Feature Request for Prophet 12

The Dave Smith Instruments Prophet-12 Analogue Synthesizer

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Rokatansky
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Re: Feature Request for Prophet 12

Post by Rokatansky » Thu Nov 27, 2014 12:08 am

Supersaw.

mekohler
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Re: Feature Request for Prophet 12

Post by mekohler » Thu Nov 27, 2014 2:31 am

1. More clock settings for Arp (1/4 triplet, for example)

2. Allow modulation of more destinations (Arp speed, for example)

3. Add option in global for "Make current patch default patch", to replace the default patch that shows up when you Latch + Hold

4. In the modulation matrix, I think the right empty soft button (next to Sort Dest) could be a "reset" for the currently selected mod

5. Allow selection of voices between "one" and "ALL"...ALL is way too much most of the time. I would like to be able to select 2 or 3

6. Sequencer :D

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Mantrak
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Re: Feature Request for Prophet 12

Post by Mantrak » Wed Dec 17, 2014 5:16 pm

My humble wish is to be able to hack into P12 software myself. I doubt it would be even possible without DSI help, perhaps documenting some parts, giving some clues... Of course going OPEN SOURCE would be wonderful. I think it would give P12 whole new value.

I tried to think of any risk or dissadvantage for DSI going open and I could not come up with any. P12 is ideal platform for going crazy with innovative software features. So I am quite convinced it is the other way around, going open would be a huge advantage for DSI.
"There is no such thing as a bad synth".

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Mr Kay
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Re: Feature Request for Prophet 12

Post by Mr Kay » Sat Dec 20, 2014 10:26 am

Adding on the sequencer the possibility to make last a note on several steps would be cool :)

garynotgary
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Re: Feature Request for Prophet 12

Post by garynotgary » Sun Dec 28, 2014 7:45 pm

RobbaSvenna wrote:I would like to request Slop as a Mod Source. In my mind it would be a really cool feature... ;)
This can be accomplished with the random LFO with a low frequency and a generous amount of slew.

mekohler
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Re: Feature Request for Prophet 12

Post by mekohler » Sat Jan 10, 2015 5:54 pm

More Arp Modes: Leap, Up+Down with ends repeated, etc...

Kermit
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Re: Feature Request for Prophet 12

Post by Kermit » Sat Jan 10, 2015 7:55 pm

Still hoping for the LFOs to sync better, to midi clock and internal clock.
Make the arpeggiator keep the selected tempo/bpm when having cpu demanding patches and playing more
than 2 notes at the same time.

The overall midisync could be improved a lot.

That would be awesome.

tommygee
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Re: Feature Request for Prophet 12

Post by tommygee » Fri Mar 06, 2015 7:44 pm

I think these have been mentioned before, but anyway. I would love to see:

Modulation values much higher than 127 - it's a mystery to me why max values where set that low
Possibility of changing patches and parameters while local control is off
Slop modulation for each oscillator
"Super" Waveforms like Pro 2
More advanced functions of the sequencer
Arpeggiator as modulation source/destination

Otherwise i love this beast - it's a beast of a synth :-)

nikwal
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Re: Feature Request for Prophet 12

Post by nikwal » Mon Mar 09, 2015 6:13 pm

+1 for more unison modes..
Last edited by nikwal on Tue Mar 31, 2015 8:12 pm, edited 2 times in total.

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Tomavatars
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Re: Feature Request for Prophet 12

Post by Tomavatars » Tue Mar 10, 2015 3:27 pm

Please !

- An option to allow more than max 13 semitones values using enveloppes.

c3dw
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Re: Feature Request for Prophet 12

Post by c3dw » Wed Mar 11, 2015 12:09 am

Because of the Prophet 6, the more recent Pro-2, and the more riddled Tempest, I think we may be waiting a very long time for an update/new features.

tommygee
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Re: Feature Request for Prophet 12

Post by tommygee » Sat Mar 21, 2015 2:12 pm

One thing more: Parameter Sequencing would be amazing !!!!!!!

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Mr Kay
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Re: Feature Request for Prophet 12

Post by Mr Kay » Wed Apr 29, 2015 7:04 pm

So a little recap with one more thing

- the original triangle back as an extra waveshape
- the "super saw" as on the Pro-2
- Filter enveloppe sustain as destination in the mod matrix
- individual oscillator slop as destination in the mod matrix
- an "curve shape" parameter for the enveloppes
- an extra bucket brigade mode on the delay lines
- alternative tunings

rts
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Tuned Delay Lines

Post by rts » Sat May 02, 2015 9:13 pm

I noticed, that the Delay lines are polyphonic. Each voice has its own delay, in principal it is possible to realize Karpus Strong sounds, if you can try to tune them like:

Note Number > -26 > Delay1 Time

However these sounds are always out of tune, because this Modulation is linear.
My Change request: An exponential modulation destination here (like VCF or VCOs) would help.

yewtreemagic
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Re: Feature Request for Prophet 12

Post by yewtreemagic » Sun May 10, 2015 2:33 pm

REQUEST: A new mod source named Limit that can be routed with an Amount of typically between 140 to 152 to LPF Cutoff Frequency

...to prevent the cutoff ever exceeding this limit, thus forcing the filters to remain within their sweet spot when required, whatever the combination of modulation sources.

As discussed in some depth across all these threads:
viewtopic.php?f=27&t=6888#p62239
viewtopic.php?f=27&t=6925
viewtopic.php?f=27&t=6919&start=20#p62565
viewtopic.php?f=27&t=6755#p60992
viewtopic.php?f=27&t=5587#p47302 (in this one the suggestion is from DSI's Chris Hector himself! :wink:)
Last edited by yewtreemagic on Sun May 10, 2015 7:56 pm, edited 1 time in total.

RobbaSvenna
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Re: Feature Request for Prophet 12

Post by RobbaSvenna » Sun May 10, 2015 4:12 pm

+1 for a limit to the filter!

zerocrossing
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Re: Feature Request for Prophet 12

Post by zerocrossing » Sun May 10, 2015 10:20 pm

yewtreemagic wrote:REQUEST: A new mod source named Limit that can be routed with an Amount of typically between 140 to 152 to LPF Cutoff Frequency

...to prevent the cutoff ever exceeding this limit, thus forcing the filters to remain within their sweet spot when required, whatever the combination of modulation sources.

As discussed in some depth across all these threads:
viewtopic.php?f=27&t=6888#p62239
viewtopic.php?f=27&t=6925
viewtopic.php?f=27&t=6919&start=20#p62565
viewtopic.php?f=27&t=6755#p60992
viewtopic.php?f=27&t=5587#p47302 (in this one the suggestion is from DSI's Chris Hector himself! :wink:)
Or, I have an even better idea! Fix the sawtooth and pulse wave oscillators! :? All the rest of the waveforms sound great. I feel like I'm taking crazy pills... or is the problem that those waveforms can not be good based on other factors in the design? If that's the case, well then sure, I'll take the cutoff limit I guess.
You can't make every one happy, but you can make everyone miserable!

oldgearguy
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Re: Feature Request for Prophet 12

Post by oldgearguy » Mon May 11, 2015 10:12 am

zerocrossing wrote:
yewtreemagic wrote:REQUEST: A new mod source named Limit that can be routed with an Amount of typically between 140 to 152 to LPF Cutoff Frequency

...to prevent the cutoff ever exceeding this limit, thus forcing the filters to remain within their sweet spot when required, whatever the combination of modulation sources.

As discussed in some depth across all these threads:
viewtopic.php?f=27&t=6888#p62239
viewtopic.php?f=27&t=6925
viewtopic.php?f=27&t=6919&start=20#p62565
viewtopic.php?f=27&t=6755#p60992
viewtopic.php?f=27&t=5587#p47302 (in this one the suggestion is from DSI's Chris Hector himself! :wink:)
Or, I have an even better idea! Fix the sawtooth and pulse wave oscillators! :? All the rest of the waveforms sound great. I feel like I'm taking crazy pills... or is the problem that those waveforms can not be good based on other factors in the design? If that's the case, well then sure, I'll take the cutoff limit I guess.
Because those particular waveforms have sudden transitions from min to max, they exhibit the worst artifacts with the filter wide open. That doesn't mean they are the only ones, it just means that they are the most obvious. Carson already stated elsewhere that DSI won't be changing any waveforms, so that's a dead end. However, asking for a user settable filter max have not been shut down (yet), so that avenue is worth pursuing.

After much thought, I would *not* want it implemented as a Mod route because it takes up a mod route slot.
It's also probably more efficient to put it in with the other LP filter parameters.

In the source, it's likely that the magic "164" is implemented as a #define, a global constant, or a hardcoded 164 in various places.
In any case, to change that to a variable stored with the patch would not be that difficult. You'd have to do a search and replace and then run some tests to make sure you got them all.

As far as patch compatibility, if they did something like this (pseudo-code), they should be OK:

receive_sysex();
parse_out_data();
// 128 equals original size of patch dump - made up for this example
if (sizeof(data) == 128) {
then set filter_max = 164;
assign_v1_data_values();
} else {
assign_v2_data_values();
}

This would preserve the current behavior of existing patches and modulations while allowing new patch dumps and restores to maintain the user settable value.

cbmd
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Re: Feature Request for Prophet 12

Post by cbmd » Mon May 11, 2015 8:33 pm

We will not be making any changes that would affect voicing nor change the overall operation of the synth. If you want to limit the max frequency of the filter cutoff, use a DC offset in the mod matrix. You could also perform filter sweeps using a slider, or you could just not turn the filter up all the way.
Carson Day
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Dave Smith Instruments

oldgearguy
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Re: Feature Request for Prophet 12

Post by oldgearguy » Mon May 11, 2015 10:08 pm

cbmd wrote:We will not be making any changes that would affect voicing nor change the overall operation of the synth. If you want to limit the max frequency of the filter cutoff, use a DC offset in the mod matrix. You could also perform filter sweeps using a slider, or you could just not turn the filter up all the way.
So if I have multiple modulations affecting the cutoff (say filter envelope and LFO to start) how would I apply a DC offset in the Modulation Matrix so that the cutoff ranged from 0 to 140? Does this mean there is a future plan to incorporate math/scaling type functionality in the mod matrix similar to the Emu stuff?

(legitimately curious here, because if there is an answer I will be happy to incorporate it)

Tom

PS - implementing a user settable cutoff per patch would not affect current voicing at all since if it's OS 1.2.0 or earlier, the default would be 164.

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