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Old 01-15-2018, 09:56 PM
jim jim is offline
Join Date: Nov 2008
Location: Albuquerque, NM
Posts: 4,573

As eenixon mentions, CV signals in Numerology are floating-point numbers -- i.e. the same values used for audio. Also like audio, it is a 'stream' of values instead of discrete messages (like MIDI or OSC). This is a very powerful way to represent an arbitrarily moving signal, but can be very much overkill for many types of musically useful signals -- like note numbers.

Here's a short guide to how to pick the most efficient, but still accurate way to send information around:

Use MIDI For: Medium resolution and medium update rates. Everything from note values, triggers and gates, and many, many synthesis parameters (frequency cutoff, LFO speed, etc). As tempting as it might be to use CV for everything, you can often get by with just MIDI -- and it works with just about anything. One thing to watch out for though: It isn't difficult to saturate a MIDI interface with Numerology-generated notes and CC messages -- but IAC busses are software are generally OK w/ high-data-rate MIDI.

Use OSC For: High resolution and medium update rates. Slow moving LFOs, frequency values, etc.

Use N4 Pro's CV2Audio and a DC-capable audio interface for those cases where you really need both high resolution AND high update rates. On a modular system, this typically means audio-rate modulation of some sort -- say a fast LFO, or a weird quickly moving control source (wogglebug). With something like Reaktor, you can use and audio input and an envelope follower to convert an audio-rate control signal into something it can use internally.

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