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ASPEN

Architecture and Signal Flow

TECHNOLOGY OVERVIEW

Rio Rancho, NM, USA

www.lectrosonics.com

• OptimizedArchitecture

• AdvancedEchoCancellation

• ThirdOctaveNoiseReduction

• Fullcrosspointmatrixwith48outputsand

unlimitedinputexpansion

• TCP/IPEthernetaddressable

• Simultaneousmulti-point3rdpartyandnative

control

• Seamlessauto-mixingwithPGA™atthematrix

crosspoints

• Ultra-lowlatency

• AutomaticMaster/Slavedetection

• SingleCAT6interconnectioncarriesdata,audio

andcontrolsignalsbetweenunits

Summary of content (7 pages)

PAGE 1
ASPEN TECHNOLOGY OVERVIEW Architecture and Signal Flow • Optimized ArchitectureTM • Advanced Echo Cancellation • Third Octave Noise Reduction • Full crosspoint matrix with 48 outputs and unlimited input expansion • TCP/IP Ethernet addressable • Simultaneous multi-point 3rd party and native control • Seamless auto-mixing with PGA™ at the matrix crosspoints • Ultra-low latency • Automatic Master/Slave detection • Single CAT6 interconnection carries data, audio and control signals between units Rio Rancho,
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Hardware Architecture The variety of models in this series are created by combining “building block” circuit board assemblies: • 8 input, 12 output mixer board • 16 channel input only board • 8 channel input only board • Conference interface board A single board can be enclosed by itself in a stand-alone 1RU chassis, or combined with another board in a 2RU chassis to create a variety of models. The 2RU models include an LCD with comprehensive access to all system settings and activity.
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Signal Propagation in the ASPEN Bus Scalability in the ASPEN Matrix The ASPEN bus provides a 1 Gbps throughput carrying audio and data with a single CAT6 connection between the units in a system. Each 8x12 mixer board provides 8 physical inputs, 12 physical outputs and access to the audio and data from the 48 final mixes in the ASPEN bus. Four virtual inputs are provided in any system configuration to feed signals from a built-in signal generator for setup, diagnostics and sound masking.
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Optimized ArchitectureTM The ideal structure for signal flow and functional blocks through a system wide matrix is a direct path from inputs to crosspoints to outputs, with no extra paths or taps necessary to add signal processing. It must offer a full capability of routing every audio input to any one or all audio outputs without limitation. Every audio input should have its own dedicated signal processing blocks present at all times.
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Seamless Automatic Mixing Low Latency Lectrosonics pioneered adaptive proportional gain automatic mixing algorithms. The proprietary algorithm* employed in ASPEN is a seamless process that eliminates abrupt switching (gating), controls acoustic feedback and suppresses background noise. The throughput latency of a single master board is only 1.33 ms, regardless of how much processing is being used. Each additional PCB adds only 0.125 ms.
PAGE 6
Single Point of Control All ASPEN models support simultaneous use of Ethernet, RS232 and USB ports for setup, monitoring, diagnostics and control. Installers and operators can use the software GUI to monitor the state of the processor via the USB port to verify that commands sent from the 3rd party controller (over RS232) are working correctly. Remote monitoring and setup can be conducted via a network connection and from remote sites over the internet.
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581 Laser Road NE • Rio Rancho, NM 87124 USA • www.lectrosonics.com (505) 892-4501 • (800) 821-1121 • fax (505) 892-6243 • sales@lectrosonics.