Soft dB Zen-Ten Spec sheet - Manual (Page 4)

Technical Specifications
Hardware:
- 3 inputs for the reference signals with an adjustable gain (0 dB to 54 dB)
- 3 inputs for the error signals with an adjustable gain (0 dB to 54 dB)
- Software selectable Electret microphone input or direct input
- Direct input dynamic ±20V
- Microphone input dynamic ±2V
- 3 outputs for control signal (dynamic ±2V)
- Very low group delay: 0.4 ms
- USB 2.0 link
- Metal box, 28 x 21 x 8 cm
PC interface specifications:
- User friendly PC interface for setting the controller and analysing the control results
- Automatic control paths identification module
- Easy-to-use module for designing the pass-band filter applied on inputs
- Scope and frequency analyzer allowing the spectral analysis of any signal of the control system
- Real-time control filters observer
- Real-time estimation of the noise reduction on each channel
- Useful export functions for reports and further analysis
- Built-in analysis module
X-LMS algorithm
- Adjustable frequency span up to 39 kHz (with real-time optimization)
- Selectable coupled or non-coupled mode
- Primary control path compensation
- White noise generator for stabilization of the control filter coefficients
- Real-time normalization of the adaptation step for the LMS algorithms
- Pass-band filter on all inputs to force the control on a specific spectral zone
- Real wideband controller : for instance, at 15.6 kHz, the controller can optimize up to 290 coefficients
(coupled mode) and 992 (non-coupled mode)