STG Mankato Filter

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suitandtieguy
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Post by suitandtieguy » Wed Nov 05, 2008 2:02 pm

thermionicjunky wrote:I always thought that you'd need a dome filter , in order to obtain a 90 degree phase network. Still, the Mankato gets you part of the way there.
yes. you need 2 sine waves 90 degrees apart. the Mankato accomplishes this from those two outputs, which means it probably gets you all the way there.

i just can't test this here. i have no ring modulators.

the reason i suggest those two outputs is that the 6 db/oct output's sine is slightly distorted, as i like it that way, and it kept me from having to calibrate something i thought was unnecessary and tedious to calibrate.

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Post by thermionicjunky » Wed Nov 05, 2008 8:15 pm

suitandtieguy wrote:
thermionicjunky wrote:I always thought that you'd need a dome filter , in order to obtain a 90 degree phase network. Still, the Mankato gets you part of the way there.
yes. you need 2 sine waves 90 degrees apart. the Mankato accomplishes this from those two outputs, which means it probably gets you all the way there.

i just can't test this here. i have no ring modulators.

the reason i suggest those two outputs is that the 6 db/oct output's sine is slightly distorted, as i like it that way, and it kept me from having to calibrate something i thought was unnecessary and tedious to calibrate.
Yeah, I mean that both the input signal and the modulating oscillator have to be in quadrature, I think. Two Mankatos would accomplish it if that's the case. It could also be done with a Zeroscillator, VCDO, or another quadrature oscillator.

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Post by Kwote » Wed Nov 05, 2008 10:28 pm

i wanna build two mankatos. just waiting for the right time to get the boards.

the guy's at magic smoke were very nice at the AH meet.

thinkin about the sheboygan VCO too. mmmm. sheboygan. :drunkhomer:
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goiks
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Post by goiks » Sat Nov 08, 2008 6:17 pm

can't wait for my two pcbs and stg plates to show up. unfortunately they appear to have gotten lost in the mail...

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suitandtieguy
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Post by suitandtieguy » Sat Nov 08, 2008 8:36 pm

they didn't get lost in the mail, they got delayed by my fail. they ship on Monday if you want, with AH's first ten EU Wave Folders. however I thought you wanted one of them in a different format.

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goiks
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Post by goiks » Sun Nov 09, 2008 3:37 pm

the pcbs got lost in the mail, but a new set was sent and arrived yesterday!

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apemandan
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Post by apemandan » Sun Nov 09, 2008 5:30 pm

so is no one taking up the frequency shifter challenge??!

:cry: :cry: :sadbanana: :cry: :cry:

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Post by suitandtieguy » Sun Nov 09, 2008 5:55 pm

apemandan wrote:so is no one taking up the frequency shifter challenge?
not currently.

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Post by fluxmonkey » Mon Nov 10, 2008 1:04 am

apemandan wrote:so is no one taking up the frequency shifter challenge??!

:cry: :cry: :sadbanana: :cry: :cry:
i've been swamped, but did spend about 10 minutes trying it, using a pair of CGS real ring modulators (w/ added buffers). really sounded more like AM than phase shifting, but i really didnt spend enuf time to give it a fair shake...
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Post by thermionicjunky » Mon Nov 10, 2008 12:35 pm

fluxmonkey wrote:
apemandan wrote:so is no one taking up the frequency shifter challenge??!

:cry: :cry: :sadbanana: :cry: :cry:
i've been swamped, but did spend about 10 minutes trying it, using a pair of CGS real ring modulators (w/ added buffers). really sounded more like AM than phase shifting, but i really didnt spend enuf time to give it a fair shake...
You mean frequency shifting, right? Anyway, there is probably far too much bleed from the real ring mod. The sidebands are the same. If I ever throw together a module for this purpose, I'll try to include a compander at the tail end.

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Post by Suburban Bather » Fri Nov 21, 2008 4:44 pm

apemandan wrote:
suitandtieguy wrote:
wetterberg wrote:
fluxmonkey wrote:
suitandtieguy wrote:are there any Mank owners with 2 ring modulators and a Blacet mixer/processor?
yes. whatchu got in mind?
i believe if you take, say the 12 dB/oct output and the 24 dB/oct output in full regeneration and feed them into two ring modulators' carrier inputs, and a source material of some kind into the modulator inputs, then feed the outputs of those two ring modulators into two channels of a Blacet mixer/processor phase-inverted from one another you should be able to construct a frequency shifter. but i could be wrong.
I'd really like to hear this! I think if you then feed the whole caboodle back on itself via the mixer you should get a sheppard tone! :hyper:
I just got a second MF-102, as soon as my Mankato arrives I'll give this patch a shot.

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Post by elemental » Tue Dec 30, 2008 7:30 am

I would just like to add, that the Mankato is one mean sub bass machine.
Got my Mankato a few days ago, and I have to stay this is the best use I've had for it so far!!
The whole quadrature modulation thing is cool and all... but the sub that comes out of this thing is so satisfying. Clean and deadly.

Last night I was adding some sub to a track I'm working on.. sent a short click from a Plan B M10 to the audio in, set regenerations to almost self resonating, tuned it up and then shook my flat for a while :)

I've always wanted a playable 808... this is prob about as close I'll get. :love:

P.S. will post audio tonight , promise!!

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Post by wetterberg » Tue Dec 30, 2008 11:53 am

elemental wrote:I've always wanted a playable 808... this is prob about as close I'll get. :love:

P.S. will post audio tonight , promise!!
haha, ya better effin deliver with a teaser like that!

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Post by suitandtieguy » Tue Dec 30, 2008 6:02 pm

yes please post clips!

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Post by elemental » Tue Dec 30, 2008 8:47 pm

here ya go :hihi:
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Post by DGTom » Tue Dec 30, 2008 9:35 pm

:love:

:eek:

n.e.e.d!

The low -> high is just lovely!

Is that just pure Mankato output into computer?

Thanks for uploading .wav as well! Sub rumble goodness!

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Post by elemental » Tue Dec 30, 2008 10:25 pm

The patch was:

M10 short expo click to Mankato audio input. Regenerations set just before self resonance. Sequencer CV -> Oakley Lag -> Mankato cv input. Slight envelope on the pitch, release only, to emphasise the pitch drop effect which also happens naturally as the resonance decays.
Mankato 6db output -> mixer -> computer via RME.
Nice and simple!

I tried similar patches before with my AS 110 multimode... it has a nice sound esp on the bandpass with this kind of patch but v hard to tune and does not scale that far.

However the Mankato gives a really full solid sound, esp as it happily goes into sub audio range. :twisted:

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Post by DGTom » Tue Dec 30, 2008 11:08 pm

:hail: Thanks for the details!

Yes, thats what grabbed me straight off & had be buzzin :coffee: just how smooth & heavy the slide between the high & low notes is, from my (albeit limited) experiance this is where these sounds really fall over.




P.S. I just clocked the name of the 2nd tune on your new 12" w/ S&D! :hihi:
are S&D still making tunes? I miss the show on Rinse bad!

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Post by wetterberg » Wed Dec 31, 2008 12:26 am

wow... just... wow. I think that's one of the most "assertive" sounds I've ever heard out of 1 osc! I don't know, to me this is just so much wilder than any AFG multi-resonant doodad.

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Post by kidtesla » Wed Dec 31, 2008 12:51 am

Yeah! :nod:

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Post by elemental » Wed Dec 31, 2008 7:54 am

DGTom wrote: P.S. I just clocked the name of the 2nd tune on your new 12" w/ S&D! :hihi:
are S&D still making tunes? I miss the show on Rinse bad!
hehe :razz:

Yeh S&D haven't ever stopped, they just kinda went into hiding, after some hard drive-related disasters. They've got stuff forthcoming, I guess next year sometime. Yeh their show on Rinse was top!

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Post by Suburban Bather » Thu Jan 01, 2009 4:28 pm

I'm still patiently waiting for mine to arrive. I do feel like I'm about to chew my hand off though.

Thanks posting the demo Elemental.
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Post by suitandtieguy » Fri Jan 02, 2009 1:15 am

Suburban Bather wrote:I'm about to chew my hand off
to keep you from chewing your hand off, i'll send the Mank and the Multiple to you tomorrow, the Sea Devils Filter will follow next week. the absolute last thing i want is blood on my hands from depriving someone of a multi-tap filter.

apparently i've been soldering so much i burned through the ETH tip on my Weller, so i had to take a break. the new tip gets here tomorrow, so it's nose-to-the-stone time.

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Post by Suburban Bather » Fri Jan 02, 2009 4:16 pm

suitandtieguy wrote:
Suburban Bather wrote:I'm about to chew my hand off
to keep you from chewing your hand off, i'll send the Mank and the Multiple to you tomorrow, the Sea Devils Filter will follow next week. the absolute last thing i want is blood on my hands from depriving someone of a multi-tap filter.

apparently i've been soldering so much i burned through the ETH tip on my Weller, so i had to take a break. the new tip gets here tomorrow, so it's nose-to-the-stone time.
:sb: Rock!

Sounds like that order of modules you sent to AH really did a number on your iron.

Any news on the Wave Folder panels?
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Kent
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Are this attenuator points on currently shipping product?

Post by Kent » Wed Jan 07, 2009 10:36 pm

I checked out the PCB. It looks like there are some un-exploited solder pads for attenuators on the CV & Audio inputs. Would the resourceful fellow be able to make a little 1 space panel and wire these up directly? If so, what value of pots would said fellow seek?


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