[PD] pd book sprint

Derek Holzer derek at umatic.nl
Mon Mar 30 16:56:05 CEST 2009


Actually, DC offset could be covered in "What is Digital Audio", since 
it is a concept that needs explaining. Then, my suggestion still is to 
include it after the basics of the Square Waves. I'd like to keep the 
patches there as simple as possible, and since the DC Offset can be done 
at the end, why not have it there?

Triangle wave would also be good. Write it first and we'll see where 
exactly to put it.

D.


Alexandre Porres wrote:
> sure, I could do both.
> 
> But I think it would be inportant to start just after
>  
> 
>     * AUDIO TUTORIALS
>     * SimpleSynthIntroduction
>       <http://en.flossmanuals.net/PureData/SimpleSynthIntroduction>
> 
> 
> and before the oscilators with the Short DC offset chapter.
> 
> Then edit and correct the oscilator patches with values from -1 to 1
> 
> I also can create and put in the oscilator chapter a Triangle wave 
> oscilator made with phasor
> 
> what do you say?
> 
> Cheers
> 
> 
> On Mon, Mar 30, 2009 at 11:43 AM, Derek Holzer <derek at umatic.nl 
> <mailto:derek at umatic.nl>> wrote:
> 
>     Alexandre,
> 
>     Yes please, get on board!
> 
>     In the case of the square wave chapter, I had assumed that doing it
>     with digital logic would result in either 0 (no amplitude) or 1
>     (full amplitude). So there shouldn't be any DC offset when it's at
>     0. Of course, there are some other real-world problems with those
>     patches, namely that there is also no antialiasing.
> 
>     Since the FLOSS Manuals are "modular", they can be remixed as needed
>     for any kind of workshop, class or curriculum, including or leaving
>     out sections from all the different FLOSS Manuals as needed.
> 
>     So my suggestion to you would be to write a short chapter on DC
>     offset which can then be referred to in the square wave tutorial, or
>     in any other tutorial or manual where such a situation might arise.
> 
>     Likewise, I'd love it if someone could do a single chapter on the
>     different antialiasing methods (Miller's, Frank's...). The idea
>     would be to simplify the explanations so that one doesn't need a
>     background in DSP or computer science in order to understand them.
> 
>     Would you be interested to do either of those?
> 
>     D.
> 
>     Alexandre Porres wrote:
> 
>         Hi, I am really interested in helping!
> 
>         I actually have some stuff I wanted to "corrrect", or bring some
>         attention to, like the DC OFFSET. You dont cover it, and when
>         you show how to get a Square Wave, the DC Offset is not properly
>         adjusted.
> 
>         thanks
> 
>         cheers
> 
>         On Mon, Mar 30, 2009 at 11:20 AM, Derek Holzer <derek at umatic.nl
>         <mailto:derek at umatic.nl> <mailto:derek at umatic.nl
>         <mailto:derek at umatic.nl>>> wrote:
> 
>            Hey Alexandre,
> 
>            I just posted the announcement of the Pd FLOSS Manuals Book
>         Sprint:
> 
>            http://lists.puredata.info/pipermail/pd-list/2009-03/069107.html
> 
>            I was wondering if you'd be interested to help out next
>         weekend? It
>            shouldn't be a problem to contribute remotely, and it would
>         really help
>            build up the momentum to finish this manual.
> 
>            Have a look over the topics and see if there is anything
>         you'd like to
>            cover and let me know.
> 
>            Best!
>            Derek
> 
>            --    ::: derek holzer ::: http://blog.myspace.com/macumbista :::
>            http://www.vimeo.com/macumbista :::
>            ---Oblique Strategy # 11:
>            "Always first steps"
> 
> 
> 
> 
> 
>         -- 
>         Alexandre Torres Porres
>         cel. (11)8179-6226
>         Website: http://porres.googlepages.com/home
>         http://www.myspace.com/alexandretorresporres
> 
> 
>     -- 
>     ::: derek holzer ::: http://blog.myspace.com/macumbista :::
>     http://www.vimeo.com/macumbista :::
>     ---Oblique Strategy # 109:
>     "Lost in useless territory"
> 
> 
> 
> 
> -- 
> Alexandre Torres Porres
> cel. (11)8179-6226
> Website: http://porres.googlepages.com/home
> http://www.myspace.com/alexandretorresporres
> 

-- 
::: derek holzer ::: http://blog.myspace.com/macumbista ::: 
http://www.vimeo.com/macumbista :::
---Oblique Strategy # 67:
"Emphasize the flaws"




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