# How to prototype analog audio processing?

How to prototype analog audio processing?

Should I merely trial with analog electronics or should I simulate the circuits in software first?

Particularly, I'm interested in discovering new forms of processing. Fine tuned designs over existing designs. I have ideas regarding "what I want to hear", but how should I attempt reaching it?

• Particularly, I'm interested in discovering new forms of processing. Go for it, don't let anybody tell you it's all been discovered. A simulator won't tell you what you're going to hear, but it can be a good way to make sure things are going to work before you build them, or debug what you think should happen when it doesn't. – Neil_UK Dec 31 '17 at 12:25
• @Neil_UK But how am I supposed to interpret the sound of the circuit using a simulator? Since it's digital and the real electronics would contain analog? Also what tools allow passing audio signals through the circuits and listening the output? – mavavilj Dec 31 '17 at 12:27
• Perhaps this? livespice.org Any others? – mavavilj Dec 31 '17 at 12:29
• @Neil_UK LTspice takes wav files as inputs and can generate them as outputs. I've done this multiple times to simulate how certain filters could sound before I build them. Hard to do stuff like monte carlo simulation etc though :) – pipe Dec 31 '17 at 12:37
• Can't say enough good about Wolf's SpectrumLab for Windows: en.freedownloadmanager.org/Windows-PC/Spectrum-Lab-FREE.html It works intimately with a PC's audio codec, and has lots of tools that can be inserted into the audio path. Learning-curve is considerable, but it is very capable. – glen_geek Dec 31 '17 at 18:38