Feedback vs Echo - What's the difference?
feedback | echo |
Critical assessment on information produced
(cybernetics, systems) The signal that is looped back to control a system within itself.
The high-pitched howling noise heard when there's a loop between a microphone and a speaker.
(music) To generate the high-frequency sound by allowing a speaker to cause vibration of the sound generator of a musical instrument connected by an amplifier to the speaker.
To provide informational feedback to.
To convey by means of specialized communications channel.
A reflected sound that is heard again by its initial observer.
* Shakespeare
* Alexander Pope
*
* {{quote-magazine, year=2013, month=May-June, author=
, title= (figurative) Sympathetic recognition; response; answer.
* Fuller
* Robert Louis Stevenson
(computing) The displaying on the command line of the command that has just been executed.
The letter E in the ICAO spelling alphabet.
(of a sound or sound waves) To reflect off of a surface and return.
(by extension) To repeat back precisely what another has just said: to copy in the imitation of a natural echo.
* (John Dryden)
* Keble
(by extension) To repeat (another's speech, opinion etc.).
* {{quote-magazine, year=2013, month=July-August, author=
, title=
As nouns the difference between feedback and echo
is that feedback is critical assessment on information produced while echo is a reflected sound that is heard again by its initial observer.As verbs the difference between feedback and echo
is that feedback is to generate the high-frequency sound by allowing a speaker to cause vibration of the sound generator of a musical instrument connected by an amplifier to the speaker while echo is to reflect off of a surface and return.feedback
English
(wikipedia feedback)Noun
(-)- After you hand in your essays, I will give both grades and feedback .
Usage notes
* Adjectives often used with "feedback": positive, negative, delayed, linear, nonlinear, etc.Synonyms
* (noise) Larsen effect * (noise) howlback * (noise) howlroundDerived terms
* biofeedback * feedbacker * feedback loop * feedback control * howlback * negative feedback * positive feedbackCoordinate terms
* feedforward * bufferingDescendants
* Spanish: (calque)Verb
(en verb)- The show ended with a riot of feedbacking guitars.
- His employees feedbacked him a lot more than he wanted.
- Customers feedbacked their complaints and some praise.
Usage notes
* Some are likely to prefer "feed back" and its inflected forms "feeds back", "feeding back", or "fed back". ----echo
English
Alternative forms
* (l) (obsolete) * (l) (obsolete)Noun
(en-noun)- The babbling echo mocks the hounds.
- The woods shall answer, and the echo ring.
William E. Conner
An Acoustic Arms Race, volume=101, issue=3, page=206-7, magazine=(American Scientist) , passage=Earless ghost swift moths become “invisible” to echolocating bats by forming mating clusters close (less than half a meter) above vegetation and effectively blending into the clutter of echoes that the bat receives from the leaves and stems around them.}}
- Fame is the echo of actions, resounding them.
- Many kind, and sincere speeches found an echo in his heart.
Derived terms
* echoacousia * echo boomer * echocardiogram, echocardiography * echogenic, echogenicity * echogram * echolalia * echo organ * echopathy * echophonocardiography, echophony * echoplex * echo-ranging * echo sounder * echo stop * echotexture * hypoechoicVerb
(es)- Those peals are echoed by the Trojan throng.
- The wondrous sound / Is echoed on forever.
Sarah Glaz
Ode to Prime Numbers, volume=101, issue=4, magazine=(American Scientist) , passage=Some poems, echoing the purpose of early poetic treatises on scientific principles, attempt to elucidate the mathematical concepts that underlie prime numbers. Others play with primes’ cultural associations. Still others derive their structure from mathematical patterns involving primes.}}