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 Forum index » Instruments and Equipment » General Discussion
What does "divide down" mean?
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Antimon



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PostPosted: Fri Mar 08, 2013 4:04 am    Post subject: What does "divide down" mean? Reply with quote  Mark this post and the followings unread

On the upcoming (hopefully!) Waldorf Pulse 2, it has been speculated that the so-called paraphonic feature will involved "dividing down" oscillator output, which will somehow create extra tones that weren't there in the original signal, IIUC.

Could someone here shed some light on what exactly "divide down" means in this respect?

From Waldorf Re: Pulse2:

Quote:
The paraphonic mode of the monophone Pulse 2 allows playing even eight-voice chords, while an extensive arpeggiator provides another creative playing field.


Since the Pulse 2 is said to have three oscillators, it can't be just different tones on different oscillators. Also, the oscillators are analog...

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jksuperstar



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PostPosted: Fri Mar 08, 2013 7:07 am    Post subject: Reply with quote  Mark this post and the followings unread

Usually it means a sub-oscillator, which takes an oscillator, a puts the signal through a flip-flop, which divides the fundamental frequency by two, so you get a square wave that is 1 octave below the fundamental frequency of your oscillator.

The arturia mini-brute, Roland sh-101, and so many others have a feature like that.
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Antimon



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PostPosted: Fri Mar 08, 2013 7:22 am    Post subject: Reply with quote  Mark this post and the followings unread

Ah so you will be limited to octave differences on the Pulse2 probably?
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varice



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PostPosted: Fri Mar 08, 2013 9:55 am    Post subject: Reply with quote  Mark this post and the followings unread

Their description sounds like they are using a Top Octave Generator (TOG) (aka Top Octave Synthesizer TOS) and then using divide-by-two logic to generate the notes for the lower octaves.

Some information about this technique is here:

http://www.organservice.com/crm/topdividers.htm

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robsol
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PostPosted: Fri Mar 08, 2013 10:25 am    Post subject: Reply with quote  Mark this post and the followings unread

an other take on it here: http://www.soundonsound.com/sos/dec00/articles/synthsec.asp

That waldorf quote is a bit vague though... Hard to tell what they mean exactly.

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