Power synth idea - can i make it with SynthMaker?

nix · 2 Sept 2010

I think you could run quite a few instances on a modern computer. You'd probably have to try it to see. All success!

trogluddite · 2 Sept 2010

dutchound wrote: 8 sets of 5 lfo's and 8 oscillators and feed them all different values

That would be the right arrangement - SMs (lack of) voice management makes it tricky to stack unison voices like you're doing in Reactor.

datsound · 5 Sept 2010

it's still me except i lost my password.

I made the base of the 40 LFO and 8 oscillator synth, on reaktor it takes about 20% cpu usage and in synthmaker i am almost on 50% and i havent put the filters in yet. i understand it is due to my lack of optimisation... also the stream lfo's take 30 percent which is alot. to be honest maybe i am being silly and i left the midi in module set on 13 voices? could that be the reason? i dont have my dev pc here.

there are three solutions...

firstly i could use d.i.y. mono float lfo's and make some custom code based on the midi to sysex module to alternately send notes through parralel mono floating point lfo's as a pseudo poly routing

perhaps i could lower all the lfo modules from their inception to 386 hz, i.e. hop them by 44.1/128, although i dont know how that would be possible at the moment... as the oscillators are the things i would have to recode as sine functions being hopped.

also i could make a mono version using the midi mono module in synthmaker, which would sound really fat anyway and it sounds so fat that 1 voice would be pretty awesome anyway, and i can tailor it towards wind instrument expression modulations and it would sound ok...

i really really would love to sell synths based on the sound manipulation algorythims i found with reaktor because it is the best synth i have made ever and i have made many attempts, it has 7 knobs that completely warp the sound in humungous ways while it is still totally tonal, it spans all the possible sounds made with quite good additive synths. i have to make it! ugh! 😍

trogluddite · 5 Sept 2010

datsound wrote: left the midi in module set on 13 voices? could that be the reason?

Unlikely - a voice can only use CPU when it is actually playing. - but it is possible if you use very long release times on your envelopes. The poly vs. mono thing is a bit more complex - because of SMs use of sse code, four poly voices use the same CPU as only one voice, so don't discount keeping it polyphonic. On the other hand, if you do decide to make it a monosynth, you can use the mono4 data type so that you get 4 LFOs out of each block of LFO code. With the number of LFOs you are using, I would suggest trying the hopping method first though - there are plenty of people here who can help you out learning how to code if you've no experience of that - and there are some CPU-lite mathematical approximations you can use instead of the sine function that will be accurate enough for LFO use.

Regarding you CPU readings - have you done your comparisons using the windows task manager CPU meter? - SMs own readout can be very deceptive as it only displays the usage for one CPU/Core on multicore and multiprocessor machines - so on a CoreDuo it reads double what it should, and four times too much on a QuadCore!! OTOH, it can sometimes read too low because it doesn't show the 'green' and GUI processor usage - running a few instances in a VST host seems to be the most reliable method to get a good idea of CPU load.

infuzion · 6 Sept 2010

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datsound · 6 Sept 2010

Thanks for the optimisation wiki. yes i checked the CPU levels from the taks manager, it is on a dual core pentium, it seemed to be about 60/30 percent either core but the readings tend to do vary wildly from the average.

it would be good to make an oscillator from asm/c++ oscillator code that is widely available in sdk libraries, and to hop the entire code to make a truly low frequency oscillator that would take up ten times less processor... is it possible and would it be better to use asm or synthmaker syntax? have some people already made some code for oscillators that i could just put hop 128 (oscillator) cos that would be fantastic 🙂

i will make some research for code projects from others in the archives here and will see what i can see. thanks

aliasant · 6 Sept 2010

datsound wrote: Thanks for the optimisation wiki. yes i checked the CPU levels from the taks manager, it is on a dual core pentium, it seemed to be about 60/30 percent either core but the readings tend to do vary wildly from the average.

it would be good to make an oscillator from asm/c++ oscillator code that is widely available in sdk libraries, and to hop the entire code to make a truly low frequency oscillator that would take up ten times less processor... is it possible and would it be better to use asm or synthmaker syntax? have some people already made some code for oscillators that i could just put hop 128 (oscillator) cos that would be fantastic 🙂

i will make some research for code projects from others in the archives here and will see what i can see. thanks

Of course that already excists 😉 Search and you will find plenty. 🙂

datsound · 6 Sept 2010

oh my god sorry for being such a n00b!!! 🙂 i have just found your hopped lfo and also another tantalizing amazing thread on asm optimisations...

Pure SSE-alternative for Sin1() & Cos1()

Reaktor Sine function conversion....

i am falling over myself with gratitude at the amazingness of it, thankyou.

i will see if i can add in a pulsewidth modulation input for the lfo when i have made sense of the asm coding. it would be fun. i made a width function for a ramp going through sine and it chopped the ramp into 3 stages, up to .25 then to .75 thn to 0 and a multiplication speeds the ramp and slows it down in each stage it was kindof a random attempt but it ran ok.