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Technology is amazing. For example, when I wake up in the morning, I reach for my smartphone and turn-on some music to start my day. And yes, those are the opening lyrics to “More than a Feeling” by Boston, you can put away your smartphone now.

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Barry Goudreau, Tom Scholz, Sib Hashian, Brad Delp, Fran Sheehan, in 1977.

But what you may not know is that Tom Scholz, the founding member of Boston and its primary songwriter, attended MIT and actually invented a guitar pedal to use. In doing so, Scholz joined the long tradition of musicians discovering ways to change their sound to make theirs sounds different, unique, and interesting. Witness the vast number of trumpet mutes: straight, cup plunger, bucket, harmon stem in/stem out. But because the electric guitar needs electronics to even make a sound, guitarists realized that by changing the electronics, they could create new and interesting sounds. In the 1950’s and 60’s, guitarists changed the electronics by actually physically modifying (breaking) the hardware by using razor blades to cut up the cones in the amplifiers to make the guitar sound “gritty.” Soon, guitarists soon realized that instead of breaking the current technology, they could simply create ones to deliberately change the sound --and the guitar pedal was born.

In doing so, Scholz joined the long tradition of musicians discovering ways to change their sound to make theirs sounds different, unique, and interesting. Witness the vast number of trumpet mutes: straight, cup plunger, bucket, harmon stem in/stem out. But because the electric guitar needs electronics to even make a sound, guitarists realized that by changing the electronics, they could create new and interesting sounds. Guitarists soon realized that they could simply create new electronics to deliberately change the sound --and the guitar pedal was born.

There is a “signal chain” where the electrical guitar is connected to the “guitar pedal” which is then connected to the large amplifier. The effects can be split into three main areas: volume and dynamic, modulation, and time-based effects. Dynamic effects include those of compression (makes dynamic range of guitar smaller), wah-wah (makes sound louder-then softer-then-louder, like the word wah-wah), and overdrive (distorts the sound by adding harmonics and inharmonics, originally made by making the vacuum tube larger). Modulation effects can include a flanger (adds the time-delayed output to itself in various intervals, resulting in a comb-filter in frequency domain), phase shifters (change the phase in frequency domain). Time-based effects include delay (play sound after fixed period), and reverberation (make a reverberation sound by making delays of a sound in smaller and smaller amplitude).

Currently, the Eventide “Pitchfactor” is one of the current leaders in pitch-modification. One of the cool effects that the “Pitchfactor” can do is output harmonized notes at a specific delay. Using this device, a guitar player can harmonize with himself and even make chords. However, the “Pitchfactor” is $500, so our group tried to see if we could make a similar effect at much cheaper cost.

Citation: Wikipedia, "Effects Units"

Questions & Answers

where we get a research paper on Nano chemistry....?
Maira Reply
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
Google
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
revolt
da
Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
Jyoti Reply
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
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Source:  OpenStax, Elec 301 projects fall 2015. OpenStax CNX. Jan 04, 2016 Download for free at https://legacy.cnx.org/content/col11950/1.1
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