[hint] sample accurate modulation control

at0m · Post by **at0m** » Thu Dec 05, 2002 1:00 pm

Hi,

A while ago I was annoyed w the fact that LFO's are not phase related to a song or runaway from other modulation.

I also was looking for new ways to use analog signals or audio volume/CV to control.

Try to draw some waveforms in a sample editor, ie. a 0.2 Hz saw, one full cycle. This signal is totally unuseable for audio, but you just got yourself a 32bit modulation control that is fully controllable from the sequencer and runs sample accurante.

Send the 0.2Hz saw thru your mixer and into a modular. Connect it to for example filter modulation cutoff, or any other modulation input.

Do not monitor this 0.2Hz saw! Edit it's ADSR in sampler, draw more custom waveforms etc.

Next example project is very simple. It gets way more interesting if you resample the right channel

I hope it brings you inspiration.

/at0mic.

<font size=-1>[ This Message was edited by: at0mic on 2002-12-15 23:54 ]</font>

j9k · Post by **j9k** » Thu Dec 05, 2002 8:27 pm

use volume automation with a fully clipped sound file looped to use logics automation and the asio outputs.

to convert to a bipolar signal

or you can build your own with a three input mixer. one of the inputs would be connected to consant val bipolar mdl and the other two inputs would recieve the modulation signal.

no preset parameters required. sounds like a new modular mdl

j9k

at0m · Post by **at0m** » Fri Dec 06, 2002 7:54 am

Hi,

Last night I tried something different -to me. Using the 'Mod8-8 IO'. Assigned 8 ASIO ports to it, for one stereo audio channel. And 6 modulation signals.

The modulation signals were made in a sample editor. Made a bunch of basic waveforms, drew some lines, chopped some up. From the beginning, I kept the mod. signals at 1 or a couple cycles of a wave, very low frequency.

Loaded one stereo loop into fruity, sent thru modular8-8, and in there it passed thru filters w mod inputs, to the one stereo output.

Then loaded the different mod. signal wav's (mono) into Fruity, sequenced & resampled them. Send them out to the 3-8 inputs from mod8-8 and routed them to the filter mod inputs. Why Fruity: cos it has stretch to 'n' notes for each sample. Makes any modulation loop, from 10 samples to 10 seconds instant fun. Fruity isn't even a 'real sampler, which could do much more. Modulated modulation

A custom waveform played from the sequencer can modulate in perfect sync with the song. No more hassle about MIDI, it's 14bits or bad timing. Sample sample precision modulation. Try it, it's huge fun. Draw your mod for a filter freq. I took filter as simple example, to test everything.

Tomorrow's project: playing w miniature loops (waveforms?) representing such mod lines. As small as possible. Opposite from today.

Gonna get some sleep soon, it's been a long time.

Thanks to Assaf from Orbitone, for giving the hints that lead to this. I hope you like some of it.

[edit] This is way more precise than MIDI could ever be.
at0m.

_________________
at0mic agency

<font size=-1>[ This Message was edited by: at0mic on 2002-12-06 08:38 ]</font>

fra77x · Post by **fra77x** » Fri Dec 06, 2002 9:57 am

Very very interesting... last night i was using the modular to apply fx and mess with my signals and had a great time...but i haven't though the audio-modulation signal idea.. what i 'm gonna do tonight: connect reactor-modular-cubase in a unique on earth combination!!!

massusen · Post by **massusen** » Tue Dec 10, 2002 10:49 am

Hi,

Really interesting thread. Got me thinking. How to build a Sampleplayer within the Modular that plays a given modulationsample
at a pitch that is equivalent to- say a bar- in the specified tempo? If you do the modulationsamples in sizes of 16, 32, 64, 128, ... bits then the scale they work along will be a logaritmic series.

But how to do it? How to make the duration of the sample fit the specified tempo? Just twiddling with the pitch on the sampleplayer module will be horrible. A multiplier is needed - on which multiplies along the logaritmic series and that acoount the specified tempo.

Any ideas on how to build this?

M

at0m · Post by **at0m** » Tue Dec 10, 2002 5:28 pm

For now, I make mod waves in Soundforge at at about the scale it's going to be used. Sines, triangles, DC lines,...

In Fruity it's very easy to time stretch loops, but this does waste ASIO channels. Good idea, to trigger the loops inside Mod, but then you loose the 'sample accuracy'.

I'm gonna try to use Fruity's Formula thing, and write my own modulations.

I upped a lousy SFP project and mod, Fruity loop and some wavs. It's way too big (1.8MB) for it's demo capabilities and doesn't even sound great. Download here. It may get you started. Start tweaking those ADSR params!

Have fun!