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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.
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 DSA
i
SERIES MODELS
DSA250i: Full range, 2-way, module
DSA230i: Low frequency and voice-only module
7
Figure 3.7a DSAPilot Main
Figure 4.1.1 DSA250i & DSA230i
Figure 3.7c DSAPilot EQ / Monitor Figure 3.7b DSAPilot Steering