On 08/25/2013 12:59 AM, Tom Schouten wrote:
On 07/14/2013 09:20 AM, Tom Schouten wrote:
On 06/27/2013 02:15 PM, John Clements wrote:
On Jun 12, 2013, at 9:24 AM, Tom Schouten wrote:
On 05/30/2013 08:21 PM, Tom Schouten wrote:
On 05/30/2013 05:30 PM, John Clements wrote:
On May 30, 2013, at 1:21 PM, Tom Schouten wrote:
Hi List,
Here's a tiny experimental tool I've been working on the last
couple of months:
http://zwizwa.be/rai/rai.html
It's mostly aimed at the music DSP world (sound synthesizers and
effects) where feedback structures are very important, but it
could be fairly generic in its use. I tried to stay as close to
Scheme as possible.
The basic idea is to use Racket as replacement for Matlab, i.e.
to analyze algorithms specified in a high level format, and use
it to generate dependency-free C or ASM code for deeply embedded
targets.
Currently it can generate binary plugins for Windows VSTi, Pure
Data and Jack Audio.
This looks totally awesome. Would you consider making a Racket
Package out of this? My fall class could definitely be interested.
Cool :)
Here's the package:
raco pkg install github://github.com/zwizwa/rai/master
That will run all the Racket code.
For the C code gen, the Makefile is the best point of entry.
Currently Linux only, and might need some tweaking.
added synth-lib.rkt basic synth kit and synth.rkt example synthesizer.
- envelopes
- parameter control dezippers
- parameter control scales (exponential, "squashed" exponential, ...)
- SVF filter
- supersaw osc
- anti-aliased saw osc
- saturation functions
- FDN reverb tail
How I use it at this time, Linux + Pd:
make sp_host.pd_linux # build binary Pd wrapper
pd sp_test.pd& # run Pd patch built around sp_host
make livecode # continuously compile synth.rkt -> synth.sp binary
module
then edit synth.rkt or any of its dependencies and the binary code
running in Pd will be updated, leaving state intact if the type
didn't change.
Very cool.
If only my students weren't all running windows….
John
It already uses mingw on linux for cross compilation so it should
work pretty much out of the box with mingw on windows.
Bare-bones build-mingw.bat to build the VST plugin DLLs using standard
install MinGW / MSYS on Windows:
https://github.com/zwizwa/rai/blob/master/rai/build-mingw.bat
The MSYS deps are only there to support Makefile + shell script +
small unix commands.
I suppose that part could be replaced by a racket script, which might
be also be more useful for building & loading the native code VST
plugin into racket for testing after C code generation.
using (system "C:\MinGW\bin\mingw32-g++ ..."):
https://github.com/zwizwa/rai/blob/master/rai/stream-native.rkt
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