NEXUS – XDSP – Use cases:

Signal Processing for Static Mixes without Console The versatile options offered by the XDSP board are freely configurable and enable signal processing chains similar to those of a mixing console. A wide range of requirements can thus be met for static audio processing, from frequency- to dynamically-changing measures. In a situation in which the same speakers repeatedly work with a microphone, a sound can be set up with equalization, dynamic limit and limiting and statically round off the corresponding input signal or call it up again for the circumstances as a stored snapshot of the matrix operating program.

Crossover for Controlling Active Loudspeaker Systems Active loudspeaker systems without their own signal processing can be supplied with tailor-made signals because the XDSP card can also take over the function of a crossover as standard. This way, the audio channels are output directly to the speaker. For this purpose, the high and low-pass modules with a range of 20Hz-20kHz can be inserted into the signal path.

Correction of Delay Differences between Loudspeakers The spatial conditions at concerts or performances in halls and other venues often force the use of additional loudspeakers, supporting the main sound system. Delay lines installed far apart from each other are common, especially when high demands are placed on good sound coverage of all seats. However, this leads to runtime differences with the signal of the mains, whose delayed arriving wave fronts cause phase problems and echoes. The additional speakers must therefore be tuned to the main rig so that the more distant delay lines do not output the signal until the sound of the mains has reached them. Such required delays in the signal path can be achieved using the XDSP board by adjusting the output signals of the NEXUS system with delays that can be set to tenths of a millisecond.