User Manual

Crumar Seven User s Manual '
Dynamics. The MIDI system used in most keyboards since the early eighties allows a maximum of 127 velocity levels for each note, but
most sample-based instruments are usually limited to just 3 or 4 levels, 8 at best. Some of the modern sample libraries, those that
require many Gigabytes worth of hard disk space and that can only be played on a full featured computer, can go up to 12, 16, or even
24 samples for each note, resulting in a huge waste of disk space for just one sound. Anyway, having all 127 levels filled with samples
would be crazy even for today's computer technology. Crumar Seven uses an 11-bit dynamic model, resulting in a total of 2047 velocity
levels, all used by the modeling engines. The advantage behind this virtually unlimited dynamic model is that the human being would
never notice the switch between different dynamic levels, having the impression of a continuous and smooth transition between
dynamic changes, just like playing a real acoustic instrument.
Last but not least, a clean and crisp sound. Since the sound is generated in real-time, and is not the result of a sound recording, it will
always be perfectly clean, completely free from any background hum or hiss introduced by a recording equipment. Not counting that it
can be perfectly dry, with no unwanted environmental reverberation mixed to the sound, so that artificial ambience and reverberation
can be added to taste without compromising the original sound. You can't delete unwanted or excessive reverberation from a sampled
sound, any more than you can remove the sugar from a cooked apple pie. Now imagine this: if a piano is sampled along with the
natural reverberation of the room it is located in, each time you play a single note you hear both the piano note and the reverb, which
can also be pleasing; but if you play a four note chord, what you hear is four piano notes plus four reverbs, which could very well be far
from being a pleasing thing.
This list could be even longer than this, but we're confident that you now get the picture. Physical modeling can do much more.
Crumar Seven User's Manual - Page 14