![Bass effects - EH, fulltone, MXR, Demeter, AMT](https://upload.wikimedia.org/wikipedia/commons/4/4a/Bass_effects_-_EH%2C_fulltone%2C_MXR%2C_Demeter%2C_AMT.jpg)
Bass effects are electronic
effects unit
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.
Common effects include distortion/overdrive, often used with electric guitar in el ...
s that are designed for use with an
electric bass and a
bass amplifier, or for an
upright bass
The double bass (), also known simply as the bass () (or #Terminology, by other names), is the largest and lowest-pitched Bow (music), bowed (or plucked) string instrument in the modern orchestra, symphony orchestra (excluding unorthodox addit ...
and a bass amp or
PA system. Bass effects are commonly available in
stompbox
A stomp box (or stompbox) is a percussion instrument consisting of a small box placed under the foot, which is tapped or stamped on rhythmically to produce a sound similar to that of a bass drum. A stomp box allows a performer such as a singe ...
-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
Overdrive may refer to:
Organizations
* OverDrive, Inc., a digital distributor of entertainment media
** OverDrive Media Console, a media player developed by OverDrive, Inc.
* Overdrive PC, a subsidiary of Velocity Micro
Technology
* Overdrive ...
or
chorus
Chorus may refer to:
Music
* Chorus (song) or refrain, line or lines that are repeated in music or in verse
* Chorus effect, the perception of similar sounds from multiple sources as a single, richer sound
* Chorus form, song in which all verse ...
.
Fuzz
By the mid- to late-1960s, some bands listed "
fuzz bass
Fuzz bass 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) ...
" in addition to "electric bass" on their album credits. Album or performance credits for fuzz bass can be found from every decade since.
In the 1960s and early 1970s fuzz bass was associated with
psychedelic music
Psychedelic music (sometimes called psychedelia) is a wide range of popular music styles and genres influenced by 1960s psychedelia, a subculture of people who used psychedelic drugs such as LSD, psilocybin mushrooms, mescaline, and cannabis to ...
,
progressive rock
Progressive rock (shortened as prog rock or simply prog; sometimes conflated with art rock) is a broad genre of rock music that developed in the United Kingdom and United States through the mid- to late 1960s, peaking in the early 1970s. Init ...
, and
psychedelic soul/
funk
Funk is a music genre that originated in African American communities in the mid-1960s when musicians created a rhythmic, danceable new form of music through a mixture of various music genres that were popular among African Americans in the m ...
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
doff the signal peaks" 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
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
Hardcore punk (also known as simply hardcore) is a punk rock music genre and subculture that originated in the late 1970s. It is generally faster, harder, and more aggressive than other forms of punk rock. Its roots can be traced to earlier punk ...
,
death metal
Death metal is an extreme subgenre of heavy metal music. It typically employs heavily distorted and low-tuned guitars, played with techniques such as palm muting and tremolo picking; deep growling vocals; aggressive, powerful drumming, feat ...
,
grindcore
Grindcore is an extreme fusion genre of heavy metal and hardcore punk that originated in the mid-1980s, drawing inspiration from abrasive-sounding musical styles, such as thrashcore, crust punk, hardcore punk, extreme metal, and industrial. G ...
and
Industrial
Industrial may refer to:
Industry
* Industrial archaeology, the study of the history of the industry
* Industrial engineering, engineering dealing with the optimization of complex industrial processes or systems
* Industrial city, a city dominate ...
bands.
Bass distortion is generally achieved by hard clipping of the bass signal, which leaves in "harsher high harmonics that can result in sounds that are heard as jagged and spikey."
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](https://upload.wikimedia.org/wikipedia/commons/a/a2/Eden_bass_chorus_pedal_I-90.jpg)
A
bass chorus
A bass chorus is an electronic effect used with the electric bass. It creates the same "shimmering" sound as a chorus effect for electric guitar chorus pedals, which recreates the sound of having multiple instruments doubling the same musical line ...
is an electronic
effect
Effect may refer to:
* A result or change of something
** List of effects
** Cause and effect, an idiom describing causality
Pharmacy and pharmacology
* Drug effect, a change resulting from the administration of a drug
** Therapeutic effect, a ...
used with the
electric bass to create a "shimmering" sound. Fundamentally the same as
chorus pedal
Chorus (or chorusing, choruser or chorused effect) is an audio effect that occurs when individual sounds with approximately the same time, and very similar pitches, converge. While similar sounds coming from multiple sources can occur naturally, ...
s used on guitar, these circuits are optimized to suit a lower tonal range.
Upright bass
Upright bass
The double bass (), also known simply as the bass () (or #Terminology, by other names), is the largest and lowest-pitched Bow (music), bowed (or plucked) string instrument in the modern orchestra, symphony orchestra (excluding unorthodox addit ...
ists in jazz, folk, blues and similar genres typically use a
piezoelectric pickup
A pickup is a transducer that captures or senses mechanical vibrations produced by musical instruments, particularly stringed instruments such as the electric guitar, and converts these to an electrical signal that is amplified using an instru ...
, 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
A DI unit (direct input or direct inject) 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 ...
connection, which allows the signal to be plugged directly into a PA system or mixing board with an
XLR cable.
References
{{Bass (sound)
Bass (sound)
Electric bass guitars