A port of sfxr from C++ to AS3, using the new sound and file capabilities of Flash Player 10.

Choose from 4 different osciltors - square, saw, sine and noise. Adjust the 22 parameters to find a sound effect you like. Then save it out as a .wav file, or save the parameter settings to load back in later and tweak the sound further.

Features 7 'generator' functions, which produce random but familiar game sounds such as pickup/coin, laser/shoot and explosion.

ADDED:

• Copy and paste settings as a simple line of text, for easy sharing.
• History buttons to let you go back to a sound you liked.

ADDED:

• Caching for sounds and mutations
• On the fly playing for sounds and mutations

You can use the SfxrSynth class in your own code to generate sfx on the fly, without the need to import .wav files. Find a sound you like using the app, copy out the settings and paste them right into your code:

var synth:SfxrSynth = new SfxrSynth();
synth.setSettingsString("0,,0.271,,0.18,0.395,,0.201,,,,,,0.284,,,,,0.511,,,,,0.5");
synth.play();

The playMutated() method allows you to play a slightly mutated version of your sound, without losing the original settings. All the mutated sounds will therefore be based around the original sound, whereas just using the mutate() method changes the settings each time causing the sound to drift away from the original. The mutation parameter controls the size of the mutation

var synth:SfxrSynth = new SfxrSynth();
synth.setSettingsString("0,,0.271,,0.18,0.395,,0.201,,,,,,0.284,,,,,0.511,,,,,0.5");
setInterval(synth.playMutated, 1000, 0.05);

The caching methods cacheSound() and cacheMutations(), along with the playCached() and playCachedMutation() methods allow you to generate the full wave whenever you like, before playing the cached wave. Reading from the wave ByteArray is a lot faster than creating the wave as it plays.

var synth:SfxrSynth = new SfxrSynth();
synth.setSettingsString("0,,0.271,,0.18,0.395,,0.201,,,,,,0.284,,,,,0.511,,,,,0.5");
synth.cacheSound();
...
synth.playCached();

sfxr was originally created by Tomas Pettersson: http://www.ludumdare.com/compo/2007/12/13/sfxr-sound-effects-for-all/

Enjoy!