PathMaster Software
To capture the full value of an IMT network we have developed a comprehensive application that manages and leverages the networked appliances. The PathMaster application ensures that realtime network configuration and monitoring is easy. You can create input/output assignments, control matrix routing, monitor network performance or configure various network services such as audio DSP signal processing. PathMaster runs on a host PC and communicates via USB to the FC101 network fiber module in OMNInet systems or via Ethernet UDP on SmartBuss networks.
The audio DSP signal processing chain is a coeffiecient-configurable, fixed-program, 24 bi-quad per channel architecture, providing a full set of user programmable processing functions. Combinations of filter functions can be achieved using the bi-quads. For example, a 2nd order Butterworth low pass filter would only need one bi-quad.
Control of remote channels is accomplished using a 6.144Mb/s API channel embedded within the management architecture. The audio DSP GUI is part of the comprehensive PathMaster Design and Control software suite.
Click on an image to see a full size screenshot.
DAA424-DSP Audio Module Features
| Delay |
1 second per channel in 1ms increments |
| Filter Architecture |
24 bi-quad filters per channel |
| Filter Functions |
Parametric EQ
Butterworth high pass, band pass and low pass
Linkwitz-Riley high pass, band pass and low pass
Bass and treble shelf filters
Notch Filter |
| Filter Parameters |
48-bit data path
28-bit filter coefficients
Single cycle, 28 x 48-bit multiplier and 72-bit accumulator
User defined bi-quad coefficients for custom products |
| Processing Delay |
125µs Total |
| Compressor/Limiter |
Programmable dual threshold DRC functions per channel |
| Digital Gain |
Remotely controlled (+24dB to - ¥ ) |
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