LD Systems LDMAUI44 Manuel D'utilisation page 17

LD SYSTEMS LECC DSP:
WIRINGEXAMPLE:
WHAT DOES LD SYSTEMS LECC DSP STAND FOR?
DSP stands for Digital Signal Processing (Digital Signal Processing), LECC for limiter, EQ, Compressor and
Crossover. The digital signal processing ensures maximum audio performance with maximum clarity and
protects the PA system from overload.
WHAT EXACTLY DOES THE LECC DSP DO?
The Limiter function protects the speakers and prevents distortions caused by overload. Separate limiters
for the bass, midrange and high range attenuate the signal when the level exceeds a value which could have a
negative effect. Each limiter is optimised for one of the three seamlessly contiguous frequency ranges (multi-band
limiter). The system can be operated in this manner with a higher overall sound pressure as extreme peaks are
automatically lowered, so that the total volume does not need to be reduced.
The Multiband EQ works over the entire frequency range and optimises the overall sound of the system.
The Compressor is switched on automatically to raise the bass response and create a punchier sound. When
the volume is increased, the bass boost is automatically reduced. The automatically controlled bass blends
perfectly into the overall sound.
The Crossovers divide the audio signal according to the frequency range of the respective speakers, namely
the subwoofer or the mids and tweeters of the array column. The amplitude and running-time optimisation of the
crossover ensures that all frequencies are output evenly and reach the listener at the same time.
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