Bass effects

Last updated
A selection of bass effect pedals at a music store. Bass effects - EH, fulltone, MXR, Demeter, AMT.jpg
A selection of bass effect pedals at a music store.

Bass effects are electronic effects units that are designed for use with an electric bass and a bass amplifier, or for an upright bass and a bass amp or PA system. Bass effects are commonly available in stompbox-style pedals, which are metal or plastic boxes with a foot-operated pedal switch or button which turns the effect on and off. Most pedals also have knobs to control the tone, volume and effect level. Some bass effects are available in 19" rackmount units, which can be mounted in a road case. As well, some bass amplifiers have built-in effects, such as compression, overdrive or chorus.

Contents

Fuzz

By the mid- to late-1960s, some bands listed "fuzz bass" in addition to "electric bass" on their album credits.[ citation needed ] Album or performance credits for fuzz bass can be found from every decade since.[ citation needed ]

In the 1960s and early 1970s fuzz bass was associated with psychedelic music, progressive rock, and psychedelic soul/funk styles. Created by a small and usually simple electronic circuit, fuzz bass tended to be a "warmer", "smoother", and "softer" overdrive-type sound caused by soft, symmetrical clipping of the audio signal which "round[ed] off the signal peaks" [1] them and filtered out the harsher high harmonics.

In the 1990s and 2000s, fuzz bass was also used by indie and alternative rock bands.

Overdrive and distortion

Demonstration of the overdrive effect on a 6 string bass with a Darkglass pedal.

Overdriving a bass signal significantly changes the timbre, adds overtones (harmonics), and increases the sustain.

In the 1980s and 1990s, overdriven bass was associated with hardcore punk, death metal, grindcore and Industrial bands.

Bass distortion is generally achieved by hard clipping[ further explanation needed ] of the bass signal, which leaves in "harsher high harmonics that can result in sounds that are heard as jagged and spikey." [2]

Since the late 1980s, manufacturers have produced overdrive pedals specifically designed for the electric bass, which often maintain the fundamental "dry" signal mixed with the overdriven tone.

Chorus

Eden bass chorus pedal I-90. Eden bass chorus pedal I-90.jpg
Eden bass chorus pedal I-90.

A bass chorus is an electronic effect used with the electric bass to create a "shimmering" sound. Fundamentally the same as chorus pedals used on guitar, these circuits are optimized to suit a lower tonal range.

Upright bass

Upright bassists in jazz, folk, blues and similar genres typically use a piezoelectric pickup, which is mounted on the wooden bridge or between the bridge and the body. The pickup is then plugged into a bass amp or the PA system. Before the signal is plugged into a bass amp or PA system, many players use a bass preamplifier, a small electronic device that matches the impedance between the pickup and the amp or PA system. Bass preamps also allow for the gain of the signal to be boosted or cut. Some models also offer equalization controls, a compressor, and a DI box connection, which allows the signal to be plugged directly into a PA system or mixing board with an XLR cable.

Related Research Articles

<span class="mw-page-title-main">Effects unit</span> Electronic device that alters audio

An effects unit or effects pedal is an electronic device that alters the sound of a musical instrument or other audio source through audio signal processing.

Instrument amplifier

An instrument amplifier is an electronic device that converts the often barely audible or purely electronic signal of a musical instrument into a larger electronic signal to feed to a loudspeaker. An instrument amplifier is used with musical instruments such as an electric guitar, an electric bass, electric organ, synthesizers and drum machine to convert the signal from the pickup or other sound source into an electronic signal that has enough power, due to being routed through a power amplifier, capable of driving one or more loudspeaker that can be heard by the performers and audience.

Guitar amplifier Electronic amplifier for musical instruments

A guitar amplifier is an electronic device or system that strengthens the electrical signal from a pickup on an electric guitar, bass guitar, or acoustic guitar so that it can produce sound through one or more loudspeakers, which are typically housed in a wooden cabinet. A guitar amplifier may be a standalone wood or metal cabinet that contains only the power amplifier circuits, requiring the use of a separate speaker cabinet–or it may be a "combo" amplifier, which contains both the amplifier and one or more speakers in a wooden cabinet. There is a wide range of sizes and power ratings for guitar amplifiers, from small, lightweight "practice amplifiers" with a single 6-inch speaker and a 10-watt amp to heavy combo amps with four 10-inch or four 12-inch speakers and a 100-watt amplifier, which are loud enough to use in a nightclub or bar performance.

DI unit Audio signal conversion device

A DI unit is an electronic device typically used in recording studios and in sound reinforcement systems to connect a high-output impedance, line level, unbalanced output signal to a low-impedance, microphone level, balanced input, usually via an XLR connector and XLR cable. DIs are frequently used to connect an electric guitar or electric bass to a mixing console's microphone input jack. The DI performs level matching, balancing, and either active buffering or passive impedance matching/impedance bridging to minimize unwanted noise, distortion, and ground loops. DI units are typically metal boxes with input and output jacks and, for more expensive units, “ground lift” and attenuator switches.

Limiter Electronic amplitude limiting device

In electronics, a limiter is a circuit that allows signals below a specified input power or level to pass unaffected while attenuating (lowering) the peaks of stronger signals that exceed this threshold. Limiting is a type of dynamic range compression. Clipping is an extreme version of limiting.

Scholz Research & Development, Inc. Music technology company

Scholz Research & Development, Inc. was the name of the company founded by musician and engineer Tom Scholz to design and manufacture music technology products.

Electro-Harmonix Guitar pedals company

Electro-Harmonix is a New York City-based company that makes electronic audio processors and sells rebranded vacuum tubes. The company was founded by Mike Matthews in 1968. It is best known for a series of guitar effects pedals introduced in the 1970s and 1990s. EHX also made a line of guitars in the 1970s.

Fuzz-wah

A fuzz-wah pedal is a stomp box containing both a fuzzbox and wah-wah pedal in series, allowing the user to distort ("wah") and use "fuzz" sounds as aesthetic effects on electric guitar or bass. They were developed to combine the sounds of psychedelic bands of the late 1960s–'70s.

<span class="mw-page-title-main">Clipping (audio)</span> Form of waveform distortion

Clipping is a form of waveform distortion that occurs when an amplifier is overdriven and attempts to deliver an output voltage or current beyond its maximum capability. Driving an amplifier into clipping may cause it to output power in excess of its power rating.

Ibanez Tube Screamer Guitar overdrive pedal

The Ibanez Tube Screamer (TS808/TS9) is a guitar overdrive pedal, made by Ibanez. The pedal has a characteristic mid-boosted tone popular with blues, rock and metal players. The Tube Screamer has been used by many guitarists to create their signature sound, and is one of the most successful, widely copied, and custom-modified ("modded") overdrive pedals in the history of the electric guitar.

Bass amplifier Electronic amplifier for musical instruments

A bass amplifier or "bass amp" is a musical instrument electronic device that uses electrical power to make lower-pitched instruments such as the bass guitar or double bass loud enough to be heard by the performers and audience. Bass amps typically consist of a preamplifier, tone controls, a power amplifier and one or more loudspeakers ("drivers") in a cabinet.

<span class="mw-page-title-main">Guitar tech</span>

A guitar technician is a member of a music ensemble's road crew who maintains and sets up the musical equipment for one or more guitarists. Depending on the type and size of band, the guitar tech may be responsible for stringing, tuning, and adjusting electric guitars and acoustic guitars, and maintaining and setting up guitar amplifiers and other related electronic equipment such as effect pedals.

<span class="mw-page-title-main">Fuzz Face</span>

The Fuzz Face is an effects pedal for electric guitar, used also by some electric bass players. It is designed to produce a distorted sound referred to as "fuzz", originally achieved through accident such as broken electrical components or damaged speakers.

Distortion (music) Electronic manipulation of audio signals to increase their gain

Distortion and overdrive are forms of audio signal processing used to alter the sound of amplified electric musical instruments, usually by increasing their gain, producing a "fuzzy", "growling", or "gritty" tone. Distortion is most commonly used with the electric guitar, but may also be used with other electric instruments such as electric bass, electric piano, and Hammond organ. Guitarists playing electric blues originally obtained an overdriven sound by turning up their vacuum tube-powered guitar amplifiers to high volumes, which caused the signal to distort. While overdriven tube amps are still used to obtain overdrive, especially in genres like blues and rockabilly, a number of other ways to produce distortion have been developed since the 1960s, such as distortion effect pedals. The growling tone of a distorted electric guitar is a key part of many genres, including blues and many rock music genres, notably hard rock, punk rock, hardcore punk, acid rock, and heavy metal music, while the use of distorted bass has been essential in a genre of hip hop music and alternative hip hop known as "SoundCloud rap".

Tube sound Characteristic quality of sounds from vacuum tube amplifiers

Tube sound is the characteristic sound associated with a vacuum tube amplifier, a vacuum tube-based audio amplifier. At first, the concept of tube sound did not exist, because practically all electronic amplification of audio signals was done with vacuum tubes and other comparable methods were not known or used. After introduction of solid state amplifiers, tube sound appeared as the logical complement of transistor sound, which had some negative connotations due to crossover distortion in early transistor amplifiers. However, solid state amplifiers have been developed to be flawless and the sound is later regarded neutral compared to tube amplifiers. Thus the tube sound now means 'euphonic distortion.' The audible significance of tube amplification on audio signals is a subject of continuing debate among audio enthusiasts.

<span class="mw-page-title-main">Glossary of jazz and popular music</span> List of definitions of terms and jargon used in jazz and popular music

This is a list of jazz and popular music terms that are likely to be encountered in printed popular music songbooks, fake books and vocal scores, big band scores, jazz, and rock concert reviews, and album liner notes. This glossary includes terms for musical instruments, playing or singing techniques, amplifiers, effects units, sound reinforcement equipment, and recording gear and techniques which are widely used in jazz and popular music. Most of the terms are in English, but in some cases, terms from other languages are encountered.

BJFE Guitar Effects is a company which manufactures effects pedals for use with instruments such as an electric guitar. These pedals are commonly used by guitarists to modify the sound of their guitar before it reaches the amp. The company is located in Sweden, and was founded in 2000 by Björn Juhl. "BJFE" stands for Björn Juhl Förstärkarelektronik. Pedal types include distortion, overdrive, "vibe" (vibrato), compression, and equalization (EQ). Due to the limited production and handbuilt nature, these pedals are considered "boutique" guitar effects.

Fuzz bass

Fuzz bass, also called "bass overdrive" or "bass distortion", is a style of playing the electric bass or modifying its signal that produces a buzzy, distorted, overdriven sound, as the name implies. Overdriving a bass signal significantly changes the timbre, adds higher overtones (harmonics), increases the sustain, and, if the gain is turned up high enough, creates a "breaking up" sound characterized by a growling, buzzy tone.

<span class="mw-page-title-main">Keyboard amplifier</span>

A keyboard amplifier is a powered electronic amplifier and loudspeaker in a wooden speaker cabinet used for amplification of electronic keyboard instruments. Keyboard amplifiers are distinct from other types of amplification systems such as guitar amplifiers due to the particular challenges associated with making keyboards sound louder on stage; namely, to provide solid low-frequency sound reproduction for the deep basslines which keyboards can play and crisp high-frequency sound for the high-register notes. Another difference between keyboard amplifiers and guitar/bass amplifiers is that keyboard amps are usually designed with a relatively flat frequency response and low distortion. In contrast, many guitar and bass amp designers purposely make their amplifiers modify the frequency response, typically to "roll off" very high frequencies, and most rock and blues guitar amps, and since the 1980s and 1990s, even many bass amps are designed to add distortion or overdrive to the instrument tone.

Heavy metal bass

Heavy metal bass is the use of the bass guitar in the rock music genres of heavy metal and hard rock. The bassist is part of the rhythm section in a heavy metal band, along with the drummer, rhythm guitarist and, in some bands, a keyboard player. The prominent role of the bass is key to the metal sound, and the interplay of bass and distorted electric guitar is a central element of metal. The bass guitar provides the low-end sound crucial to making the music "heavy". The bass plays a "... more important role in heavy metal than in any other genre of rock."

References

  1. "Howard Davis: Soft, Hard, & Intermodulation Distortion Explained".
  2. "Effects Explained: Overdrive, Distortion, and Fuzz". Archived from the original on 2015-12-22. Retrieved 2015-12-16.