the process in which part of the output of a system is returned to its input.
Term used to describe condition caused by return flow of electrical energy or sound.
That annoying tone or set of tones that occur because the sound of the speaker is getting into the microphone. It can be caused by the direct sound from the speaker getting into the microphone but is more often caused by the room reverberations that are excited by the speaker getting into the microphone.
(1) Return of part of the output of a machine, process or system to the computer as input for another phase; typically used for surveillance, self-correcting maintenance or control purposes. (2) Means of comparing or providing actual performance which can be compared with planned performance.
Voltage from the output of a circuit is channeled (or "fed") back into the input of the circuit.
An important concept in circuit design and control systems where the difference between the output and the desired out (the error signal) is used to help correct the output.
1) The insertion of a delayed program signal back to the input for use in echo effects. 2) The pickup and re-amplification of an output signal by its input resulting in an unwanted "howling" sound.
Most generally this is a phenomenon where the output of a system is fed or cycled back into the input of the system, thus changing the output, etc. This is equivalent to saying that a system is nonlinear.
This occurs when part of the output signal returns to the input side of the electronic device.
Giving test subjects information regarding their test performance or receiving their input as to how they perceived the testing procedures.
An unwanted sound which is produced by the sound from a loudspeaker feeding into a mic and then back through the loudspeaker, creating a loop. It is a very unpleasant sound, sometimes - very appropriately - known howlround. One who knows adds this: also what you get from your friends and family after the performance, when all you really want to do is have a drink and then go home to bed.
a. Video: Distortion of the picture caused when a video signal re-enters the switcher and becomes overamplified. b. Audio: Unpleasant howl from loudspeaker caused when the loudspeaker sound inadvertently is fed into the microphone and subsequently overamplified.
The return of a portion of the output of a circuit to its input.
Feedback is sometimes experienced by hearing aid wearers and is best described a high-pitched screeching sound.
a sound produced by a string or microphone picking up and amplifying its own signal from a loudspeaker.
Regeneration of sound from audio speakers back through a microphone causing a squealing sound.
A portion of the output signal of an amplifier which is connected back to the input of the same amplifier. also see: AKA: Antonym: Source: http://www.twysted-pair.com/dictionary.htm
Squealing, howling, or ringing sounds from the speakers caused by the sound cycling through the mikes and speakers when the mike levels are too high and/or the mikes are too close to the speakers. Feedback is less common with low impedance mikes.
The process by which the effect of an event can also cause that event. There are two forms: positive feedback (strengthening the event) and negative feedback (weakening it). Simple examples of feedback are seen with sound systems. If a microphone picks up the sounds from a loudspeaker that it's connected to, positive feedback amplifies some of he sounds, and the result is a screeching sound. When a sound amplifying system works as intended, it uses negative feedback: the (loud) output signal of an amplifier is compared with the (soft) input signal, and automaticlaly modified so that it becomes an accurate reflection of the input, only louder.
the return of a portion of the output of any process or system to the input.
The returning of a fraction of the output of an electric oscillation to the input.
Loud screech caused when sound goes in a mic, gets amplified, comes out a speaker, and the speaker sound goes back into the mic, creating an endless loop.
(circuit) The recycling of a portion of an output to the input of the circuit.
The cause of the squealing noise that is heard when someone has a radio speaker operating too close to the transmit microphone is audio feedback. Radio frequency feedback can occur when radio energy finds its way back into the transmitter through microphone or power cables.
The use of information produced at one stage in a series of operations as input at another, usually earlier, stage.
This is what the user sees in response to an action on their behalf. Such as an answer to a computer generated question that requires user input.
The squeal, ringing or rumble caused by the sound from the loudspeakers reaching the microphones and travelling back through the system over an over at a resonant frequency. The frequency of any feedback is determined by the characteristics of the room and the equipment.
A loud screeching noise caused by a sound being picked up by a mic., amplified, played through speakers and picked up by the mic., amplified... The solution is to either turn everything down to a level where feedback does not occur, or turn down only the frequencies which ate feeding back, with a graphic equaliser.
In acoustics, the undesirable leakage of audio from loudspeakers back into a microphone, resulting in a loud squeal or howling sound, or in less severe cases, a hollow ringing sound quality or whistles.
The transmission of current or voltage from the output of a circuit or device back to the input, where it interacts with the input signal to modify the operation of the circuit or device.
Refers to a process where at least a portion of a signal is returned from the output to the input of a circuit. External feedback--A process where an external physical signal path extends from the output to the input of an amplifier. Internal feedback--A less obvious form of feedback, typified by a common impedance element appearing in both the input and output circuits of an amplifier. There is no explicit feedback path around the amplifier.
A term that describes what occurs when too much amplified sound escapes from the ear and is picked up by the microphone of the hearing aid causing a high-pitched whistling sound. The whistling persists until turning down the gain control reduces the amplification of the hearing aid.
output recycled back into the system; comments and opinions about something to help improve it Feedback from the speakers nearly deafened the audience. They were hoping for a positive feedback from the survey.
Anonymous pacing or comprehension input provided to a Presenter by Participants. This can be done by the participants at any time and as often as necessary.
The loud discomforting whistling or squealing that sometime emanates from hearing aids is called feedback. It is caused when boosted sound that has left the aid re-enters it, and is boosted again.
Positive feedback in an amplification loop causes the output signal to grow uncontrollably, and results in the annoying squeal when a microphone gets too close to a loudspeaker. Negative feedback is a technique intentionally employed in typical amplifier designs to reduce distortion. Hence, positive feedback is a negative quality , and negative feedback is a positive quality (some folks dispute the latter). If engineers didn't make things hard to understand we wouldn't get paid so much.
The return of part of the output of a machine, process, or system to the computer as input for another phase, especially for self correction or control purposes. (7/96)
Usually a high-pitched squeal caused by an audio system going into oscillation. This occurs when a microphone is too close to the speaker that is broadcasting the audio from the microphone.
The sensing of the output (actuator) acted upon by the computer, used to maintain an output device within predetermined limits.
A loop caused by audio or video signal being fed back into itself. In video the effect is caused when a camera is directed at its receiving monitor. In audio the effect, manifested as an echo or squeal, is caused when a microphone is aimed at a speaker.
is the delaying of a repeated signal to produce multiple images of the original signal. The loud squeal created when a channel is receiving its own output such as an open microphone held in front of a speaker when both are connected to the same amplifier.
The process where part of an output is fed back into the input to enable action to be taken to increase or reduce the output. Positive feedback results in increased output whereas negative feedback results in reduced output.
A linking of the output of a system back to the input. Traditionally this can be negative, tending to return the system to a wanted state, or positive tending to diverge from that state. Life employs both methods.
taking part of the signal from the output and passing it back to the input
a portion of a function's output which is returned, or 'fed back' to its input
the squeal/whistle a hearing aid makes when amplified sound from the receiver reaches the microphone and is re-amplified.
Sound produced by a guitar amplifying its own sound.
The return of a portion of the output signal to a device's input. A common source of feedback is sending the output of a guitar amp's speaker into a guitar's pickups, by stepping close to the amp.
Self-oscillation caused by a regenerating signal loop between the guitar pickup or microphone and the amp and speaker.
In Amplifiers: the practice of connecting (feeding back) a portion of the output signal to the input so that it can be compared to the input signal and errors corrected. The signal must be inverted (negative feedback) to prevent oscillation, or uncontrolled, very loud, howling (positive feedback). Positive feedback is sometimes experienced in public address systems as a ringing or howling when too much of the amplified sound is picked up by the microphones.
Used in completing a closed loop system. A signal transmitted from the output of a system back to the input where it is used to adjust for any errors between desired and actual output position. (see encoder and closed loop)
Feedback is a shrill, high-pitched sound that can happen when sound amplification systems (microphones, amplifiers, speakers) are in use. It occurs when part of the original amplified sound gets picked up by the microphone and re-amplified. This produces an echo. The re-amplified sound turns into feedback if the amplifier is turned up too loud.
Connecting the output of a circuit back to the input(s) using a variety of circuit components
Howling noise caused by microphone picking up sound from the speakers.
The noise produced when the amplified sound from a loudspeaker is picked up by the microphone feeding that speaker. Also caused by feeding the output of a source directly back to its input
the usually annoying a sound produced when a string or microphone picks up and amplifying its own signal from a loudspeaker; because of their nature, some tonewoods used to make acoustic guitars are more prone to this problem than others.
Sound produced by an instrument or microphone picking up and amplifying its own signal from a nearby loudspeaker. Also known as 'howlaround'.
Once a recommended treatment has been approved by the Cabinet, the project team will ask for input from all stakeholders in the district. This will be in the form of an online survey to give all employees an opportunity to provide suggestions for changing or improving the implementation plan.
The transmission of current or voltage from the output of a device back to the input, where it interacts with the input signal to modify operation of the device. Feedback is positive when it's in phase with the input and negative when it's out of phase.
A signal which is transferred from the output back to the input for use in a closed loop system.
That loud ringing sound you hear when the microphone crosses the speakers.
Feedback is the return of input, comments, opinion and assessments.
Some or all of the output of the device (such as an amplifier) taken back to the input. This may be accidental (such as feedback from a speaker) or intentional, to reduce distortion.
The flow of information from those who have experience to those who need the information. [D02317] DSMC Information ( data) extracted from a process or situation and used in controlling (directly) or in planning or modifying immediate or future input action s or decision s) into the process or situation [D00673] PMK87
(the use of part of the output of a system to control it's performance. positive or negative.)
A portion of the output signal of an amplifier which is connected back to the input of the same amplifier. Related Terms: current feedback | voltage feedback
Taking some or all of the output of a system and adding it to a system's own input. See also: System.
Feedback consists of information about the nature of an action and its result, in relation to some criterion of acceptability. It is never-ending input of one sort or another. ( Deterline, 1992, p. 294)
the reinvestment of some of the profits into new inputs within the factory system.
A portion of the output signal of a device or system which is applied to the input of the system.
The high-pitched whistling sound that can be emitted by a hearing aid when the hearing aid's microphone picks up its own output, thus re-amplifying itself.
Energy that is fed from the output of a circuit back to its input.
The noise produced when the amplified sound from an output (eg loudspeaker) is picked up by the input (eg microphone) feeding that speaker.
a condition in which the output of a circuit recycles through its input. Acoustic feedback is a whine or howl that occurs in live audio situations when an amplified sound re-enters a sound system through the same microphone (or guitar pickup) that reproduced the original source, creating a loop.
The process in which part of the output is returned to the source in order to regulate the productivity of a system
Acoustic or structure-borne vibrations that interfere with the operation of audio equipment. For example loud deep bass emanating from a loudspeaker may upset the performance of a turntable such that the pickup stylus reads the interference as bass signal. In extreme instances a loop of sound may be created resulting in high frequency instability; the more usual effect is a loss of clarity to the music signal. Bass becomes woolly and the rest of the signal unfocused. See also Negative Feedback.
Feedback in a closed loop system represents the return signal or response of the system to input instruction.
( howlround) The returning of a loudspeaker signal back into a... ( more)
In a PA system consisting of a microphone, amplifier, and loudspeaker, feedback is the ringing or howling sound caused by amplified sound from the loudspeaker entering the microphone and being re-amplified. Flat Response - A frequency response that is uniform and equal at all frequencies.
Portion of the output signal routed back to the input of an electronic component at a reversed polarity and used to reduce distortion, reduce gain, or change frequency response.
The output or result of the output that is measured and sent back to the controller for comparison with the input during closed loop operations.
The output from a position sensor indicating the position, or state, of the valve.
(1) Distortion of the video picture caused when video signals re-enter the switcher and become over-amplified. (2) An unpleasant howl from the audio speaker, caused when sound is inadvertently fed into the microphone and is over-amplified.
Howl or squeal produced when a microphone or pickup is too near its speaker, thus picking up its own output and reamplifying it. Correctly called acoustic feedback. Used in electronic circuit to return parts of the output signal to the input in order to cancel out some of the circuit's deficiencies.
Unwanted interaction between the output and input of an acoustical system, for example, between the loudspeaker and the microphone of a system.
The routing of some of the output of a device back to its input. In filter terms this results in an increased resonance.
Regeneration of sound from audio speakers back through the audio source, causing a hum or high-pitched sound
The whistling sound made when amplified sound goes back into the microphone. In a hearing aid, feedback can occur when an earmold does not fit well and the amplified sound goes back into the hearing aid microphone. There are additional causes for feedback and persistent feedback should be discussed with your parent advisor or audiologist.
a process created by the output of a system which permits the system to maintain stability of its internal function; in family systems theory, a continuous process of input and output exchanges between families and the community that surrounds them.
A howling, ear piercing noise produced by leakage of the output of an amplification system back into its input. - Category: Recording
A principle of fuel system design wherein a signal from an oxygen sensor in the exhaust system is used to give a computer the input it needs to properly regulate the carburetor or fuel injection system in order to maintain a balanced air/fuel ratio. Also