Thomas Henry's MIDI-to-CV Connection

WeAreAs1 at aol.com WeAreAs1 at aol.com
Fri Aug 18 12:01:08 CEST 2000


In a message dated 8/17/00 10:06:27 PM Pacific Daylight Time, kirke at lmi.net 
writes:

<< I'm curious. What do you consider to be limitations
 of a software lfo? >>

1.  Inability to accurately trace LFO waveform at fast LFO rates (approaching 
audio and above).

2.  Stepping noise/artifacts. (apparent mostly at slow rates - see #3)

3.  Limited low frequency range (analog LFO's can cycle over several minutes 
or more - see #2)

4.  Inadequate resolution of frequency control. (analog = infinite freq. 
resolution)

5.  Software LFO's take up precious processing resources, sometimes causing 
increased latency in other necessary processes (especailly at high LFO rates)

Yeah, I'm sure that given enough time and enough processing horsepower, you 
or some other whiz kid could solve all of these problems in your own homemade 
box.  However, so far, some or all of these problems remain quite prominent 
in all of the commercially available products that have software LFO's.

On the other hand, just about anyone with less than ten dollars worth of 
parts and a soldering iron can build a top-quality voltage-controlled LFO 
which displays none of those problems.

Michael Bacich



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