Wavetable oscillators

moom · Posted: Thu Jun 22, 2006 9:47 am Post subject: Wavetable oscillators

Yeah, Wave table oscillators or smaple based ones - like the Virus TI or V-synth type thing.

I am not a tech head so if anyone knows of any sample based oscillation that you can create with the G2X that gets saved with the patch (not just an audio in function), that would be awesome.

cebec · Posted: Thu Jun 22, 2006 4:50 pm Post subject:

you can create wavetables in a variety of ways, currently. do a search in the patch archive. one way is to clock a pattern generator at audio rate... maybe add a touch of glide to the output to taste. that's what i do, anyway.

ian-s · Posted: Thu Jun 22, 2006 6:54 pm Post subject:

Another approach might be to re-synthesize the waveforms by using a bank of sines. Like in the attached patch.
This attempts to create the sound character without actually using stepped waves.
All I need now is a FFT of some real PPG tables Laughing

pp-g2.pch2

Description:

wavetable-esq

Download (listen)

Filename:

pp-g2.pch2

Filesize:

6.93 KB

Downloaded:

1960 Time(s)

moom · Posted: Thu Jun 22, 2006 11:54 pm Post subject:

Excellent - thanks.

I am a newbie to the modular (about 2weeks) and exchanged my VirusTI Polar for a G2X - I have yet to unleash the capabilities of the modular for myself. Athough I have downloaded a few patches already and was shocked at t he sheer versatility of the thing - made me happy about the swap!

I'll try these out and see what I get. Nice.

celadine · Joined: Jul 11, 2006 Posts: 5 Location: unknown dimensions

If Nord is listening:
Any wavetable implementation wouldn't have to sound perfect - part of the sonic charm of the PPG Wave and Prophet VS is the low bit depth and short tables. (64 8-bit word half-tables for wave, 12-bit word tables for VS) In other words, the amount of memory used to store them can be quite small - perhaps even part of patch memory.

Of course, a module that allows wavetables can also be used for creative wave shaping, even casio CZ-type oscillators. grungy sound = good!

mosc · Posted: Fri Jul 14, 2006 9:48 pm Post subject:

celadine

Another approach is to your some Control Sequencer Modules. If all you need is 64 words, that's just 4 of them. Depending on the waveforum of the control input, you can get random access too, not just sequencial like you'd get from a counter.

celadine · Joined: Jul 11, 2006 Posts: 5 Location: unknown dimensions

Since this is a wish list, I just wish for an easier way to implement wavetables on the mod2 to do Korg Wavestation-type stuff (wave sequencing, 'vector synthesis'). Even a limited wavetable implementation to get 'PPG Wave' two-oscillator wavetable sweeps would be cool.

The various workarounds and hacks(I mean this in a good way) to get wavetables on the mod2 are very wonderful and creative, but more than 2 wavetable oscillators at once may be stretching things.

I know the Korg legacy et. al. are out there, but the latency....

BobTheDog · Posted: Sun Jul 23, 2006 8:31 am Post subject: