Multichannel harmonic additive synth help
Hi -
Just made this additive synth and trying to incorporate a playlist file as a placeholder for adc~ as I'm putting live optical sound through at some point so I'm just at the test stage but cant seem to get it working. It was working before I tried including a sound input so I'm obvs doing something wrong with the receive~ send~ objects.
Please be kind - I'm new to all this.
Check the help file for [loudness~], it doesn't work the way you think it works. You need to bang it to make it output a value, and that [route momentary] isn't needed.
[receive~ loudness_ctrl] has a [mc.cycle~] connected to it which doesn't make sense, since the only messages you can send to [receive~] are set messages (to change the [send~] it is receiving from).
Thanks for the reply - if i start with the patch i made initially maybe that would be easier - I'm trying to include adc~ but not sure where to do this which is why I included the other objects you mentioned. If you could look at rhis and let me know perhaps thats easier?
What do you want to use your external audio source (adc~, playlist~ or anything else) for?
Do you want to sum it with your synth?
Use it as a modulator? For what?
Or maybe you to make an envelop follower out of it (hence the use of loudness~, which is probably not the right solution for the task), but again to control what?
I fogot to add that the incoming sound is optical sound from a 16mm project. I want extract a “brightness” value from the incoming optical-sound signal and then that brightness drives the frequency of a harmonic additive - i realise it isnt as simple as adding an adc~ but I started out with the patch and thoughjt I could build back from there.
Thanks in advance.
Aaah that's what you meant by "live optical sound"!
So I guess the audio signal reflects the brightness coming through the film, but it is still not clear if that signal represents actual audio (as it is intended for) or more a control signal that you drew yourself on the film.
In either way, it's probably a matter of matching ranges using [scale~], and see if you [mc.+~] or [mc.*~]. I'm not a MSP expert so I'm not sure what would be the typical modulation to do here.
Also, mybe that could help: Conversion cheat sheet
ooo thanks so much! The cheat sheet looks great. I'll have a play around tonight and see if I can get my head around it all. I have 4 x 16mm projectors each with different optical sound loops on - rhytm is generated by interspersed black frames on the film which I'm also using to experiment with sound phasing. I'm trying to then put all the abstract sonic optical sound traces through MAX msp to create a beautiful soundscape. Maybe one projector/ sound loop through a granulator, another through this harmins add synth, etc - not really sure what I'm doing tbh.
Thanks for the help though.
Ok - last message - I've just done what you suggested re: scale etc - I think I ve made something that works but being a total beginner not quite sure (I like what it does though but it could be terrible!) - could you just have a wee look and play around with it?
Thanks in advance the cheat sheet and your advice have really helped.
:)