BSS Audio Soundweb London BLU-101 Conferencing Processor with AEC (1RU)

BSS Audio Soundweb London BLU-101 Conferencing Processor with AEC (1RU)

BSS Audio Soundweb London BLU-101 Conferencing Processor with AEC (1RU)

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BSS Audio BLU-101 overview

  • 1Description

The Soundweb London BLU-101 Conferencing Processor with AEC from BSS Audio is a 1RU configurable signal processing interface, featuring AEC (Audio Echo Cancellation) algorithm. This interface features 12 analog inputs and 8 analog outputs. It has a high bandwidth and fault tolerant digital audio bus. This unit is controlled via the Soundweb BLU link Ethernet CAT5 connection.

The BLU-101 has an open architecture which is fully configurable through the HiQnet London Architect configuration and control software. The simple design software environment includes processing and logic objects, and a "drag and drop" configuration method.

The Conferencing Processor features dedicated AEC processing for up to 12 independent AEC algorithms. The AEC algorithm can be applied to signals coming from the local analog inputs or from the digital audio bus. 12 individual AEC references (one per algorithm) allow the user to provide a solution for multiple conferencing spaces using a single device. The BLU-101 also features Automatic Gain Control (AGC) and Noise Cancellation (NC) which are provided per AEC algorithm. AGC is designed to ensure that the microphone levels remain at an optimum level, and NC removes steady state noise (such as from a projector fan or air conditioning device) from the signal path.

This processor features a low latency, fault tolerant digital audio bus of 48 channels which uses standard CAT5e cabling giving a distance of 100m between compatible devices. Fiber media converters can be used to increase the distance between devices to over 40km. The systems analog inputs provide software configurable gain in 6dB steps up to +48dB per channel and software selectable Phantom Power per channel. The Phantom Power, Signal Present and Clip information per channel are on the front panel LED indicators, eliminating the need for a PC. A bi-directional locate function allows devices to be identified both from and within HiQnet London Architect software.

The systems 12 control inputs and 6 logic outputs, allow the BLU-101 to be integrated with GPIO compatible devices. The BLU-101 is compatible with the entire Soundweb London family and its 48 channel digital audio bus represents channels 1-48 of the larger 256 channel digital audio bus when integrated with the BLU-800 and BLU-160 processors, as well as the BLU-320, BLU-120, BLU-BIB and BLU-BOB expanders.

12 Analog inputs (with 48V phantom power per channel) and 8 analog outputs
Configurable signal processing
12 Channels of AEC processing with Auto Gain Control (AGC) and Noise Cancellation (NC)
Rich palette of processing and logic objects
48 Channel, low latency, fault tolerant digital audio bus
Clear front panel LED indication
Bi-directional locate functionality
12 Control inputs and 6 logic outputs for GPIO integration
Soundweb London interface kit for third party control system integration
HiQnet device
Configuration, control and monitoring from HiQnet London Architect
In the Box
BSS Audio Soundweb London BLU-101 Conferencing Processor with AEC (1RU)
  • Limited 5-Year Warranty
  • Table of Contents
    • 1Description

    BSS Audio BLU-101 specs

    Analog Audio Inputs
    Inputs 12 x balanced Phoenix Combicon inputs, 36 screw terminals
    Mic/Line Inputs Nominal Gain: 0 dB
    Electronically switchable up to +48 dB, in +6 dB steps
    Input Impedance 3 kΩ
    Maximum Input Level +20 dBu with 0 dB input gain
    +8 dBu with 12 dB gain
    CMRR > 75 dB at 1 kHz
    Input Noise <-125 dBu typical with 150 Ω source
    Phantom Power 48 V nominal, selectable per input
    Latency A/D; 37/Fs (0.77 ms @ 48 k)
    Analog Audio Outputs
    Outputs 8 x balanced Phoenix Combicon, 24 screw terminals
    Maximum Output Level + 19 dBu
    Frequency Response 20 Hz to 20 kHz (+0.5 dB/-1 dB)
    Total Harmonic Distortion (THD) <0.01% 20 Hz to 20 kHz, +10 dBu output
    Dynamic Range 108 dB typical, 22 Hz to 22 kHz unweighted
    Crosstalk <-75 dB
    Output Impedance 40 Ω balanced and 20 Ω unbalanced
    Latency D/A; 29/Fs (0.60 ms @ 48 k)
    AEC Processing 12 independent algorithms
    Latency (Original 8k Algorithm): 2385/Fs (49.69 ms @ 48 k)
    Latency (Full Bandwidth Algorithm): 1609/Fs (33.52 ms @ 48 k)
    Tail Length: 200 ms
    Average Convergence Rate: 49 dB/s (net convergence over multiple FFT bands)
    Control Portwdwfbxraevwbdxureurzqebzrryzqyuzd
    Ports 12 x control input
    6 x logic output
    Input Voltage 0 to 4.5 VDC
    Input Impedance 4.7 kΩ to +5 VDC (2-wire mode)
    >1 MΩ (3-wire mode)
    Output Voltage 0 or +5 VDC unloaded
    Output Impedance 440 Ω
    Output Current 10 mA source, 60 mA sink
    Watchdog Function Watchdog Output: Phoenix/Combicon connector for failsafe control
    Opto Output Current: 14 mA maximum
    Withstanding Voltage: 80 V maximum (Off)
    Series Impedance: 220 Ω (isolated)
    General Specifications
    LED Indicators Per Input: Signal Present, CLIP, 48 V (input only)
    Other: COM, STAT, ERR, PWR
    Connectors 1 x RJ45 Ethernet, control network
    2 x RJ45 Ethernet, BLU link
    1 x 9-pin D-Sub, RS-232 serial port
    Maximum Cable Length Control Network: 300' (100 m) on CAT5 cable between device and Ethernet switch
    BLU Link: 300' (100 m) on CAT5e cable between devices
    Power Supply 100-240 VAC, 50/60 Hz
    Power Consumption <55 VA
    BTU <188 BTU/hr
    Operating Temperature 41 to 95° F (5 to 35° C)
    Dimensions (H x W x D) 1.75 x 19.0 x 12.5" (4.5 x 48.3 x 31.8 cm)
    Weight 9.1 lb (4.1 kg)

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