Phased Line Array Audio Processor Solutions for Lecture Halls D6684

  2. Configuration for Lecture Halls -- Solution

Configuration List

● Lecture hall dimensions: 30m long, 20m wide and 6m high.

  3. Product Advantages

Change in Traditional Installation Model

DSPPA’s new generation of acoustic directional line array speaker adopts highly advanced Dynaudio Direct Control (DDC) technology and Digital Signal Processing (DSP) technology, which can change the direction of the main beam of the line array speaker and direct the sound to the desired position when it is fixed and vertically mounted. Also, it can be embedded in the wall, addressing the drawbacks of the traditional line array speaker, such as unattractive installation effect and difficulty in free adjustment.

Improvement in Acoustic Environment

The system maximizes the sound transmitted directly to the audience, reduces sound intensity from walls, ceilings, and other acoustically reflective surfaces, and allows users to define areas where sound coverage is required or avoided, thus suppressing undesired sound reflections and solving the problem of complex reverberant space sound reinforcement.

  4. Line Array Sound Field Processor -- D6684

  5. Product Features

DSPPA’s Phased Line Array Speaker

● With built-in sidelobe suppression by phase-controlled beam conditioning algorithms.

● Adopt Dynaudio Direct Control (DDC) technology and Digital Signal Processing (DSP) technology.

● Can project the acoustic center of the line array speaker to up to four listening areas.

● With the directivity of vertical coverage controllable, to evenly emit sound downward in a specified direction and greatly reduce the upward emission of sound.

● Work with the sound field processor to increase speech intelligibility in reverberant environments.

● The 3D emission model synthesized by the line array speaker can be displayed and edited in the user interface.

● With built-in ultra-high sensitivity input signal detection function for flexible noise reduction on/off.

  6. Functional Highlights -- Sound Field Directivity

 --4-Band Orientation

The line array speaker features excellent directivity, and the 3D emission model synthesized by the line array speaker can be displayed and edited in the user interface; it is possible to adjust the directivity in four directions simultaneously so that the audience in the area of the direction can get an excellent listening experience.

Pull the sound beam arrows with a mouse to adjust the angle and distance, or change the parameters in the input boxes in the upper left corner of the interface, and then the line array speaker will change the sound orientation correspondingly according to the angle and distance. In the interface, you can adjust the input for bypass processing and sidelobe suppression.

-- Speaker Detection and Noise Reduction

Speaker Detection

● With a power-on self-test button. When it is turned on, it will automatically check whether each line array speaker is damaged or not every time it is turned on, and display the status on the machine panel.

Intelligent Squelch

● The intelligent squelch detection function enables ultra-high sensitivity input detection for accurate noise/audio recognition and automatic squelch.

-- EQ Control

The line array speaker has a 15-band input EQ adjustable, with customizable adjustments for four main beams.

With a 15-band EQ, adjustable from 20Hz to 20000Hz. Change the input equalization of the sound by adjusting the equalizer slider corresponding to Hertz.

-- Remote Control

The line array sound field processor is connected to the router through a network cable. You can log in to the processor control interface by entering the address and password on the Google Chrome browser of your computer or tablet for visual control operation of the line array speaker, which is convenient and easy to operate.

   7. Application Scenarios

Based on the directional sound transmission principle of the line array speaker, it can effectively solve the problem of reverberation in the hall, and can also be applied to churches, gymnasiums, hotel lobbies, showrooms, banquet halls, and other places that are relatively empty and prone to reverberation.