Turn the TV off if you can (you can’t in most bars!), or just move away from it as much as possible. If, for example, the HISS gets louder as get close to a TV, you have found a noise source. Place the phone right up against the pickups.) (Try this with a cell phone and single coil pickups. Turn your amp and ax all the way up, and walk around, holding the pickups up near different “suspected sources of HISS” (this works best with single coils, not humbuckers). This is why, unless you stand very close to a noise source, external electronics are not usually the culprit when it comes to HISS problems.Īs with HUM and BUZZ, you can “sniff out” these kinds of HISS noise sources. HISS is more like white noise, with no discernible tones.īut, to avoid interference with legit radio signals or other electronic gear, the FCC generally regulates the amount of high frequency noise that a device can put into the air. A WHINE differs from HISS in that you can hear certain high pitched, constant tones, usually in a pretty dissonant, unmusical fashion. These may exhibit what we call HISS, or it may be more of a WHINE. The most common HISS sources are digital equipment, like computers or TVs, or any other electronic device with high frequencies in its circuits. Most likely, you are using single coil pickups and have a HISS noise-source nearby. (This is called EMI, or “electromagnetic interference”. Then the HISS is radiated through the air into your pickups. If it DOES go away (when you turn the guitar down) How do you decide which it is? The solution is easy:ĭoes it go away when you turn the ax down? Radiated noise (comes through the air into your ax pickups). Is it:Ĭonducted noise (comes through wires into your gear) You just may not hear it until you turn it up loud enough.Īs always, we can test for where hiss comes from. HISS is usually related to smaller stuff…electronic noise. This makes it an easier problem to figure out. Unlike HUM and BUZZ, HISS almost never comes from the AC power source. Amps at 11 can give you that extra edge, but you may be just as happy (and quieter) at 9. The more gain you have, from all pedals and amps, the more noise you will have. See Improving Signal-to-Noise Ratio (SNR). Right away this can strike a lethal blow to any noise that might crop up. A simple jiggle test at both ends will usually tell you. If it DOES NOT (go away when your turn the guitar down)īy good, we mean “not broken”. Also included are several helpful articles on general best-practices for noise reduction. In the Guitar Noise Manual, Jody starts by breaking down guitar rig noise into 6 types:ġ) BUZZ 2) HUM 3) HISS 4) DIGITAL NOISE (WHINE) 5) POWER SUPPLY NOISE 6) CABLE MICROPHONICSįor each noise, Jody explains its causes, then offers a targeted set of solutions. Jody Page, PedalSnake’s inventor and lifelong pro guitarist, is an electrical engineer (a member of NASA’s Space Foundation Hall of Fame, no less) with special training in electrical noise. HISS Most often encountered by high gain players SOUNDS LIKE “shhhhhhhhhh”, a high-pitched white noise
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