Available now: Tone2 Nemesis 2.4
- Banned
- 10732 posts since 17 Nov, 2015
nobody is asking for secrets, or debating the "superior" fm sound
it was a simple question: what is neofm?
it has been answered as best as he can, from what I can gather.
- KVRist
- 211 posts since 2 Nov, 2017
I'm with you on this. Simple question and it not sure it requires divulging trade secrets to answer
- KVRian
- 1361 posts since 17 Jul, 2007 from Riversland Valhalla
Something like Reface DX I would assume.
Yamaha enhanced the experience of using the daunting complicated FM synthesis on those old gears with limited display screens and tweaked the circuits, to become easy to use interface-based on-fly tweak surface with more organic warm sound, oversampled DCA, minimal harsh sonic artifacts & aliasing.
Yamaha enhanced the experience of using the daunting complicated FM synthesis on those old gears with limited display screens and tweaked the circuits, to become easy to use interface-based on-fly tweak surface with more organic warm sound, oversampled DCA, minimal harsh sonic artifacts & aliasing.
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- KVRist
- 171 posts since 8 Jun, 2019
If it's linear FM, which seems likely, there's probably something extensive being done to eliminate aliasing. I can see how Markus would be reluctant to get into much detail. If he simply says, "it's linear FM with proprietary anti-aliasing", people will assume it's the same as other synths that do linear FM. He wants users to demo it instead, since the result could be quite different from Phase Plant, Fathom, Bazille, etc.jasonekratz wrote: ↑Thu May 27, 2021 3:47 pmI'm with you on this. Simple question and it not sure it requires divulging trade secrets to answer
I edited my earlier post to reflect this too.
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minijetsdonttalk minijetsdonttalk https://www.kvraudio.com/forum/memberlist.php?mode=viewprofile&u=232022
- KVRist
- 153 posts since 17 May, 2010
This is probably the best explanation of NeoFM I could find...jasonekratz wrote: ↑Thu May 27, 2021 3:47 pmI'm with you on this. Simple question and it not sure it requires divulging trade secrets to answer
"With NeoFM, users can take advantage of a much larger variety of waveforms rather than typical sine and triangle wave forms while faithfully producing FM synthesis. NeoFM is accomplished by having a Carrier oscillator and a Modulator oscillator.
In this case, the Modulator waveform is used to control the frequency of the Carrier waveform, resulting in simple to very complex sounds. Add a ton of other combinable synthesis types and these few features alone add a whole other dimension of flexibility to Nemesis."
- KVRAF
- 11093 posts since 16 Mar, 2003 from Porto - Portugal
I don't know where you did find this explanation, but it seems wrong or at least imprecise:minijetsdonttalk wrote: ↑Thu May 27, 2021 5:49 pm "With NeoFM, users can take advantage of a much larger variety of waveforms rather than typical sine and triangle wave forms while faithfully producing FM synthesis. NeoFM is accomplished by having a Carrier oscillator and a Modulator oscillator.
In this case, the Modulator waveform is used to control the frequency of the Carrier waveform, resulting in simple to very complex sounds. Add a ton of other combinable synthesis types and these few features alone add a whole other dimension of flexibility to Nemesis."
1. "NeoFM is accomplished by having a Carrier oscillator and a Modulator oscillator". yes, but that's also true of the "older" FM (which is actually PM). AND in the "older" FM, you even have more oscillators, hence more carriers and more modulators - six in the DX7.
2. "the Modulator waveform is used to control the frequency of the Carrier waveform". WRONG. If it was matter of simply "control" the frequency, we already had that with the LFO. But it a different kind of control. I wouldn't say it is used to "control" the frequency of the carrier. I'd say it is used to "modulate" the carrier through its own frequency, that way creating complex spectra. The complex spectrum is the real goal here. The base frequency of the carrier may change, in consequence, but that's not necessarily true, and usually NOT what we want (otherwise, the final sound would be out of tune, and we would need to use transpositions, which, BTW, is also true with PM).
Last edited by fmr on Thu May 27, 2021 6:44 pm, edited 2 times in total.
Fernando (FMR)
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minijetsdonttalk minijetsdonttalk https://www.kvraudio.com/forum/memberlist.php?mode=viewprofile&u=232022
- KVRist
- 153 posts since 17 May, 2010
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- KVRer
- 1 posts since 23 Oct, 2020
Brilliant random button that's exciting extra , the unsion efx will be much used this synth has a lot more to offer !! aka jono
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- KVRAF
- 3251 posts since 30 Dec, 2014
Where is the demo ?
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- KVRAF
- 8826 posts since 6 Jan, 2017 from Outer Space
There is a lot of confusion between phase modulation and frequency modulation. To read up some Chowning could help btw... Of course Chowning (think DX 7) had a reason to call it frequency modulation because it is de facto FM. The result is the same, if you have a frequency linear modulation of the phase, you get the same result as a frequency linear modulation of the frequency of an oscillator. Its just a method way easier to implement in the digital domain. If you have a modular environment like Bitwigs Grid you can experiment with that yourself.
For example, if you modulate a sine wave with a phasor (mathematically correct sawtooth going from 0 to 1) the result will be again a sine wave! If the pitch of the phasor is the same as the pitch of the sine oscillator, there is no change at all in the sound. But if they differ, you get just a different frequency but it remains as a sine... Now if you have something different than a phasor, it would change that frequency within or while its running through its waveform, kind of a very fast varispeed, which results in a distorted waveform with more harmonics...
The confusion between "real" FM, which I would call the classic we know from analog synths, is the fact, that the frequency input of an oscillator changes the frequency according to the V/Oct! That is a heavy distortion compared to a linear control. That's why analog FM sounds so different and is almost not controllable to get harmonic sounds out of it. It would face the same aliasing problems as PM if you do that in a digital emulation btw...
Doing this in the digital domain opens up controls with exact calculations. The original Chowing FM allowed to have exact ratios of the frequencies, which will result in harmonic spectra. If you do "NEO" FM you can do that as well with the frequencies as with the modulation amount. Both is crucial for getting harmonic relations in the spectrum...
For example, if you modulate a sine wave with a phasor (mathematically correct sawtooth going from 0 to 1) the result will be again a sine wave! If the pitch of the phasor is the same as the pitch of the sine oscillator, there is no change at all in the sound. But if they differ, you get just a different frequency but it remains as a sine... Now if you have something different than a phasor, it would change that frequency within or while its running through its waveform, kind of a very fast varispeed, which results in a distorted waveform with more harmonics...
The confusion between "real" FM, which I would call the classic we know from analog synths, is the fact, that the frequency input of an oscillator changes the frequency according to the V/Oct! That is a heavy distortion compared to a linear control. That's why analog FM sounds so different and is almost not controllable to get harmonic sounds out of it. It would face the same aliasing problems as PM if you do that in a digital emulation btw...
Doing this in the digital domain opens up controls with exact calculations. The original Chowing FM allowed to have exact ratios of the frequencies, which will result in harmonic spectra. If you do "NEO" FM you can do that as well with the frequencies as with the modulation amount. Both is crucial for getting harmonic relations in the spectrum...
- KVRAF
- Topic Starter
- 1748 posts since 2 Jul, 2018
- KVRAF
- 13205 posts since 16 Feb, 2005 from Kingston, Jamaica