[Repro-1] Released!
- KVRAF
- 4633 posts since 21 Jan, 2008 from oO
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- KVRist
- 83 posts since 11 Jan, 2017
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- KVRist
- 100 posts since 4 Feb, 2016
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- KVRer
- 25 posts since 22 May, 2013
Based on the video poster by @lentferj, the square wave in repro-1 lacks the depth of the original. Is u-he aware of this and planing to improve this part? There a few areas where the repro-1 sounds brighter too.
Last edited by oli67 on Thu Apr 06, 2017 4:27 pm, edited 1 time in total.
- KVRAF
- 23077 posts since 7 Jan, 2009 from Croatia
Certainly doesn't lack depth as every Pro-One is a bit different from each other.
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- KVRer
- 25 posts since 22 May, 2013
well, in the case of the square wave the difference is very noticeable and not to the advantage of the repro-1, I doubt this is a difference that can be attributed to a variation between models.EvilDragon wrote:Certainly doesn't lack depth as every Pro-One is a bit different from each other.
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david.beholder david.beholder https://www.kvraudio.com/forum/memberlist.php?mode=viewprofile&u=159839
- KVRAF
- 1865 posts since 13 Sep, 2007
Actually this comment lacks deptholi67 wrote:Based on the video poster by @lentferj, the square wave in repro-1 lacks the depth of the original. Is u-he aware of this and planing to improve this part? There a few areas where the repro-1 sounds brighter too.
Murderous duck!
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- KVRAF
- 2292 posts since 11 Jan, 2009 from Portland, OR, USA
oli67 wrote:Based on the video poster by @lentferj, the square wave in repro-1 lacks the depth of the original. Is u-he aware of this and planing to improve this part? There a few areas where the repro-1 sounds brighter too.
This is the era we live in, conclusions asserted re: vintage hardware and modern synths based on effin' Youtube Videos.
He was probably listening on laptop speakers, too
Anyway, moving along.
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- KVRist
- 103 posts since 30 Jul, 2014
If you're talking about the direct comparison around 3:50, I believe what you're hearing is attributable to a difference in duty cycle. Repro-1, being a digital synth, is able to hit that 50% duty cycle precisely, whereas the analog original sounds to be slightly off from a 50% pulse until the guy tweaks it around 4:30, at which point the timbre sounds extremely similar to my ear. Repro-1 is lacking nothing in depth; the raw square is certainly a tad brighter than his Pro-1. Good thing the filter is nice...oli67 wrote:Based on the video poster by @lentferj, the square wave in repro-1 lacks the depth of the original. Is u-he aware of this and planing to improve this part? There a few areas where the repro-1 sounds brighter too.
- u-he
- Topic Starter
- 28042 posts since 8 Aug, 2002 from Berlin
Go to tweaks tab, switch Oscillator modules from "ideal" to "P1", set PW to, say, 52% (as it's practically impossible to set a perfect square on a hardware with cheap pots), there you go.oli67 wrote:Based on the video poster by @lentferj, the square wave in repro-1 lacks the depth of the original. Is u-he aware of this and planing to improve this part? There a few areas where the repro-1 sounds brighter too.
In any case though, we are aware that every Pro-One sounds slightly differently. There is however no way we're going to chase up after every demo on the internet and tweak our algorithms.
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- KVRer
- 25 posts since 22 May, 2013
Yep, I think you're right. Indeed at 4:30 things get much closer. Thanks for posting a constructive comment.btw wrote: If you're talking about the direct comparison around 3:50, I believe what you're hearing is attributable to a difference in duty cycle. Repro-1, being a digital synth, is able to hit that 50% duty cycle precisely, whereas the analog original sounds to be slightly off from a 50% pulse until the guy tweaks it around 4:30, at which point the timbre sounds extremely similar to my ear. Repro-1 is lacking nothing in depth; the raw square is certainly a tad brighter than his Pro-1. Good thing the filter is nice...
Yes sure, and we perfectly understand that. I was struck by the difference at 3:50 but that is explained by the difference in calibration so it's all fine, thanks!Urs wrote:In any case though, we are aware that every Pro-One sounds slightly differently. There is however no way we're going to chase up after every demo on the internet and tweak our algorithms.
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- KVRist
- 70 posts since 31 Jul, 2016
oli67 wrote:well, in the case of the square wave the difference is very noticeable and not to the advantage of the repro-1, I doubt this is a difference that can be attributed to a variation between models.EvilDragon wrote:Certainly doesn't lack depth as every Pro-One is a bit different from each other.
Okay, I watched the video. Great job on repro-1 by the way.
Square waves don't have even harmonics, yet the "square" wave from the hardware pro-1 had a bunch of them.
The reason(s) for this should be pretty obvious - either the individual driving the pro-1 in the video had the pulse width slightly off center, or after 40-something years the pro-1 has drifted out of calibration, and that "square" wave isn't perfectly square anymore. Or both.
It's not a bug or shortcoming in repro-1. Just turn the pulse width on repro-1 to somewhere between 48 and 49 (or 51 to 52 if you prefer) and you'll get some even harmonics and the deeper tone that goes with them.
Edit - Lots of people beat me to it
- u-he
- Topic Starter
- 28042 posts since 8 Aug, 2002 from Berlin
On both our Pro-Ones it's actually impossible to get a true square wave. The falling edge has a slight slope. This can also be observed with other synths using the same VCO chip. IIRC the ideal preset in Repro doesn't have it but the P1 one does.
- KVRist
- 53 posts since 22 Feb, 2017 from Australia
I am enjoying the squelchyness of repro-1!
Any chance of seeing a few more 'perform' modulators in the future? The current ones are certainly functional but I always fill them up and find I want a few more to achieve the sounds in my head.
Any chance of seeing a few more 'perform' modulators in the future? The current ones are certainly functional but I always fill them up and find I want a few more to achieve the sounds in my head.
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- KVRist
- 455 posts since 16 May, 2012 from Antwerp
I remember how all resistors could be bought in 10%, 5% and 2% versions. So a, say, 100kOhm could be 90 or 110 for the 10% version. Not even talking about capacitors and transistors.
Those were the analog days, not the zero and one days....
I had a Roland System 100, basic module and expander. Whatever you criticise about Repro-1, know that in 'those' days, this synth would have been a real shock. Build on the past, but don't idealise it.
I was not going to buy any more synths as I found I had enough ( Zebra, Bazille and some others). But, well,... I am very impressed, really. Congrats!
Those were the analog days, not the zero and one days....
I had a Roland System 100, basic module and expander. Whatever you criticise about Repro-1, know that in 'those' days, this synth would have been a real shock. Build on the past, but don't idealise it.
I was not going to buy any more synths as I found I had enough ( Zebra, Bazille and some others). But, well,... I am very impressed, really. Congrats!
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