I figured out how to patch EXi1 to EXi2 inside a single prog

[sirCombatWombat]

At last!

Here is how it works,

I noticed that both EXi's have separate sends to Master effects 1 & 2, I can't believe I have missed this as I really have been looking. The rest is simple, just send EXi1 to MFX1, set MFX1 to Stereo Limiter with 1:1 ratio and gain adjust 0. And set MFX1 return to 0 in the Routing tab. Then in EXi Audio Input tab, set EXi2 input source to MFX1. That's it.

The one thing I noticed is that the MFX block the signal if set to 000: No Effect, turning the effect on or off has no effect. I think it would be convenient if the "000: No Effect" would pass the signal through unaffected.

[sirCombatWombat]

The implications of this discovery are beginning to hit me, now it is much easier to program components for a big modular combi.

I have dreamt of owning a Buchla, now I'm not so sure if I need one anymore. Only time will tell.

[danatkorg]

Clever!

[Grapite]

nice going, more to explore, thanks!
regards

[Mike Conway]

I noticed that both EXi's have separate sends to Master effects 1 & 2, I can't believe I have missed this as I really have been looking.

You didn't watch the Sample to Program tutorial on the DVD?

Seriously, this is a great post. I have been wondering why the engineers didn't just allow EXi 1 or EXi 2 as a source input. Would be a cool implementation.

[danatkorg]

I have been wondering why the engineers didn't just allow EXi 1 or EXi 2 as a source input. Would be a cool implementation.

I understand that direct access to the individual EXis would be cool!

As to why it works this way: we used the main bussing system for the EXi audio input, and the signals for individual EXi or Osc (or even Programs, for that matter) aren't available there. Changes could have been made, of course, but it wouldn't necessarily have been trivial to do.

- Dan

[Kevin Nolan]

The implications of this discovery are beginning to hit me, now it is much easier to program components for a big modular combi.

I have dreamt of owning a Buchla, now I'm not so sure if I need one anymore. Only time will tell.

Could you explain actaully what you're about, what those implications are and what all of this provided in terms of new capability. I'm not following your implied excitement in the slightest.

Thanks,
Kevin.

[Mike Conway]

Could you explain actaully what you're (excited) about, what those implications are and what all of this provided in terms of new capability. I'm not following your implied excitement in the slightest.

The implications are that you could use filters from both EXis on the input signal, so you could have 48db filter cutoff, mixed filters and synths.

Though this could be easily routed in a Combi, you don't have the advantage of staying in Edit Mode, so it has to be pre-planned. In a Program, you can just tweak and tweak, hearing your changes immediately.

Here is how it works,

I noticed that both EXi's have separate sends to Master effects 1 & 2, I can't believe I have missed this as I really have been looking. The rest is simple, just send EXi1 to MFX1, set MFX1 to Stereo Limiter with 1:1 ratio and gain adjust 0. And set MFX1 return to 0 in the Routing tab. Then in EXi Audio Input tab, set EXi2 input source to MFX1. That's it.

The one thing I noticed is that the MFX block the signal if set to 000: No Effect, turning the effect on or off has no effect. I think it would be convenient if the "000: No Effect" would pass the signal through unaffected.

sirCombatWombat, I think you left out one step - on the IFX TAB, turn BUS SELECT to OFF. This will get rid of the dry signals. I'm guessing you did this.

The idea is that Master Effects go through the Total Effects, which are the last chain to L/R, so you don't need L/R on in the osc bus. A compressor or limiter will give you that "dry" signal, but you can use any effect you want, if you want to actually add an effect to that first osc.

Again, this is a remarkable post.

[Kevin Nolan]

Hi Mike -

Thanks for your reply. So - flexible filters - is that it?

sirCombatWombat - why do you now not need to buy a buchula modular synth? There are many OASYS non-synthesis experts who could do with an explanation.

Cheers,
Kevin.

[danatkorg]

Hi Mike -
Thanks for your reply. So - flexible filters - is that it?

There are many other possibilities. Look into what the MOD-7, MS-20EX, and STR-1 can do with live audio input - they all have different capabilities!

MOD-7: use audio input as an FM modulator, and process it through one or more waveshapers, ring modulators, and filters, using envelopes, LFOs, step sequencer for modulation

MS-20EX: use the ESP to generate control signals from the audio's volume and pitch; also process through the filters of course, but with the added bonus of modulating the filters at audio rates with the input audio

STR-1: use the audio as the excitation for the string (and process through filters too, of course)

- Dan

[sirCombatWombat]

Thanks Dan, Mike!

Clever!

That means a lot coming from you Dan!

sirCombatWombat, I think you left out one step - on the IFX TAB, turn BUS SELECT to OFF. This will get rid of the dry signals. I'm guessing you did this.

I did, I forgot that from the description, thank you. Also the EXi2 has to be sent to the MFX2, and MFX2 return turned up.
What I haven't figured out is how to get the IFX in to the loop, but in combi mode this is not a problem so it doesn't matter that much.

There are many other possibilities. Look into what the MOD-7, MS-20EX, and STR-1 can do with live audio input - they all have different capabilities!

MOD-7: use audio input as an FM modulator, and process it through one or more waveshapers, ring modulators, and filters, using envelopes, LFOs, step sequencer for modulation

MS-20EX: use the ESP to generate control signals from the audio's volume and pitch; also process through the filters of course, but with the added bonus of modulating the filters at audio rates with the input audio

STR-1: use the audio as the excitation for the string (and process through filters too, of course)

Also the MOD-7 is very cool modulation source! I played with the Waveshapers set to LFO frequencies and fed them to MS-20EX LPF cutoff freq. that is set to self oscillate. Very fun!

sirCombatWombat - why do you now not need to buy a buchula modular synth? There are many OASYS non-synthesis experts who could do with an explanation.

I think this thread is beginning to expand on that, so tag along. Of course the Buchla is vast and very complicated instrument, but I feel that I'm getting features from the OASYS that tread very much on Buchla territory, that's why the comparison.

[Kevin Nolan]

Thanks for your posts - very informative and very exciting. Well done sircombatwombat - it's like you've delivered a new significant OS feature to OASYSA users. Very much looking forward to harnessing this - thanks a million.

Anyone have any thoughts on what 48db/octave filter can deliver? I know that the beloved Roland VP330 Choral sound houses a 52 db/octave filter, but I don't know how critical that it to the extraordinary success of that sound. But surely 48 db/octave filtering of AL-1, Polysix and MS20 voices is going to be something special?

Kevin.

[jg::]

Nice work, sirCombat.

It would also be nice to hear some of the patches that have resulted from this discovery. Even if they're somewhat experimental....

jg::

[danatkorg]

Anyone have any thoughts on what 48db/octave filter can deliver? I know that the beloved Roland VP330 Choral sound houses a 52 db/octave filter, but I don't know how critical that it to the extraordinary success of that sound. But surely 48 db/octave filtering of AL-1, Polysix and MS20 voices is going to be something special?

Kevin.

If more filtering is what you're looking for, you can do this with effects as well. As mentioned above, I don't think this the most interesting aspect of using EXi inputs (though it does give you the opportunity to use *different* filters, such as the MS-20EX's gritty filters on an STR-1 sound...).

Note that all of these connections will work best if you treat them as being monophonic, since there's no way to route individual voices - only busses.

[danatkorg]

I just tried this, and noticed a caveat: you'll still hear EXi1's "dry" output signal, as well.

If you want to hear only the output of the second EXi, I think you'll need to use Combi or Sequencer modes, in which the bus routing is more flexible.

- Dan