Repro-1 (out now)

[brok landers]

filter type 3, by far... closely followed by type 2, which is kinda close, but behaves a bit weird when frequency modulated with hig pitch at cutoff close to nyquist - or better said, close to the point when it leaves the audible range at full resonance.
filter type 1 is... hmmm... interresting, but needs optimisation at full resonance at high cutoffs - it aliases (or does strange noises) all over the place.
filter types 4 and 5 did not click with me, though i cannot say, why that is. maybe simply because to me 2 and moreover 3 do sound significantly better over the whole range, with whatever resonance levels and drastic modulations...

[StarskyCarr]

The Pro-One can be exceptionally stable in filter frequency though, as are a few other Curtis based filters I've got around. However, my Pro-One goes up (!) in frequency by about 25 Cents when dialing resonance from 6 to 10. From the examples that we got sent, most were rather stable but some went down by as much as a fourth.

In my experiments, very small changes to some voltages and resistor values can have a huge effect on the dependency of frequency and resonance.

Well you learn something new everyday... time for another experiment;)

I bought the Pro-One after purchasing Wave Alchemy's Pro II - loved it so much I bought the real thing. I'll definitely be buying a Repro, big fan of U-he and a big fan of the Pro-One - resistance is futile

[themusicproducerblog]

Like Filter 4 the best. Made a small soundpack with some patches for the communty. Check em out.
This synth sounds amazing with some effects. A soundsample is on my page.
Dry it's of course a lil bit uninspiring at first.

http://www.themusicproducerblog.com/201 ... dpack.html

I wonder if there's gonna be polyphonic mode...well I hope it

[pdxindy]

I wonder if there's gonna be polyphonic mode...well I hope it

nope... monophonic only

[ATN69]

I wonder if there's gonna be polyphonic mode...well I hope it

nope... monophonic only

Just assign 7 tracks or so in your DAW and ..there you have it

[themusicproducerblog]

I wonder if there's gonna be polyphonic mode...well I hope it

nope... monophonic only

Just assign 7 tracks or so in your DAW and ..there you have it

Yeah already did it with the Roland Plugout Synths. Funny Thing is the CPU was only at 35% with 8 voices/plugins (one voice was about 25%)

[ATN69]

I wonder if there's gonna be polyphonic mode...well I hope it

nope... monophonic only

Just assign 7 tracks or so in your DAW and ..there you have it

Yeah already did it with the Roland Plugout Synths. Funny Thing is the CPU was only at 35% with 8 voices/plugins (one voice was about 25%)

Thats Amazing ..but I doubt that will be the case with RePro. She is a hungry girl

[Urs]

I wonder if there's gonna be polyphonic mode...well I hope it

Cat out of the bag: We're contemplating (read: not promising anything) the design of a polyphonic MIDI module that can host a small number of RePros. Maybe just enough to play a chord. However this idea stands or falls with the ability to provide CV input connectivity - which is a major hassle in plug-in-land. In actual fact, it might never happen, or if it happens, maybe not in the best way we would have loved to.

Nevertheless. RePro has been started as a Research Project on many levels. Apart from filter stuff we're also evaluating the move from control rate to audio rate for any modulation (-> Zebra3, Berlin Modular). Furthermore we're evaluating the move from event-based voice control (MIDI events) to audio stream based voice management (Trigger+Gate+CV), which we hope may minimise the complexity we have faced with voice management in our polyphonic synths. As such, developing a polyphonic MIDI-to-CV converter with proper voice logic is part of the research project, but not necessarily part of this product development.

We'll see...

[ATN69]

I wonder if there's gonna be polyphonic mode...well I hope it

Cat out of the bag: We're contemplating (read: not promising anything) the design of a polyphonic MIDI module that can host a small number of RePros. Maybe just enough to play a chord. However this idea stands or falls with the ability to provide CV input connectivity - which is a major hassle in plug-in-land. In actual fact, it might never happen, or if it happens, maybe not in the best way we would have loved to.

Nevertheless. RePro has been started as a Research Project on many levels. Apart from filter stuff we're also evaluating the move from control rate to audio rate for any modulation (-> Zebra3, Berlin Modular). Furthermore we're evaluating the move from event-based voice control (MIDI events) to audio stream based voice management (Trigger+Gate+CV), which we hope may minimise the complexity we have faced with voice management in our polyphonic synths. As such, developing a polyphonic MIDI-to-CV converter with proper voice logic is part of the research project, but not necessarily part of this product development.

We'll see...

I been looking for something like RePro and I found a few interesting mono synths but Nothing as sexy as this one. So I sure hope it will be developed, packed and ready for sale in the future. But a less CPU hungry version of course

[Urs]

a less CPU hungry version of course

It'll be much less CPU hungry - I can promise that

[Nokenoku]

Can you tell us, how much difference there is between the CPU drain of the different filter-models?

Does the heaviest need twice as much as the next one, or are they rather close?

[Urs]

Can you tell us, how much difference there is between the CPU drain of the different filter-models?

Does the heaviest need twice as much as the next one, or are they rather close?

I can not say yet. There's a lot of tweaking potential left in there, I'm confident we'll get it down dramatically from what it is right now. Before the switchable filter we have now I did an optimised version of the most expensive one in a test project. With that I could play 16 voice polyphonic on a single core without a problem, but there were some changes later on.

Thing is, this filter needs only about half the number of non-linear calculations as opposed to a ladder filter, but those computations themselves are a tad more expensive and require a bit more oversampling. Which in total I think is still faster than calculating a Moog filter at same quality.

[zerocrossing]

OK. I think it's time to hear the results. Which filter was the most expensive? Which the cheapest?

[Urs]

OK. I think it's time to hear the results. Which filter was the most expensive? Which the cheapest?

I can't just tell. I need to explain. It'll be a loooong post, possibly to be conceived during a weekend shift.

[moscom_electronics]

Cat out of the bag: We're contemplating (read: not promising anything) the design of a polyphonic MIDI module that can host a small number of RePros. Maybe just enough to play a chord. However this idea stands or falls with the ability to provide CV input connectivity - which is a major hassle in plug-in-land. In actual fact, it might never happen, or if it happens, maybe not in the best way we would have loved to.

Nevertheless. RePro has been started as a Research Project on many levels. Apart from filter stuff we're also evaluating the move from control rate to audio rate for any modulation (-> Zebra3, Berlin Modular). Furthermore we're evaluating the move from event-based voice control (MIDI events) to audio stream based voice management (Trigger+Gate+CV), which we hope may minimise the complexity we have faced with voice management in our polyphonic synths. As such, developing a polyphonic MIDI-to-CV converter with proper voice logic is part of the research project, but not necessarily part of this product development.

We'll see...

I am confused here. Do you mean you are thinking about developping a sort of software rack where we could load many instances of RePro at once and play them like a polyphonic keyboard? A sort of Oberheim 4-Voice based on RePro?

and about this switch from MIDI events to Trigger+Gate+CV, how would that work in a DAW? just curious, I have no idea how this could be feasible. Or Am I lost and you are thinking about a piece of hardware?