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Language / Sprache: DE EN
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The technological background of the AXONWhat makes the Axon so fast is its so called „Early Transient Recognition“ (ETR). To understand how it works, let's have a look at the wave signal coming from a magnetic pickup (in this case it is the low E string of a guitar). The beginning of the signal is full of information, contained in the pattern of the signal peaks. These peaks represent the initial picking impulse and the reflections of that impulse on both ends of the string.
Imagine you put a drop of milk into your coffee. Depending on the size of your cup and the position where the milk came in, you can see different wave patterns on the surface. Each wave pattern is representative for one cup size and one milk drop. When you watch this many, many times with different cups, after a while you might be able to know the cup and where the milk came in, just by looking at the wave pattern. It will definitely be extremely boring to do this with coffee and that is the reason why the AXON prefers guitar music. But the principle is more or less the same: Here the cup size is the length of the guitar string from the bridge to your finger and the milk is your pick. The AXON’s neural net analyzes, if the peak pattern of the incoming signal corresponds to a known pattern. If there is a match, pitch and pick position can be calculated from the peak distances.
The later signal is a more or less statical periodic waveform, where the length of one period corresponds to the pich of the note you have played. In this part of the signal, the AXON looks for the points where the waveform crosses the zero line with maximum slope. From the distance between these points, it can calculate the pitch again. This is done permanently to confirm the note recognized by the ETR and to detect frequency changes from bends or slides.
Other guitar synthesizers that do not have the patented ETR technology of the AXON can only detect the pitch from this periodic part of the signal. To do that properly, at least three complete periods of the waveform after the initial impulse are needed. As a result, the latency of a guitar synth without ETR is about three times higher compared to the AXON.
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