I know how to make a pedal less noisy. But I'm not sure how to make it MORE noisy. Cap? Resistor? Diode? Not sure how to execute this. A customer of mine is really into noise pedals and the pedal I made for him was "too clear" and wanted it "more noisy". He basically wanted a switch to keep the pedal as is but when he flips it it'll make more noise (static, a TINY bit of distortion, or the guitar signal sounding more..... Rusty?). If it helps any; it's a digital delay.
Ceramic caps
Carbon film resistors
Longer wires
Bigger resistors in the signal path
tell him to get a strat with single coils
At one time, I was planning how to do the same thing for an effect one of my kids wanted...never assembled it as he was happy with the glitchiness of the Fuzz Factory I made him. The plan involved blending a zener diode white-noise circuit into the signal path just after the regular fuzz effect. I might have to go back and tinker with that again, just to see if it works. ;)
Edit: play the strat under fluorescent lights, too.
Cascade two sections of TL072 with gain=100 each stage. You get around 20mV wide-band hiss, which when mixed will be audible. Need more to cover mix-loss, up the gain of both stages. Want more annoying, cut bass and extreme highs with the usual tricks. For random grunge in a circuit which overloads, low-pass at 80Hz and shove huge level into the input. Subsonics will blip the circuit to distortion.
Check out the wind machine on this forum.
Also, is it possible he wants it to sound more analog/BBD? Maybe try adding some filtering / low pass
There are kind-of three different things you mention there:
1) Noise/Hiss
You could actually generate this and add it in. Either with a high-gain op-amp like Paul suggested or a single-transistor noise source.
2) Static
This is the hard one, I reckon. Some random staticky clicks and pops isn't going to be easy to fake. If I was doing it, I'd program up a random static generator on a PIC, but I can't imagine a *simple* way with analog.
3) Lo-fi sound
You can get this by limiting the frequency range of the guitar with filters, so that you get that "on a cheap radio/on the telephone" sound. Coupled with running it through the cheapest, nastiest old transistor you can find from a broken toy, you'll be pretty close.
Perhaps you could achieve both (1) and (2) by getting one of those single-chip FM receivers and then running it not-tuned and/or without an arial. That'd get some interesting random noise into the circuit.
HTH,
Tom
Digital Delay?
Somewhere there is low pass filtering going in and out of the delay. Remove the filtering - it will be grungy.
Put resistance in series with the signal. The bigger the resistance, the more of them, the greater the noise. A 1M series resistor at the input should do the trick!
Quote from: mth5044 on March 06, 2017, 11:58:02 PM
Also, is it possible he wants it to sound more analog/BBD? Maybe try adding some filtering / low pass
+1
On this topic, read through the PT-80 doc for a decent explanation of how to make a digital delay sound more analog:
http://www.generalguitargadgets.com/wp-content/uploads/pt80techinfo.pdf
Quote from: EBK on March 06, 2017, 10:43:47 PM
Ceramic caps
Carbon film resistors
Longer wires
Bigger resistors in the signal path
(http://i214.photobucket.com/albums/cc196/digi2t/Two%20Face%20Fuzz/DSCF4146_zps672b4e9c.jpg) (http://s214.photobucket.com/user/digi2t/media/Two%20Face%20Fuzz/DSCF4146_zps672b4e9c.jpg.html)
:)
(Schumann Two Face Fuzz... in case you were wondering.)
Mmmm! Spaghetti for dinner, honey?
i just tried this with what I had on my breadboard.
A Transistor noise generator with 2 gain stages -> into a Guitar Pickup Simulator with Tone control rolled off (Low pass Filter) -> into a simple Fuzz face (Fuzz knob at 100%)
It does make a cool sounding noise. With the LPF you can dial some crackling sounds.
note: the Gating effect from the Fuzz Face Bias has a great impact on the crackling sounds.
Definitely an overkill for what you are looking for, but I thought I'd share it anyway.
Diego
Quote from: digi2t on March 07, 2017, 08:09:47 AM
Quote from: EBK on March 06, 2017, 10:43:47 PM
Ceramic caps
Carbon film resistors
Longer wires
Bigger resistors in the signal path
(http://i214.photobucket.com/albums/cc196/digi2t/Two%20Face%20Fuzz/DSCF4146_zps672b4e9c.jpg) (http://s214.photobucket.com/user/digi2t/media/Two%20Face%20Fuzz/DSCF4146_zps672b4e9c.jpg.html)
:)
(Schumann Two Face Fuzz... in case you were wondering.)
Has the insurance claim been approved yet??
Quote from: GibsonGM link=topic=117028.msg1085642#msg1085642 date=1488
Has the insurance claim been approved yet??
/quote]
It got lost inside the pedal. Haven't recovered it yet.
Ok, I got inspired by this thread and got somewhat carried away. Here's my take on it. I call it Hiss, Crackle and Pop because that's what it's made of:
http://electricdruid.net/adding-vintage-hiss-crackle-and-pop/
If you just want to cut to the chase and hear it, here it is; the three elements separately, then the mix.
http://electricdruid.net/sounds/HissCracklePop.mp3
Enjoy!
Tom
Tom, that reminds me of my high voltage prank from yesterday. :icon_razz:
Very cool sound you've made. I have no particular use for it, but seeing (and hearing) it actually created makes me happy.
Is it maybe worth adding noises to the power supply rather than the signal itself?
I would try starving the voltage supply to the pedal.