Howdy everyone, I've just finished up a massive rewrite of zzfx.

http://zzfx.3d2k.com

https://github.com/KilledByAPixel/ZzFX

This is a JavaScript sound effect generator similar to bfxr but a little simpler. The really cool part if you use this, you don't need to mess with wave files at all. Just a play seeded sounds with a simple function call like, ZZFX.z(6)!

The browser has had a major upgrade also and is much more user friendly. There options to lock, reset and mutate parameters. You can even save out the sound as a wave file!

ZzFX Features

• Tiny synth engine with 9 controllable parameters.
• Small code footprint for full version and the micro version is under 500 bytes!
• Can produce a wide variety of sound effect types.
• Seeded sounds can be played with a tiny function call, ex: ZZFX.z(6)
• Seeded sound paramerters can be overridden, ex: ZZFX.z(26,{frequency:600})
• Random number generator ZZFX.R can be used in place of Math.random().
• Use ZZFX.M to make music notes, ex: ZZFX.m(440, 7) // 7 semitons above 440hz (A4)

ZzFX UI Features

• Generate random sounds from seed.
• Stores sounds in list with local storage persistence.
• Parameters can be modified for more control.
• Lock, reset and mutate buttons for each parameter.
• Displays image of sound wave when played.
• Sounds can be download as a wave file.
• Mark sounds as favorites to keep them from being cleared.
• List of sounds can be exported and imported.

Here's the latest version of the ZzFXmicro JavaScript code you can use directly!

// ZzFXmicro - Zuper Zmall Zound Zynth - MIT License - Copyright 2019 Frank Force zzfx_v=.5;zzfx_x=new AudioContext;zzfx=(e,f,a,b=1,d=.1,g=0,h=0,k=0,l=0)=>{let S=44100,P=Math.PI;a*=2*P/S;a*=1+f*(2*Math.random()-1);g*=1E3*P/(S**2);b=0<b?S*(10<b?10:b)|0:1;d*=b|0;k*=2*P/S;l*=P;f=[];for(var m=0,n=0,c=0;c<b;++c)f[c]=e*zzfx_v*Math.cos(m*a*Math.cos(n*k+l))*(c<d?c/d:1-(c-d)/(b-d)),m+=1+h*(2*Math.random()-1),n+=1+h*(2*Math.random()-1),a+=g;e=zzfx_x.createBuffer(1,b,S);a=zzfx_x.createBufferSource();e.getChannelData(0).set(f);a.buffer=e;a.connect(zzfx_x.destination);a.start();return a}