3.7 Signal Processing

The vertical coverage is determined by programming the module’s digital signal processing.

Use DSAPilot to determine the desired coverage. DSAPilot calculates and optimizes the signal processing required to achieve the desired results.

High pass/low pass filters, parametric EQ, delay, and gain are user adjustable for each of the two inputs.

Figure 3.7a DSAPilot Main

Figure 3.7c DSAPilot EQ / Monitor

Figure 3.7b DSAPilot Steering

Chapter 4 Description

4.1 System Overview

DSAi modules, are variable directivity, self-powered line arrays. Their vertical beamwidth is determined by the settings of an internal DSP (digital signal processor) and power amplifier for each transducer. This provides complete, on-site control over the range of possible vertical beamwidth patterns.

EAW’s Windows-based DSAPilot is used to set the coverage required for each module or cluster. The user-friendly DSAPilot optimizes the required signal processing for the design. This data is then uploaded to the DSAi Series modules in the system. DSAPilot normally communicates with the modules using EIA-485*. An optional CobraNet network interface is available.

*Formerly known as RS-485 (Recommended Standard 485)

4.1.1

DSAi SERIES MODELS

 

 

DSA250i: Full range, 2-way, module

 

 

DSA230i: Low frequency and voice-only module

Figure 4.1.1 DSA250i & DSA230i

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EAW DSA230i, DSA250i owner manual Description, Signal Processing, System Overview