Fathom Development Update

VST, AU, AAX, etc. plug-in Virtual Instruments discussion
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Scrubbing Monkeys
KVRian
612 posts since 21 Apr, 2017 from Bahia, Brazil

Post Thu Feb 22, 2018 12:10 pm

RPH wrote:
@Scrubbing Monkeys: Nice video, and funny to hear the crickets in the background adding to the atmosphere of the vid. ;)
.

Thanks Rob,

No doubt there will be many more creatures in the future. It gets pretty wild out here sometimes. I have committed to leaving them in.

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tonedef71
KVRian
921 posts since 21 Sep, 2007 from USA

Re: Fathom Version 2.7 CPU Performance Upgrade

Post Thu Feb 22, 2018 12:21 pm

Scrubbing Monkeys wrote:
RPH wrote:
@Scrubbing Monkeys: Nice video, and funny to hear the crickets in the background adding to the atmosphere of the vid. ;)
.

Thanks Rob,

No doubt there will be many more creatures in the future. It gets pretty wild out here sometimes. I have committed to leaving them in.
If you can obtain a digital sample of those crickets, you will discover that a cricket's chirps make interesting wave tables. The drone of a cicada also makes for cool wave tables.
[Intel Core i7 8700 | 32GB DDR4 | Waveform 9; Studio One 4 Pro; FL Studio 20; RapidComposer; Sundog Song Studio; Orb Composer; Pizzicato | FL Studio ASIO (WASAPI) | Win10 x64]

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Scrubbing Monkeys
KVRian
612 posts since 21 Apr, 2017 from Bahia, Brazil

Re: Fathom Version 2.7 CPU Performance Upgrade

Post Thu Feb 22, 2018 2:21 pm


That was really cool. Was everything but the drums fathom?

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Scrubbing Monkeys
KVRian
612 posts since 21 Apr, 2017 from Bahia, Brazil

Re: Fathom Version 2.7 CPU Performance Upgrade

Post Thu Feb 22, 2018 2:25 pm

tonedef71 wrote: If you can obtain a digital sample of those crickets, you will discover that a cricket's chirps make interesting wave tables. The drone of a cicada also makes for cool wave tables.
Ill try that out. I imagine cicadas would be cool too. They get so loud here it hurts.

FathomSynth
KVRian
911 posts since 25 Mar, 2017 from Philadelphia, PA, USA

Re: Fathom New EDM Demo Song and Tutorial Video

Post Thu Feb 22, 2018 2:27 pm

Yes everything is Fathom except the drum track.

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tonedef71
KVRian
921 posts since 21 Sep, 2007 from USA

Re: Fathom Version 2.7 CPU Performance Upgrade

Post Thu Feb 22, 2018 3:04 pm

Scrubbing Monkeys wrote:
tonedef71 wrote: If you can obtain a digital sample of those crickets, you will discover that a cricket's chirps make interesting wave tables. The drone of a cicada also makes for cool wave tables.
Ill try that out. I imagine cicadas would be cool too. They get so loud here it hurts.
Inspiration can come from just about anywhere. Globetrotting producer, Ross Lara, recorded his own Foley sounds while traveling and edited them with iZotope BreakTweaker to create some interesting sounds.

https://www.youtube.com/watch?v=CbYkd75WGkY

By the way, BreakTweaker and Iris 2 come with several wave table chains that I bet could be extracted and re-purposed for use in Fathom.
[Intel Core i7 8700 | 32GB DDR4 | Waveform 9; Studio One 4 Pro; FL Studio 20; RapidComposer; Sundog Song Studio; Orb Composer; Pizzicato | FL Studio ASIO (WASAPI) | Win10 x64]

brewt
KVRist
190 posts since 9 Jul, 2004

Re: Fathom New EDM Demo Song and Tutorial Video

Post Thu Feb 22, 2018 4:32 pm

Fathom keeps improving. Remarkably, at that.
Can I ask? Is there a plan to implement microtuning? Full scala/tun support? Because that would start knocking this out of the park.
(I need 15-tet, if that matters)
Boo-Frickety-Hoo.
-Dr. Evil

FathomSynth
KVRian
911 posts since 25 Mar, 2017 from Philadelphia, PA, USA

Re: Fathom New EDM Demo Song and Tutorial Video

Post Thu Feb 22, 2018 6:30 pm

Brewt, thanks.
Microtuning? If it's easy I can just put it in.
Please explain or point to an article so I can read up on it.

brewt
KVRist
190 posts since 9 Jul, 2004

Re: Fathom New EDM Demo Song and Tutorial Video

Post Thu Feb 22, 2018 8:46 pm

Thank you.
It's been a while since I've spoken with Manuel, but he was always very easy to talk to and work with. I don't know if he's still checking this email or not: coul@huygens-fokker.org
Scala is found at http://www.huygens-fokker.org/scala/
It is de facto standard for controlling pitch in synthesizers.
I'm afraid I can't vouch for how easy or hard it is to implement in any given programming situation. It involves using arrays to define pitch instead of a formula, which is what Scala files plug into.

Zynaddsubfx is open source, and they've implemented it, if that helps.
http://zynaddsubfx.sourceforge.net

I hope it works out to be easy; I've seen some developers suggest it is.
Thanks for your consideration.
Boo-Frickety-Hoo.
-Dr. Evil

FathomSynth
KVRian
911 posts since 25 Mar, 2017 from Philadelphia, PA, USA

Re: Fathom New EDM Demo Song and Tutorial Video

Post Thu Feb 22, 2018 9:50 pm

Fathom pitch is already table driven.

It stores all pitch values using the official western scale definition stored in floating point precision which is approximately 9 decimal places, such as C = 523.25113 Hertz. It does not use the rough mathematical approximations such as 1/12. Though it can not yet do alternate scale frequencies.

So it sounds like I might already be doing what they are doing.

The pitch dial finest precision is 0.0001

At some point in the future I plan on making dial precision settable.

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Tj Shredder
KVRAF
1625 posts since 6 Jan, 2017 from Outer Space

Re: Fathom New EDM Demo Song and Tutorial Video

Post Thu Feb 22, 2018 11:15 pm

FathomSynth wrote:Fathom pitch is already table driven.

It stores all pitch values using the official western scale definition stored in floating point precision which is approximately 9 decimal places, such as C = 523.25113 Hertz. It does not use the rough mathematical approximations such as 1/12. Though it can not yet do alternate scale frequencies.

So it sounds like I might already be doing what they are doing.
That means you have a table of 127 values in 32-bit precision? How do you do pitch bend then? By the way 9 decimals is an approximation, 1/12 is a precise value for a just ratio...

FathomSynth
KVRian
911 posts since 25 Mar, 2017 from Philadelphia, PA, USA

Re: Fathom New EDM Demo Song and Tutorial Video

Post Thu Feb 22, 2018 11:39 pm

The western scale or equal tempered scale is a slight adjustment to the mathematically perfect ratios for each individual scale, and historically evolved so that all the scales with root notes on all 12 keys sound more or less harmonic, which is not the case if you use the exact mathematical ratios. The mathematical scales will not produce tones that align with the tones of all the other scales.

A mathematical scale sounds great if you just play in one key, but you can't use the same notes for other scales since they will not match the ratios used in the other scales.

For instance before the 1700's when Bach's Well Tempered Clavier was written to demonstrate the "new" western scale tuning, if you wanted to play in the key of F# instead of C you would have to retune your harpsichord.

Many plugins use the mathematical shortcuts for pitch which are mathematically perfect but slightly off from the equal tempered western scale. Western classical music and rock music, EDM, etc all use the the same scale. There has been a lot of experimentation in the last fifty years in electronic music with different scale tuning, but they are not all "equal tempered", meaning that the same scale applied to all keys does not produce the same 12 tones.

Plugins which use the "real" western scale values in floating point or double floating point precision are much closer to the exact values than the mathematical ratios.

Fathom manages pitch bend by taking the pitch dial value as a ratio and extrapolating between the correct values for two adjacent semitones.

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martinjuenke
KVRAF
2559 posts since 28 Dec, 2015 from Germany

Re: Fathom New EDM Demo Song and Tutorial Video

Post Fri Feb 23, 2018 4:07 am


Flowing atmospheric music
http://www.sonoryth.bandcamp.com/music

brewt
KVRist
190 posts since 9 Jul, 2004

Re: Fathom New EDM Demo Song and Tutorial Video

Post Fri Feb 23, 2018 8:31 am

It sounds like you're almost there. What scala support does is allow the user to define pitch at a macro-structured level (with a tuning or temperament) without having to hand-tweak 128 pitch knobs; to the user, they/we import the scale definition file
which does the work for us.

My 15-tet definition set reads like this:

0: 1/1 0.000000 unison, perfect prime
1: 80.000 cents 80.000000
2: 160.000 cents 160.000000
3: 240.000 cents 240.000000
4: 320.000 cents 320.000000
5: 400.000 cents 400.000000
6: 480.000 cents 480.000000
7: 560.000 cents 560.000000
8: 640.000 cents 640.000000
9: 720.000 cents 720.000000
10: 800.000 cents 800.000000
11: 880.000 cents 880.000000
12: 960.000 cents 960.000000
13: 1040.000 cents 1040.000000
14: 1120.000 cents 1120.000000
15: 2/1 1200.000000 octave

In cents, of course.

the pitch map data looks like this with cents:

0: 60.C 1/1
1: 61.C# 80.000
2: 62.D 160.000
3: 63.Eb 240.000
4: 64.E 320.000
5: 65.F 400.000
6: 66.F# 480.000
7: 67.G 560.000
8: 68.G# 640.000
9: 69.A 720.000
10: 70.Bb 800.000
11: 71.B 880.000
12: 72.C 960.000
13: 73.C# 1040.000
14: 74.D 1120.000
15: 75.Eb 2/1

There are certainly some assumptions made, about how mapping works, especially if one tries to do more than 12 notes per octave, but, the program (scala) can extrapolate it all out to 128 slots for you, if that's how you want to work. There are synths that do that.


And the frequency data looks like this:

0: 261.625565301 Hertz
1: 273.998916919 Hertz
2: 286.957455349 Hertz
3: 300.528856486 Hertz
4: 314.742105136 Hertz
5: 329.627556913 Hertz
6: 345.217003075 Hertz
7: 361.543738418 Hertz
8: 378.642632388 Hertz
9: 396.550203549 Hertz
10: 415.304697581 Hertz
11: 434.946168956 Hertz
12: 455.516566491 Hertz
13: 477.059822933 Hertz
14: 499.621948792 Hertz
15: 523.251130602 Hertz


Since at least I'm working with a real octave, (2/1), then it's just a matter of doubling the pitch frequencies to fill out the table. Things, yes, do get a little weird when you redefine the octave to be something other than 1200 cents.

So, instead of having to type all that in or having to turn knobs per patch, the import into your pitch tables is something you're already very close to. There's not a lot of synthesizers out there that do this, and I would urge you to at least consider the possibilities.

Thanks again.
Boo-Frickety-Hoo.
-Dr. Evil

bibz1st
KVRAF
1548 posts since 29 Mar, 2013

Re: Fathom New EDM Demo Song and Tutorial Video

Post Fri Feb 23, 2018 10:26 am

I absolutely love that demo tune....
I like the ad on here too, very classy
Beauty is only skin deep,
Ugliness, however, goes right the way through

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