Audio Output Module with DSP
Model: DAA424-DSP
The DAA424-DSP is a 4 channel, 24-bit analog audio output module that streams any of the network audio channels with output digital signal processing to optimize the program content for audio devices at the end of the signal chain.
The 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 the remote channels is accomplished using a 6.144Mb/s API channel embedded within the network management architecture. The application GUI is part of the comprehensive SmartPath Design and Control software suite.
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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 (to +24dB ) |
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Products
