using wave file converted to text as wavetables

oddson · 16 Feb 2010

TravisHuckins wrote: ...I can now use a sample of a sine waveform to make a correct sounding sine which is impossible to draw using wave draw.

This can be connected to the back end of the wave draw.

I figured this out for the AddTable/TableSynth. It's slightly altered to allow for the variable size array for the wavetable primitives (previously it was fixed at 256).

I think there might also be a utility somewhere on the forum that takes a single wave-cycle and turns it into a text table that the wave-draw can import.

Acrobat · 16 Feb 2010

oddson wrote: I think there might also be a utility somewhere on the forum that takes a single wave-cycle and turns it into a text table that the wave-draw can import.

Thank you for the post, it's a great example for my needs. The application could be eventully "Wave Sizer" by C.Hackl, but it was an .exe so I could not watch inside it and learn as with yours! 😀

Jay · 24 Feb 2010

hi that's pretty cool! seems to work way quicker than other methods i have tried in the past!

could you show how to build triangles this way oddson?

best regards

oddson · 25 Feb 2010

Jay wrote: could you show how to build triangles this way oddson?

It's essentially the same as saw but you have to double the number of segments and invert every other one.

So I just multiply the waves-per-table input and do modulus 2 division on the segment number to determine whether to invert the point value for a given spot or not...

But you'd have to figure out how I did the saw to really understand... and it took me a while and it's my module.

There's likely a very large number of approaches that would work and since once it's calculated you don't need to do it again efficiency isn't even all that important.

Here it is if you just want the result:

Jay · 25 Feb 2010

ah thanks oddson I'm gonna study this approach to see if i can understand it.

Maths is a real alien language to me since my teachers had no understanding towards my aspingers so they thought i was either unwilling to learn or unable to and i got put into a basic arithmetic class at school. i don't even know the very basic mathematical symbols and often i am to embarrassed to ask. I think i need to look at going to an adult learning center and trying to pick up some maths knowledge.

thanks again for the reply 🙂

Best Regards

exonerate · 25 Feb 2010

Jay wrote: ah thanks oddson I'm gonna study this approach to see if i can understand it.

Maths is a real alien language to me since my teachers had no understanding towards my aspingers so they thought i was either unwilling to learn or unable to and i got put into a basic arithmetic class at school. i don't even know the very basic mathematical symbols and often i am to embarrassed to ask. I think i need to look at going to an adult learning center and trying to pick up some maths knowledge.

thanks again for the reply 🙂

Best Regards

My maths was pretty poor before I started using SM. I was actually top set in maths at school, for a while, then I started skiving a lot 😉 missed my exams ect.. and got moved right down to a lower class. That class was doing maths I had mastered in the first year, needless to say I got very bored of that lesson, and just stopped going to it.

If you just play about with some of the maths stuff in SM you can learn a lot that way. Just keep reading stuff, lot's of math info online and then testing it out in SM. Is what I did. 🙂

There's also a list of pretty much all the math symbols on wikipedia. Has helped me out a few times.

Cheers 😉

Exo