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7. Basscreator
The Basscreator algorithm creates a virtual bass based on the "lost fundamental" principle:
It creates a range of higher harmonics of a narrow frequency band around a used specified
centre frequency. This is a psycho-acoustical effect that fools your brains to think something
is going on in the bass frequency range. There are numerous advantages to the algorithm,
you can:
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Replace some of the original bass in the signal with virtual bass to avoid noise
emission problems
-
Beef up small speakers to give a sense of low end that couldn't be achieved normally
on the same speaker
-
Reduce the amount of sub-woofers needed to save space and money
-
Use the Basscreator for infill systems to maintain a consistent sound field with the
added advantage of avoiding interference problems with the main systems sub-
woofers (the perceived bass is in a different frequency range)
-
Use the Basscreator on small line-array systems to bring the bass in the frequency
range where the line-array is actual capable of behaving as a line-array.
The pictures below give an impression of what happens within the Basscreator algorithm.
If we put in a sine wave with a frequency of 50 Hz and we put the output of the device in an
analyzer, we see the sine wave as a single spike.
All material © 2007. Martin Audio Ltd. Subject to change without notice.
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