Ada synth lib
Ada synth lib is a very simple synthethizer library with a mostly recreative purpose. The design goal is to make a library from which you can make synthesis musical instruments that can run on bareboard devices such as the STM32F4 board or the Rpi.
You'll need AdaCore's latest GPL release, that you can get through
Adacore libre site, or you can use the FSF
compiler available on most Linux distributions. It has been tested to work with
Debian Stable and Ubuntu 15.04, with the
The regular project file uses Runtime attribute, which is not yet supported by
the gprbuild FSF version.
Preparing for the soundio build
You need to checkout the ada-soundio repo at the root of ada-synth-lib:
git clone https://github.com/raph-amiard/ada-soundio/
This repo contains a script that will build libsoundio and ada-soundio at the same time, that you can use if you have bash.
cd ada-soundio && ./build.script && cd -
$ gprbuild -p ada_synth_lib.gpr
For native with libsoundio support:
$ gprbuild -p ada_synth_lib_soundio.gpr
$ gprbuild -p -f -Xtarget=bareboard
If you want to build the examples, run
$ gprbuild -p examples/asl_examples.gpr
Producing sound from the examples will require you to have some command line
program that you can pipe sound into and that will play it on your speakers.
Here is how you'd do it with
$ examples/obj/audio | aplay -f S16_LE -c1 -r44100