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Interesting Analog Synth Modules
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elektro80
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PostPosted: Thu Aug 21, 2003 4:19 pm    Post subject: Reply with quote  Mark this post and the followings unread

Q? hehe.. from what I remember from the electronics classes .. this here is the explanation: ( arrgh... I remember less than I thought.. hang on .. I can try to make an example here ):

The Quality Factor, or "Q", is defined to be the center frequency divided by the bandwidth in Hertz. Hmm.. like.. think of an equaliser filter: For example, a filter centered at 1000 Hz that is 1/3-octave wide has -3dB frequencies located at 891 Hz and 1123 Hz respectively, yielding a bandwidth of 232 Hz. Q, therefore, is 1000 Hz divided by 232 Hz, or 4.31.

Does that make any sense?

BTW: Do reread that Oakley module post I made earlier in this thread. Tony has applied a constant Q circuit in there and that module is pretty neat.

Last edited by elektro80 on Thu Aug 21, 2003 4:48 pm; edited 3 times in total
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seraph
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PostPosted: Thu Aug 21, 2003 4:30 pm    Post subject: Reply with quote  Mark this post and the followings unread

elektro80 wrote:
Q? hehe.. from what I remember from the electronics classes .. this here is the explanation: ( arrgh... I remember less than I thought.. hang on .. I can try to make an example here ):

The Quality Factor, or "Q", is defined to be the center frequency divided by the bandwidth in Hertz. Hmm.. like.. thins of an equaliser filter: For example, a filter centered at 1000 Hz that is 1/3-octave wide has -3dB frequencies located at 891 Hz and 1123 Hz respectively, yielding a bandwidth of 232 Hz. Q, therefore, is 1000 Hz divided by 232 Hz, or 4.31.

Does that make any sense?

Oh my goodness! Shocked I did not know you were a rocket scientist.
Do you also fly jetliners?

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elektro80
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PostPosted: Thu Aug 21, 2003 4:33 pm    Post subject: Reply with quote  Mark this post and the followings unread

Not as a pilot, but... hang on guys.. I do know how to peel a banana!
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PostPosted: Thu Aug 21, 2003 4:37 pm    Post subject: Reply with quote  Mark this post and the followings unread

elektro80 wrote:
Not as a pilot, but... hang on guys.. I do know how to peel a banana!

of course.....there are not banana trees in Norway Laughing

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elektro80
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PostPosted: Thu Aug 21, 2003 4:39 pm    Post subject: Reply with quote  Mark this post and the followings unread

True, and peeling an elk will not quite render the same pleasant experience.
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PostPosted: Fri Aug 22, 2003 1:41 am    Post subject: Reply with quote  Mark this post and the followings unread

elektro80 wrote:


The Quality Factor, or "Q", is defined to be the center frequency divided by the bandwidth in Hertz. Hmm.. like.. think of an equaliser filter: For example, a filter centered at 1000 Hz that is 1/3-octave wide has -3dB frequencies located at 891 Hz and 1123 Hz respectively, yielding a bandwidth of 232 Hz. Q, therefore, is 1000 Hz divided by 232 Hz, or 4.31.

Does that make any sense?


Quality Factor, Q

An inherent characteristic of an oscillator that influences its stability. The quality factor, Q, of an oscillator is defined as its resonance frequency divided by its resonance width. Obviously a high resonance frequency and a narrow resonance width are both advantages when seeking a high Q. Generally speaking, the higher the Q, the more stable the oscillator, since a high Q means that an oscillator will stay close to its natural resonance frequency.
http://tf.nist.gov/timefreq/general/enc-q.htm
WOW man, I guess you are right Shocked

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elektro80
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PostPosted: Fri Aug 22, 2003 1:48 am    Post subject: Reply with quote  Mark this post and the followings unread

Yeah... Cool Great that I still remember some from the classes. –Used to build some of my own gear. –Was an electronics geek. Haven´t messed with the soldering iron for years though.
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jono



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PostPosted: Sun Jan 15, 2006 4:19 pm    Post subject: Re: Interesting Analog Synth Modules Reply with quote  Mark this post and the followings unread

elektro80 wrote:
btw. I did add some vendor links in the hardware section..

There are some very amusing links to stuff like analog synth modules etc.
I recommend you check out some of this stuff and if you see modules that does not make much sense, study them more. there are some very amusing designs out there which are very tempting..



I was readind this topic when I realized that there are some portuguese guys making analog synth modules under the name of Club Of The Knobs
Does any one know anything about them?
I don't know much but here is a link to their place so you can check:
http://www.cluboftheknobs.com/first.html
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elektro80
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PostPosted: Sun Jan 15, 2006 4:31 pm    Post subject: Reply with quote  Mark this post and the followings unread

THX for the link. I have only seen some panels. I know nothing of the company or the gear.
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jkn



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PostPosted: Tue Feb 07, 2006 3:19 pm    Post subject: Reply with quote  Mark this post and the followings unread

Heck - it took me about half the thread to realize it was 3 years old. Wink

COTK has popped up on the synthesizers.com list multiple times in the last year. Some people are dissapointed and others like them. There's someone on that list that has a couple of the modules and is happy with the build quality and sound (though the soldering wasn't spectacular). Other people rant about how horrible COTK is to deal with - others disagree - it seems to have a very wide range of reaction.

Doepfer has some interesting modules going... the Quad ADSR is an animal ( http://www.doepfer.de/a1432.htm ).

Cyndustries new Zeroscillator looks interesting: http://www.cyndustries.com/modules.cfm

The EAR-group started up: http://www.ear-group.com/ They bring together Oakley, Plan B, and Livewire under one roof.

Bananalogue also started up - doing Serge designs: http://www.bananalogue.com/
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v-un-v
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PostPosted: Tue Feb 07, 2006 3:38 pm    Post subject: Reply with quote  Mark this post and the followings unread

elektro80 wrote:
The Encore Universal Event Generator is a Synthesis Technology, MOTM compatible module designed to be a versatile and useful addition to an already great modular system. The UEG can be used as an envelope generator, a complex LFO, or as a step sequencer.



Yes- I believe our very own Dave Peck had something to do with this little beauty?

Personally, I've got one of these; Very Happy


wogglebug.jpg
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PostPosted: Tue Feb 07, 2006 3:40 pm    Post subject: Reply with quote  Mark this post and the followings unread

jkn wrote:
Heck - it took me about half the thread to realize it was 3 years old. Wink




.............here we go again!!!!! Wink

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PostPosted: Tue Feb 07, 2006 4:17 pm    Post subject: Reply with quote  Mark this post and the followings unread

jkn wrote:


Cyndustries new Zeroscillator looks interesting: http://www.cyndustries.com/modules.cfm

Bananalogue also started up - doing Serge designs: http://www.bananalogue.com/


thanks for those liinks- I'm lusting over them right now! Shocked

Unfortunately I feel like Mosc did after I showed him the link for the Glass Harmonica Crying or Very sad

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PostPosted: Wed Feb 08, 2006 6:53 am    Post subject: Reply with quote  Mark this post and the followings unread

I've curbed my gear lust for the moment - the only immediate items I'm trying to budget for is finishing my dotcom cabinet (3 modules to go... still... Smile

I really love the look of the Modcan B Series - http://www.modcan.com - love that clinical clean look... Definitely not new news for anyone following modulars - but I don't think it's in this dusty thread yet. I think I'd probably add MOTM modules into my setup instead though - or possibly start a Blacet rack. Or...

Speaking of MOTM, Paul is working on frac versions of several of his modules - there's a thread on it (with Paul posting info) here ( http://forum.soundarc.net/topic-127-0-30.html ) - last post is Oct 20, 2005 - I think I saw something more recent, but can't remember where.
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PostPosted: Wed Feb 08, 2006 7:57 am    Post subject: Reply with quote  Mark this post and the followings unread

jkn wrote:
I've curbed my gear lust for the moment -


I've had to curb my gear lust full stop! My solitary wogglebug is a bit of a one trick pony- I'd love those modcan modules but at 650usd/ or so- a piece????- they are more of a rich-man/woman's toy

Although you can see that Grant Richter has put a lot of effort into the design of the woggle, it's actually quite simple- I bet one could be knocked together (minus the fancy front panel though) for a lot less than how much I bought it for.

I wish there were more Ray Wilson's out there in this world of modular Sad

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PostPosted: Wed Feb 08, 2006 8:50 am    Post subject: Reply with quote  Mark this post and the followings unread

Quote:
The Woggle Bug module contains:

2 Voltage Controlled Low Frequency Oscillators
4 Sample and Hold Units
4 Lag Processors
4 Audio Rate Voltage Controlled Oscillators
4 Balanced Modulators ("ring modulators")


http://www.wiard.com/modular/Woggle/Woggle.html

Seems to only be missing the kitchen sink. Smile

The combinations of different things is why I'm leaning towards a Blacet rack in the future. I bought my synthesizers.com because I wanted essentially a solid plain vanilla modular - and the dotcom fulfills that admirably. I may opt to add a 2nd 22 space cabinet of dotcom and not switch to anything else.

I actually rarely buy gear - springing for the 22 space modular cabinet (a few shots here: http://www.johei.com/gallery/2004Nov?&page=3 ) was a big investment. I've collected my small studio over 20 years - so the gear buying has been sporadic. Smile

I'm actually toying with going with a Reaktor-ish type program as my next investment. Then again - I really prefer hardware when it comes down to it. We'll see - I'm a long way off from something 'new' once I buy my last three modules for the dotcom.
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PostPosted: Wed Feb 08, 2006 10:15 am    Post subject: Reply with quote  Mark this post and the followings unread

jkn wrote:
Quote:
The Woggle Bug module contains:

2 Voltage Controlled Low Frequency Oscillators
4 Sample and Hold Units
4 Lag Processors
4 Audio Rate Voltage Controlled Oscillators
4 Balanced Modulators ("ring modulators")


Seems to only be missing the kitchen sink. Smile



don't believe the hype! Yes it can do ring modulation- but only squarewaves, yes it does have sample and hold -infact it's based on the Buchla Source of Uncertainty, the vco's only make pulse and a sawtooth (although its the pulse which is more useful). It is NOT 1v/oct by any stretch of the imagination- and although it only makes one type of sound, getting it to repeat something twice is nigh on impossible!!

Well I'm probably asking too much out of it- Grant Richter made it quite clear that it is better put to use with other modules- but there is no way of telling that until I'm very very rich!

The demo woggle mp3 on Wiard's site makes far better noises than this bug. I've emailed Grant 2 or 3 times about modifying it to sound more 'Louis and Bebe Barron", but he never replies- so there you go. Perhaps he's lurking somewhere on this forum? Grant are you there?

I think I only need a couple more modules- and I've got the potential of quite a cool sound making box at my disposal.

If anyone wants to swap a G2 for it- then I'm all game Smile

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