environment is complex. Typical usage scenarios such as: low sound pressure applications, video monitoring, specialty stores, passenger transport centers, sound fill applications, conference rooms, classrooms, style buildings, etc. In the existing system architecture of line array speakers, signal processing, power amplifiers, and line array speakers are independently set and then combined. The system cost is hi...

AI Technical Summary

Problems solved by technology

In the existing system architecture of line array speakers, signal processing, power amplifiers, and line array speakers are independently set and then combined. The system cost is high and the technical requirements for sound effect settings are high.

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