LÖVE

Posted: **Mon May 26, 2014 3:24 pm**

Hello everybody!
Over the last weeks I worked on a port of the awesome sfxr sound generator to pure Lua. My goal was to allow easy dynamical creation of sound effects based on in-game events. Think about infinite, completely procedurally generated games.

The source is on GitHub: http://github.com/nucular/sfxrlua

Here's some code since people love examples:

Code: Select all

local sfxr = require("sfxr")

function love.load()
    local sound = sfxr.newSound()
    sound:randomize()
    sound:play() -- generates a SoundData and plays it
end

Current features:

Editable documentation wiki at http://github.com/nucular/sfxrlua/wiki
Output samples of a Sound instance can be generated using an iterator
All 7 preset generators are implemented
Demo application based on LoveFrames that resembles the original
Export to the RIFF WAV format
Saving and loading of the binary format used by vanilla sfxr

Targeted Features:

Embedding into the love-loader framework or other kinds of threaded sound generation

And a screenshot of the demo application:

The entire thing is a work in progress, that means sudden crashes and wild API changes may happen.
Known issues can be found here: http://github.com/nucular/sfxrlua/issues
Pull requests are always welcome!

You can check out the original sfxr here: http://www.drpetter.se/project_sfxr.html
Also, here's a little introduction to it: https://www.youtube.com/watch?v=Sgah1W4y6Zs

The attached demo application may not be up-to-date with the version on the repo.

Posted: **Mon May 26, 2014 4:21 pm**

What-.
Hats off. You sir, are awesome.

EDIT: Since this has known issues, i'd suggest filing a issue using github's issue tracker for each one, and close them when they are solved. It will help monitor them.

Posted: **Mon May 26, 2014 4:41 pm**

I haven't had a chance to try this out yet, but I just wanted to say it looks great from the description and screenshot! I can't wait to give it a go.

Posted: **Mon May 26, 2014 4:58 pm**

Roland_Yonaba wrote:What-.
Hats off. You sir, are awesome.

EDIT: Since this has known issues, i'd suggest filing a issue using github's issue tracker for each one, and close them when they are solved. It will help monitor them.

Thanks!
And good idea, I just moved them over to the issue tracker.

Posted: **Mon May 26, 2014 5:35 pm**

Wow.

Is it currently possible to play a specific seed as sound, something like :

Code: Select all

local sound = sfxr.newSound({seed = 38754})
sound:play()

?

Posted: **Mon May 26, 2014 6:22 pm**

Yeah, that would be

Code: Select all

local sound = sfxr.newSound()
sound:randomize(38754)
love.audio.newSource(sound:generateSoundData()):play()

Going to add sound:play() now, though

EDIT: Added!

Posted: **Mon May 26, 2014 7:03 pm**

Yes another tool! Do we need a LÖVE tool section

?

Reminds me to start developing my positional soundsystem for löve. Has someone already done something like this?

Posted: **Tue May 27, 2014 2:21 pm**

Afaik, the inbuilt audio API supports positional sounds for mono sources.

Posted: **Tue May 27, 2014 3:31 pm**

nucular wrote:Afaik, the inbuilt audio API supports positional sounds for mono sources.

I know, but i have to build it into my game and the editor. It's no that easy to find the right setup and mixing. I haven't seen a löve game that uses this features.

Posted: **Sat May 31, 2014 1:59 pm**

I just added support for exporting the sound in the RIFF WAV format. It's as easy as calling Sound.exportWAV with a path string. Alternatively, you can also pass Lua file handlers or open love.filesystem.File instances. It also supports exporting in 16 or 8 bits and with 44100 or 22050 Hz sample rate.

EDIT: I'll add this functionality to the demo when I finish my little file dialog thingy for LoveFrames, or somebody else creates a similar thing.

LÖVE

sfxr.lua - Generate sounds dynamically at runtime

sfxr.lua - Generate sounds dynamically at runtime

Re: Pure Lua port of the sfxr sound generator

Re: Pure Lua port of the sfxr sound generator

Re: Pure Lua port of the sfxr sound generator

Re: Pure Lua port of the sfxr sound generator

Re: Pure Lua port of the sfxr sound generator

Re: Pure Lua port of the sfxr sound generator

Re: Pure Lua port of the sfxr sound generator

Re: Pure Lua port of the sfxr sound generator

Re: Pure Lua port of the sfxr sound generator