hi, Jan
looking really terrific.
thanks for taking the time to put out such a useful resource!
Getting Started with Axoloti, the Book
theSmiley
#41
treehousebird
#42
Hey I'm only interested in the last chapter, but if this fits my need I'd buy it.
But I'm a tech noob and like to know, if I understand it and learn how to attach potentiometers (hardware and software). I'd like to use the axoloti as a guitar effect engine and, therefore I need the potis.
Could you tell me a bit about the content and how difficult it is?
I have another question, a bit unrelated, but maybe you could tell me: Is it possible to change the presets via poti instead of midi? I don't want to use a midi controller, because of the place they take and the costs. But changing presets is a nice feature.
Thank you!
janvantomme
#43
These are the topics I'm covering in the last chapter. Chapter 5 may be useful as well if you want to create a guitar effects box. You can listen to all the effects from chapter 5 (bass guitar + guitar) on SoundCloud: https://soundcloud.com/janvantomme
- Connecting MIDI Controllers
- Connecting the iPad
- Connecting an LED
- Connecting Buttons, Toggles and Switches
- Connecting a Potentiometer
- Connecting an Analog Thumb Joystick
- Connecting a Distance Sensor
The book contains a lot circuit diagrams like the one below, and detailed explanations on how everything works.
The easiest way to switch presets, or even full patches is with a pushbutton. A foot switch might even be the best option in your case so you can switch effects while playing.
janvantomme
#47
I've just published the final chapter of the book. These are the topics covered in chapter 6:
- Connecting MIDI Controllers
- Connecting the iPad
- Connecting an LED
- Connecting Buttons, Toggles and Switches
- Connecting a Potentiometer
- Connecting an Analog Thumb Joystick
- Connecting a Distance Sensor
I've kept the price of the book low while I was writing it, so with the publication of the final chapter, I've also set the full price. However, to celebrate the launch, I've created a coupon code that is valid until the end of this month. Browse to this URL to use the code: https://leanpub.com/getting-started-with-axoloti/c/full-book-launch
Since this is a digital-only book, I will add new topics in the future. Something that wouldn't be possible with a physical book. I'm also looking to hire an editor to make the book even better, but I'll first have to sell a few hundred books so I can pay that person.
toneburst
#48
Just bought! Looking forward to digging in soon.
Flicking through the PDF, I noticed it seems to stop rather abruptly at page 120. Is there a bit missing from the end?
a|x
janvantomme
#49
Nothing is missing, the PDF indeed stops at page 120. I still need to add some extra things like a glossary, an about the author section, …
My main focus now was to get the content of chapter 6 out, since many people were asking about it.
Let's start 
SirPrimalform
#52
Hmm, think this might actually be too basic for me by now. By the way, I don't agree with the way you add velocity in the first chapter! I think scaling the audio twice through two VCAs is messy, better to multiply the gate or EG signal by the velocity with a k-rate * object.
janvantomme
#53
Thanks for the feedback. The book is mainly for people who just get started with synthesis. So if you have a background in electronics or dsp programming it may be too basic.
I might add your method for the velocity to the next release of the book. There's a lot of ways you can do things with Axoloti, using 2 VCAs to add velocity is only one of them.
SirPrimalform
#54
Definitely lots of ways of doing things, I just feel like it's good practice to avoid unnecessary scaling of the audio, not to mention it's probably more efficient to use 1 k-rate * and one VCA instead of two VCAs. I think it's a valuable book for getting people started though if they don't have a clue where to begin!
daksha
#55
Ok, yes, it's basic, but helps a bit with common Axoloti "conventions" and architecture. I have a NM G1 and it's quite different the basic operation, so I found this manual to be ok anyway.
janvantomme
#56
I've decided to do a summer sale. You can get the book cheaper until the end of July if you buy it via this url.
https://leanpub.com/getting-started-with-axoloti/c/summer-sale-2016
Digital_Failure
#57
I looked at your book before and couldn't really decide on whether or not to buy it. Well, now I did and it looks wonderful. Some step-by-step stuff to learn more about the Axoloti and common objects is just what I was looking for. And since there's not too much literature/videos outside this website your book just fills a gap.
By the way I think the Axoloti is not OUT THERE enough. The community ought to start some video contest or stuff - that's for sure! I think there are lots of people who have never heard of the Axoloti and would love it just as much as I do.
baldguru
#58
Just got my Axoloti and this book! Can't wait to work my way thru it so that I can have a solid understanding of Axoloti - this is going to save me soooo much time and mis-steps. Thanks so much for writing this. And by introducing LeanPub - a great resource!