<< Chapter < Page Chapter >> Page >

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.

rice

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softer-then-louder, like the word wah-wah), and overdrive (distorts the sound by adding harmonics and inharmonics, originally made by making the vacuum tube larger).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

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
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
research.net
kanaga
sciencedirect big data base
Ernesto
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
Daniel
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
Maciej
characteristics of micro business
Abigail
for teaching engĺish at school how nano technology help us
Anassong
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
NANO
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
s.
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
Tarell
what is the actual application of fullerenes nowadays?
Damian
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
Tarell
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
Virgil
is Bucky paper clear?
CYNTHIA
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
NANO
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Harper
Do you know which machine is used to that process?
s.
how to fabricate graphene ink ?
SUYASH Reply
for screen printed electrodes ?
SUYASH
What is lattice structure?
s. Reply
of graphene you mean?
Ebrahim
or in general
Ebrahim
in general
s.
Graphene has a hexagonal structure
tahir
On having this app for quite a bit time, Haven't realised there's a chat room in it.
Cied
what is biological synthesis of nanoparticles
Sanket Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
Privacy Information Security Software Version 1.1a
Good
Berger describes sociologists as concerned with
Mueller Reply
Got questions? Join the online conversation and get instant answers!
Jobilize.com Reply

Get the best Algebra and trigonometry course in your pocket!





Source:  OpenStax, Elec 301 projects fall 2015. OpenStax CNX. Jan 04, 2016 Download for free at https://legacy.cnx.org/content/col11950/1.1
Google Play and the Google Play logo are trademarks of Google Inc.

Notification Switch

Would you like to follow the 'Elec 301 projects fall 2015' conversation and receive update notifications?

Ask