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Your favourite low pass filter?
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elmood



Joined: Sep 05, 2009
Posts: 22
Location: Toronto

PostPosted: Sat Sep 12, 2009 9:22 am    Post subject: Your favourite low pass filter? Reply with quote  Mark this post and the followings unread

Being a mostly digital design guy, everyone keeps trying to tell me the virtues of analog circuits for synthesis. I would have to agree that most of the analog or hybrid digitally-controlled analog synths I've heard certainly have "that sound" that you just can't get any other way. But of course my engineering brain wants to understand what my ears know is true. What parts of a synth (other than all of them) benefit most from being analog? Insight into this would be quite interesting.

One answer I hear a lot is: "It's all about the filter, man!"

Anyway, I've been asking people I meet about their favourite filter. So I thought I'd put the question out there and see what folks who actually design and build their own stuff think?

So far I've been told the best sounding filters are:

- the filter section in the Korg MS-20
- the filter in the Roland TB-303
- the MOTM 440 filter
- the ARP 4075 filter found in later ARP 2600 models

What do you guys think?
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ultrashock



Joined: Dec 10, 2009
Posts: 40
Location: Vienna.AT

PostPosted: Thu Dec 10, 2009 7:12 am    Post subject: Reply with quote  Mark this post and the followings unread

You've lost Moog 24LP filter (by Yusynth, bergsyn etc.) or you made it purposely?
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JovianPyx



Joined: Nov 20, 2007
Posts: 1988
Location: West Red Spot, Jupiter
Audio files: 224

PostPosted: Sat Jan 23, 2010 11:49 am    Post subject: Reply with quote  Mark this post and the followings unread

I'm a digital guy too. I have some analog equipment with state variable filters. I like them. So in my digital work, I have used state variable filters as well, mainly because they are easy to control. I like to use wide datapaths and high sample rates to make them sound more analog. By high sample rate I mean 200 KHz or more and by wide datapaths I mean 70 bits (fixed point arithmetic).
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