User manual Lectrosonics SPNTWB - Stand-Alone Interface SPNTWB
Operating instructions and pdf manual for use - Lectrosonics SPNTWB - Stand-Alone Interface SPNTWB User manual, User manual Lectrosonics SPNTWB - Stand-Alone Interface SPNTWB, Lectrosonics, SPNTWB, Stand-Alone, Interface, SPNTWB,
User manual for Lectrosonics SPNTWB - Stand-Alone Interface SPNTWB
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User manual for the Lectrosonics SPNTWB - Stand-Alone Interface SPNTWB
The user manual for the Lectrosonics SPNTWB - Stand-Alone Interface SPNTWB provides
necessary instructions for the proper use of the product A/V Presentation - Audio Conferencing.
The SPNTWB from Lectrosonics combines the boards from the company's SPN812 and the SPNCWB into a 2U rack-mount chassis to provide a complete, stand-alone component for telepresence and audio conference systems. The unit can be used with additional ASPEN processors to add additional inputs and outputs. Setup and adjustments can be made using the control panel software or the front panel LCD interface. Inputs and outputs appearing on the LCD have been consolidated into logical groups to simplify navigation.
The far end audio signals in a conference participate in the same manner as local microphones connected to the processor. Three sites connected via two codecs and a telephone line can be bridged into a single conference as seamlessly as local microphones.
The ASPEN AEC (Acoustic Echo Canceller) provides advanced algorithms developed to address the need for a single acoustic echo canceller that could handle the challenges of multi-site bridging and an unlimited number of microphones. The AEC converges very quickly, and then continues to increase the cancellation depth at every opportunity as a conference continues. Cancellation depth will increase even with brief signal peaks from the far end, and convergence will never be lost with any type of signal or in double talk situations.
The AEC in combination with the patented gain proportional mixing algorithm provides excellent audio quality without echo heard at the far ends. Signals from the far ends of the conference are routed to the local sound system and also to a final mix that is used as a reference signal by the AEC. Audio from the local microphones (which includes far end audio from the local loudspeakers) is routed to the AEC via a second final mix for cancellation of the far end signals. After processing, the output of the AEC is routed back to the far ends through the matrix.
The proprietary noise reduction filter used in ASPEN processors is a third octave dynamic processor which is very effective when applied to the far end Codec and telephone line signals when poor connections occur. An Ethernet port is provided for setup and control via standard network connections, and an RS-232 port is provided for use with remote control systems. The design allows simultaneous, multi-point third party control.
A two channel power amplifier is included for loudspeakers in the local sound system. The power amplifier is driven by final mix outputs from the matrix and has a full set of signal processing, including parametric EQ, compressor and limiter. Class-D amplification is implemented with a late generation component that provides exceptional efficiency, low heat, excellent audio performance, and cannot be damaged by wiring errors.
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Additional parameters of the Lectrosonics SPNTWB - Stand-Alone Interface SPNTWB:
Specifications
Audio Input
Microphone/Line Inputs: Digitally programmable-gain microphone to line level differential inputs Either side can be grounded or left floating Cable shield shall be connected to ground 4 x 5-pin Phoenix
Maximum Input Level: 20 dBu
Gain: 0 dB to 56 dB, programmable in 8 dB steps (the analog gain is automatically selected by selecting the input gain)
Input Impedance: 8 kΩ differential mode, 2 kΩ common mode
Phantom Power: 48V
Dynamic Range: 102 dB
EIN: -127 dBu (20Hz to 20kHz, unweighted)
THD + N: 0.01%
Audio Output
Line Outputs: All outputs are floating transformerless differential outputs Either side can be grounded or left floating Cable shield shall be connected to ground 6 x 5-pin Phoenix
Nominal Level: 0 dBu, Channels 1 to 8 0, -20, -40 dBu, Channels 9 to 12
Headroom: 20 dB
Output Impedance: < 50Ω, all outputs at all attenuator settings
Dynamic Range: 105 dB
THD + N: 0.01%
Filters: All filters, including the noise reduction filter (NRF) have zero processing delay
Noise Reduction Filters: Adjustable 6 to 35 dB on every input
Tone Control Stages: 4 per input channel
Parametric EQ Stages: 8 per output channel
ADFE: 8 per input channel (configurable as Static or Dynamic)
Other Connectors
1 x 1/4" TRS Headphone (front panel) 1 x USB Type B (front panel) 2 x RJ-11 Telephone Set/Line 2 x RJ-45 Remote Control 2 x RJ-45 ASPEN Port 2 x DB-25 Programmable Logic 1 x RJ-45 Ethernet 1 x DB-9 RS-232 1 x 5-pin Phoenix Power Amp Output
High Shelving: Butterworth; 6, 12, 18, 24 dB/octave Bessel; 6, 12, 18, 24 dB/octave Additional Parameters: Frequency (Hz) Boost/cut (dB)
Peaking EQ Parametric: Frequency (Hz) Bandwidth (octave) Boost/cut (dB)
Internal Signal Generator
White Noise: Level (dBu)
Pink Noise: Level (dBu))
Tone (Sine Wave): Level (dBu) Frequency (Hz)
Swept Sine: Single Sweep Continuous Sweep
Sweep Waveform: Sawtooth (up or down) Triangle
Sweep Rate: Linear Logarithmic
Sweep Parameters: Start Frequency (Hz) Stop Frequency (Hz) Level (dBu) Sweep Time (sec)
Latency
Single-Board: 64 audio samples = 1.333 ms System: 1.333 ms (Master) + 0.125 ms for each slave board Example: 2.958 ms for 192 inputs with 48 outputs (system with 2-SPN1624 and 5-SPN32i processors)
Echo Cancellation
Acoustic Echo Canceller: Centralized, bridgeable for telepresence AEC Tail Time: 128 ms - will never diverge, regardless of signal type (i.e. sine wave) Line Echo Tail Time: 48 ms AEC Bandwidth: 10 kHz Telephone Hybrid Return Loss: 26 dB + line echo canceller = 45 dB
Audio Inputs (Codec)
Gain: -20 dB to +20 dB, programmable in 1 dB steps Input Impedance: 15kΩ (differential); 375kΩ (common) Connector: 1 x 5-pin Phoenix
Input Dynamic Range (Codec): 102 dB (unweighted 20 Hz to 20 kHz) Output Dynamic Range (Codec): 105 dB (unweighted 20 Hz to 20 kHz) Audio Performance (Codec): THD + noise: 0.01%
Proprietary Network
Physical level: LVDS (Low Voltage DIfferential Signal) high speed Cable Type: CAT-6 Transmission Speed: 1 Gbps
Control Input
Number of Inputs: 30 Analog Voltage Range: 0 to 5V Logic Input: TTL, LVTTL, CMOS, LVCMOS
Control Output
Number of Logic Outputs: 16 Logic Control: Active low Max Sink Current: 100 mA Max Supply Voltage: 40V Supply Voltage for Control I/O: 5V Max Current: 750 mA
Remote Control
Codec 1: Lectrosonics RCWTH4, RJ-45 jack Telephone: Lectrosonics RCWTH4, RJ-45 jack
The user manual for the Lectrosonics SPNTWB - Stand-Alone Interface SPNTWB can be downloaded in .pdf
format if it did not come with your new audio conferencing, although the seller is
required to supply one. It is also quite common that customers throw out
the user manual with the box, or put the CD away somewhere and then can’t find it.
That’s why we and other Lectrosonics users keep a unique electronic library
for Lectrosonics audio conferencings,
where you can use our link to download the user manual for the Lectrosonics SPNTWB - Stand-Alone Interface SPNTWB.
The user manual lists all of the functions of the Lectrosonics SPNTWB - Stand-Alone Interface SPNTWB,
all the basic and advanced features and tells you how to use the audio conferencing.
The manual also provides troubleshooting for common problems. Even greater
detail is provided by the service manual, which is not typically shipped with the product,
but which can often be downloaded from Lectrosonics service.
If you want to help expand our database, you can upload a link to this website
to download a user manual or service manual, ideally in .pdf format. These pages
are created by you – users of the Lectrosonics SPNTWB - Stand-Alone Interface SPNTWB. User manuals are also
available on the Lectrosonics website under A/V Presentation - Audio Conferencing.
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