Guitar effects technology

If the modern HiFi amplifier or tube amplifier clips when you use it to play back audio recording, you are doing it wrong. With tube guitar amplifiers pushing it to clipping to get certain distorted sound is often intentional. Modern take to get the same guitar sound is to use DSP based effect pedals to get the right distorted sound that is fed to modern class D amplifier. Nothing is run physically to clipping.

Here are some links to information on guitar effects:

Most DISTORTED Guitar Tone Possible?!
https://www.youtube.com/watch?v=TkO-yau7jdQ

What does distortion look like?
https://www.youtube.com/watch?v=pFSX93aPzmw

Understanding Distortion (Pt2) – Diode Clipping circuits
https://www.youtube.com/watch?v=6Qs1H2qTAWI

Demonstration of Overdrive, Distortion and Fuzz effects on oscilloscope and with a guitar signal
https://www.youtube.com/watch?v=8NjeHHroOgI

The World’s Largest Guitar Pedalboard (world record)
https://www.youtube.com/watch?v=iWRfLuJ_NKw

She sings through guitar pedals and it sounds AMAZING
https://www.youtube.com/watch?v=77iUH208XaI

Modeling A Guitar For Circuit Simulation
https://hackaday.com/2023/08/19/modeling-a-guitar-for-circuit-simulation/

Guitar effects have come a long way from the jangly, unaltered sounds of the 1950s when rock and roll started picking up steam. Starting in large part with [Jimi Hendrix] in the 60s, the number of available effects available to guitarists snowballed in the following decades step-by-step with the burgeoning electronics industry. Now, there are tons of effects, from simple analog devices that would have been familiar to [Hendrix] to complex, far-reaching, digital effects available to anyone with a computer. Another thing available to modern guitarists is the ability to model these effects and guitars in circuit simulators, as [Iain] does.

[Ian] plays a Fender Stratocaster, but in order to build effects pedals and amplifiers for it with the exact desired sound, he needed a way to model its equivalent circuit. For a simple DC circuit, this isn’t too difficult since it just requires measuring the resistance, capacitance, and inductance of the overall circuit and can be done with something as simple as a multimeter. But for something with the wide frequency range of a guitar, a little bit more effort needs to go into creating an accurate model. [Iain] is using an Analog Discovery as a vector network analyzer to get all of the raw data he needs for the model before moving on to some in-depth calculations.

Guitar Pickup Equivalent Circuits
https://macalisterelectronics.com/guitar-pickup-equivalent-circuits.html

An equivalent circuit of a guitar’s pickups, tone/volume controls and cable is useful when designing input stages for effects pedals or amplifiers. It makes simulations or calculations of how input networks modify the spectrum of the guitar’s output more realistic. This article covers some background on the topic and then goes into a technique for measuring the output impedance of a guitar and how to deduce the values of an equivalent circuit from the measurement. The equivalent circuit of a Stratocaster are given in the Conclusion at the end of this page.

Sebastian of Baltic Lab demonstrates how to implement overdrive and distortion effect DSP algorithms on the Arduino GIGA R1 WiFi
https://baltic-lab.com/2023/08/dsp-diode-clipping-algorithm-for-overdrive-and-distortion-effects/

Open Source Analog Effects Pedal
A modular platform for developing and trading guitar (and other) audio effects. Focus on, but not limited to, pure analog signal path.
https://hackaday.io/project/2311-open-source-analog-effects-pedal

Guitar Distortion With Diodes In Code, Not Hardware
https://hackaday.com/2023/08/23/guitar-distortion-with-diodes-in-code-not-hardware/

Guitarists will do just about anything to get just the right sound out of their setup, including purposely introducing all manner of distortion into the signal. It seems counter-intuitive, but it works, at least when it’s done right. But what exactly is going on with the signal? And is there a way to simulate it? Of course there is, and all it takes is a little math and some Arduino code.
https://baltic-lab.com/2023/08/dsp-diode-clipping-algorithm-for-overdrive-and-distortion-effects/

Guitar Effects With No (Unwanted) Delay
https://hackaday.com/2021/03/15/guitar-effects-with-no-unwanted-delay/

Raspberry Pi Pico – Guitar To MIDI
https://www.youtube.com/watch?v=Fu0Qsz2h3HE