programmer/mathematician producers | xltronic messageboard
 
You are not logged in!

F.A.Q
Log in
Register
  
 
  
 
Now online (2)
belb
recycle
...and 320 guests

Last 5 registered
Oplandisks
nothingstar
N_loop
yipe
foxtrotromeo

Browse members...
  
 
Members 8025
Messages 2614103
Today 16
Topics 127542
  
 
Messageboard index
programmer/mathematician producers
 

offline VLetr from London (United Kingdom) on 2004-05-19 03:01 [#01195043]
Points: 793 Status: Regular



A friend and I are programming a sequencer in C++. Can
anyone give us some info on the mathematics of audio fx? The
generators are all hunky dory, but the more I think about
how to extract frequency information from an evil squiggle
of a sound wave (eg. for an equaliser) the more confused I
get.


 

offline sneakattack on 2004-05-19 03:05 [#01195048]
Points: 6049 Status: Lurker | Followup to VLetr: #01195043



How much reading have you done on fourier transforms?

 

offline VLetr from London (United Kingdom) on 2004-05-19 03:14 [#01195057]
Points: 793 Status: Regular | Followup to sneakattack: #01195048



None. I figured it was probably fourier analysis though.

We really know very little about all this sound manipulation
stuff, just working stuff out and deriving it as we go
along, but we're both pretty good at maths. So... soc it to
me... any web resources you can recommend? Be gentle.


 

offline sneakattack on 2004-05-19 03:24 [#01195073]
Points: 6049 Status: Lurker | Followup to VLetr: #01195057



There's shitloads of literature everywhere; unfortunately I
don't have a specific one to recommend, though you may like
to see the mathwmathworld definition for a quick summary, and some
related concepts. the faq archives also usually have good
summaries, and pointers to texts as well.

fftw is a fast open source fourier decomposition library.
It's in C, so you can use it easily from any language (in
case you move from C++ or whatever).


 

offline Drunken Mastah from OPPERKLASSESVIN!!! (Norway) on 2004-05-19 03:32 [#01195088]
Points: 35867 Status: Lurker | Show recordbag



.
Attached picture

 

offline JAroen from the pineal gland on 2004-05-19 03:37 [#01195098]
Points: 16065 Status: Regular | Followup to Drunken Mastah: #01195088



very smart

 

offline VLetr from London (United Kingdom) on 2004-05-19 03:38 [#01195101]
Points: 793 Status: Regular | Followup to sneakattack: #01195073



thanks sneakattack, i'll check those out.

 

offline gnocelot from Greifswald (Germany) on 2004-05-19 06:10 [#01195296]
Points: 288 Status: Lurker



Somewhat useful is musicdsp, and this book might
help you as well since you're just starting out.

There's also Julius Orion Smith III, who has a large number of
DSP-related papers that you might find informative available
on his site. And his name hangs in a deliciously precarious
balance between "awesome" and "stupid".


 

offline w M w from London (United Kingdom) on 2004-05-19 12:09 [#01195979]
Points: 21452 Status: Lurker



And his name hangs in a deliciously precarious
balance between "awesome" and "stupid".

Eh he he.

 

Messageboard index