Lectrosonics has introduced its Aspen (Audio Signal Processing Expansion Network) product line.
Employing proprietary algorithms developed by the company and the latest in high-speed DSP hardware, the Aspen series features TCP/IP control over Ethernet, unlimited input expandability, real-time clock, 48-channel matrix bus, 1Gb/s expansion port, and true 48V phantom powering for all inputs.
Aspen products include the model SPN812, SPN1612, SPN1624 and SPN2412 matrix processors, the SPNConference unit for teleconferencing, the SPNTrio all-in-one teleconferencing processor with power amp, the SPN16i and SPN32i input-only modules, and the SPNPower12 multichannel power amplifier. All units employ the Aspen port with 1Gb/s throughput capability for audio and control data on a single Cat 6 line.
At the heart of Aspen is the proprietary Proportional Gain Algorithm for auto-mixing without the use of noise gates, resulting in transparent audio and increased gain before feedback. Five mixing modes are individually selectable for every matrix cross point. Centralized echo cancellation enables bridging for telepresence applications along with simultaneous telco and videoconferencing.
Nearside latency is kept to 1.33ms for a single unit, with only 0.12 ms for each additional unit in the system. A total of 48 mixes on each board facilitate output matrixing up to 48 channels.
Every input in the Aspen system supports mic- or line-level signals and includes a 1/3-octave noise reduction filter, an eight-notch feedback suppressor, delay, a four-band fourth-order filter set, a dynamic compressor, and two level meters. All inputs have 48V phantom power. Every output includes an eight-stage, fourth-order filter set, delay, dynamic compressor, limiter and level meter.
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