I love the CV to OSC implementation. Since Kyma supports OSC out of the box and registers via OSCBonjour, it appears as a destination to CV to OSC. Very very nice. I was doing great but I ran into the issue below.
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Eep, now I found one issue. Kinda interesting.
I was using an LFO sine wave at like 2hz controlling a param and this was fine.
As soon as I slow down the LFO to subhertz or send in a constant CV the input level fades as if my MOTU Ultralite mk3 is blocking or filtering the DC value.
I was pretty confused, so I looked at it on the dedicated Oscilliscope for the mk3 to remove possible interaction of Ableton. If I send in a constant cv it registers when twiddling the cv level, but as soon as I stop twiddling and want a constant level as shown in the silentway demo, the value fades to zero over about 1 secs. Therefore, an LFO at 1 hz works fine, but slower than that and the LFO amplitude decreases, probably due to this fading of the DC level the interface is reading.
Constant or slow moving cv level changes fade to zero.
Is this a MOTU artifact? If it matters, I am using a 1/8" TS to 1.4" TS cable here.
Question #2:
Kyma is expecting float values between 0...1 not -.5..+.5
Is it possible to add +.5 to value in CV to OSC by using lua script?
I did look at the scripting documentation and also at midi.lua in the .component. Was looking for a handler similar to handleCC( channel, cc, value ) but for the OSC value but maybe it there isn't one?
CV to OSC Success yet a few issues too
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- KVRian
- 1417 posts since 22 Mar, 2002 from UK
Answer for #1 and probably indirectly #2 - the MOTU's inputs are not DC-coupled, and neither are the inputs of any audio interface I know of. This is what Silent Way CV Input addresses - give that a go.