The sampling rate, measured in kilohertz is the number of time per second the audio wave form is recorded for frequency and loudness. Standard CD players have a frequency response of 44 100 times per second, while a DVD player has a frequency response of 96 000 times per second.
a measure of a device's ability to respond to inputs of different frequency, usually expressed as an amplitude vs frequency plot or more simply as the -3db (decibel) frequency limits. Related to time constants
A plot or graph of frequencies that an audio device, such as a mic, amplifier or speaker, can accurately reproduce within stated parameters or conditions.
A measure of the output of gain of a device across a range of frequencies of the input signal.
1) A range of frequencies stated with level limits: ie, "The woofer's response was 20-160Hz ±3dB." 2) The uniformity with which a system or individual component sounds as if it reproduces the range of audible frequencies. Equal input levels at all frequencies should be reproduced by a system with subjectively equal output.
A common measure of video or audio signal path performance where a gain is plotted against frequency. Usually plotted in decibels (dB) over a given frequency range. Sometimes phase or delay vs frequency responses are optionally added.
A system's gain characteristic versus frequency. Frequency response is often stated as a range of signal frequencies over which gain varies by less than a specified amount.
A device to transmit or receive a given range of frequencies.
Ability of a device to reproduce a frequency. Hi-fi equipment generally has wide, even frequency response, reproducing all frequencies (within its capability) equally.
The range of frequencies the speaker will reproduce (lowest frequency to the highest). The optimal range is 20-20,000 Hz, the range of human hearing. Many high-quality tweeters, however, are able to reproduce frequencies well above 20,000 Hz. While those ultra-high frequencies are not audible to the human ear, they contain harmonics that can affect the way listeners perceive sound and its nuances.
(circuit/system) The measure of how the gain or loss of a circuit, device, or system varies with frequency. Also called frequency characteristic, amplitude- frequency response, response, response characteristic, and sine-wave response.
The range of frequencies of sound that an audio system is capable of recording.
The range of frequencies the speaker will reproduce (lowest frequency to the highest). The wider the range, the better. While the optimal normal is 20 - 20,000 Hz (Hertz), the range of human hearing for individuals is often much more restricted. A good speaker system however, will reproduce as much of this range as possible, to cover all variations.
This specification is designed to indicate the range of frequencies a speaker will reproduce. This specification is only meaningful if accompanied by a tolerance specification, expressed as +/- x dB, that indicates the amount of deviation within the rated range. For a speaker to accurately reproduce, say, a 40Hz tone, it must be able to do it at the same volume as all the other frequencies. Ideally, you'll want your speakers to reproduce the widest range of frequencies possible so you can hear all the music. Because no single speaker can play all frequencies accurately, many people choose to add separate subwoofers and tweeters to existing systems. For a subwoofer, the important part of the frequency range is the deep bass. Generally, the closer a subwoofer can get to reproducing 20Hz, the better. The tricky thing about frequency response is making sure it's playing all the sounds it claims to play at a similar volume, which is indicated with a tolerance specification of +/- x (usually 3 or 6) dB. Frequency response specifications without a tolerance notation cannot be taken very seriously.
The variation in level of a device with frequency. Most relevant with different types of microphone.
The gain verses frequency characteristic of a device or a system relative to the ideal. It is also referred to as peak to valley response.
The ability of a system or elements of the system to react or respond to a change in system frequency.
A sensor used to measure vibration will not have the same sensitivity over the whole range of frequencies. This variation known as the frequency response can be determined and taken account of.
A graphical representation showing a device's relative amplitude as a function of frequency.
Which sound waves frequencies are amplified by the hearing aid is its frequency response. Literally meaning which frequencies the device responds to. It will depend both on user need and the environment they are in.
(electronics) a graph of frequency response with signal amplitude or gain plotted against frequency
(electronics) a response depicting the output-to-input ratio of a transducer as a function of frequency
The frequency-dependent characteristic that determines the phase and amplitude relationship between sinusoidal input and output.
The response of a system to a fixed input voltage, at different input frequencies. Same as frequency domain response.
This is the audible range of sound a particular component can reproduce. Most people can hear from 20 to 20,000Hz.
The response of a component, instrument, or control system to input signals at varying frequencies.
The relative loudness of sound output over the entire range of frequencies. Frequency response is usually expressed as +/- dB (decibel) or as a graph.
The principal measures of the fidelity of any sound reproducing device.
Frequency response for an incremental encoder is the maximum frequency of the output signal in Hertz.
the span of frequencies over which the load cell output follows the changeable sine wave mechanical input (within specified limits)
The range of frequencies over which a device or audio system will perform.
The characteristic of a device denoting the range of frequencies over which it may be used effectively.
A measure of the amplitude vs. frequency performance of an audio component, measured from its input to its output. A perfect electronic device should have a flat, or linear, frequency response over its useful frequency range, indicating that it reproduces all frequencies at the correct level. Loudspeakers are more complicated since the output is sound which is radiated in all directions. It is necessary to measure the frequency response at many locations all around the loudspeaker in order to be able to predict how it may sound in a room. For loudspeakers, there is no single frequency response measurement that is completely descriptive of its performance. See: Transfer Function, Spectrum.
The amplitude of the transfer response of a circuit or device plotted against the frequency interval over which the response occurs.
This is the level of frequency the MP3 player can handle. The better the frequency response, the higher quality music that will be played back.
A graph of a system's response to a different frequency input signals.
The range and balance of sound across the audio spectrum Good sound reproduction requires that all audible frequencies (approx. 20 - 20,000 Hz) are reproduced at roughly the same volume, although the highest and lowest octaves are less important.
A term which describes the relationship between a devices is input and output with regard to signal frequency and amplitude.
Measurement of an audible signal's amplitude and phase characteristics relative to a given, absolute level.
The range of frequencies that are reproducible by a speaker or electronic component.
A graph showing how a micro-phone responds to various sound frequencies. It is a plot of electrical output (in decibels) vs. frequency (in Hertz).
Ability of a system or elements of a system to respond to changes in the frequency within the system.
A measure of audio clip quality. The higher a clip's frequency response, the more frequencies it can faithfully reproduce.
The range of band of frequencies to which a unit of electronic equipment will offer essentially the same characteristics.
CDs and MDs are both able to reproduce the full spectrum of sound frequencies that are audible to the human ear.
The range of frequencies that a speaker, microphone or an audio device reproduces.
Refers to what frequencies can be reproduced and how accurately they are reproduced. 20 Hz - 40 Hz - Low Bass 40 Hz - 80 Hz - Mid Bass 80 Hz -160 Hz - Upper Bass 160 Hz - 320 Hz - Lower Midrange 320 Hz - 640 Hz - Midrange 640 Hz - 1.28 kHz - Upper Midrange 1.28 kHz - 2.56 kHz - Lower Treble 2.56 kHz - 5.12 kHz - Mid Treble 5.12 kHz - 10.2 kHz - Upper Treble 10.2 kHz - 20.4 kHz - Top Octave
The range of frequencies from the lowest to the highest that a particular electronic circuit is capable of handling without distortion. Most circuits have limits to the range of frequencies that they can handle. Frequency response is measured in cycles per second or Hz. The human ear has a frequency response of about 20 to 20,0000 Hz because it can hear and distinguish sounds within this range. In audio systems, a frequency response matching this performance of the ear would be considered high-fidelity. For security systems, audio frequency responses of 50 to 12,000 Hz should be considered sufficient.
A measure of what frequencies can be reproduced and how accurately they are reproduced. A measurement of 20 to 20,000 Hz ± 3dB means those frequencies between 20 and 20,000 Hz can be reproduced no more than 3 dB above or below a reference frequency level.
The frequency response tells you what a microphone puts out as opposed to what it gets in and can give you some valuable clues for targeting its usage. It is simply a measure of what parts of the microphone's bandwidth is boosted, cut or not there at all.
the range of frequencies recordable by a recording system.
Ability of the photographic sound track to reproduce the full spectral range of sounds.
The range of frequencies over which the load cell output will follow the sinusoidally varying mechanical input within specified Limits.
This plot graphically shows how the interpolation process responds to spatial frequencies in the original data. The horizontal axes show cycles per sampling interval and the vertical axis gives the relative strength of how those frequency components will be passed on to the interpolated signal. The ideal frequency response is a box of height 1.0 which spans the interval between -1/2 and +1/2 cycles per sample. Note that the frequency response plots have a logarithmic scale on the vertical axis.
A measure of what frequencies can be reproduced by a given component and how accurately they are reproduced.
The range where a consistent or constant level (in decibels) is found after testing a speaker system with sine waves. Also, the statement of the results of this measurement, expressed in decibels of the change in amplitude within the constant frequency amplitude range, for example: +/- 2 dB from 60 Hz to 20 kHz. Generally, a wide range with low variation in amplitude in that range is desirable.
Speakers & Headphones : - The wider the range of the frequency response the better the range of sound from low bass (20Hz) upwards to High treble (20KHz). The human ear can generally perceive between the range of 20Hz-15KHz.
Indication of how well a circuit responds to different frequencies applied to it.
A graph of amplitude gain or loss, versus frequency, for an RF component. It is used to describe how the particular component behaves as the signal's frequency changes.
Sometimes called magnitude response, it is the measurement of the amplitude linearity of a component over a given frequency range. Frequency response is probably the most important aspect of audio system performance but there are different opinions about what is to be measured. A big problem with many recordings, even some contemporary ones, is that the microphones chosen to make them often have poor frequency response. The biggest problem with some of the studio-monitor speakers that are still being used to edit those recordings is their limited or ragged frequency response, particularly in the reverberant field. Using studio-located equalizers to compensate for those deficiencies results in recordings that are improperly equalized for playback on high-quality home speakers. See also Direct field; Reverberant field.
In audio, the ability of a system to convey music from the deepest bass frequencies to the highest treble. In video, the ability of a system to convey high resolution, which corresponds to high video frequencies.
The frequency range to which a system, or any part of it, can respond.
Range over which a speaker, amplifier or source unit can effectively produce a useable and fairly uniform, undistorted output signal.
A specification that indicates how evenly a component or system reproduces frequencies in the audio spectrum. This specification must include a tolerance. A plus/minus decibel figure that indicates the severity of response deviations: closer tolerances are better.
Also listed as Frequency range, is the spectrum of frequencies produced by a product, within a certain tolerance. For example, a frequency response of 30Hz to 18kHz (+/- 3dB) means a product produces all frequencies from 30Hz to 18kHz without dropping or peaking three decibels. The signal below and above that range does drop off more than 3dB, so the range is really the usable spectrum of sound.
The measured accuracy within db limits of a piece of audio equipment. For instance, hi-fi loudspeaker manufacturers specify the tolerance limits (usually +/-3dB) of each model alongside the operating frequency range (typically 50Hz - 20kHz).
A measure of what frequencies can be reproduced and how accurately they are reproduced. A measurement of 20 to 20,000 Hz ±3 dB means that frequencies between 20 Hz and 20,000 Hz can be reproduced no more than 3 dB too loud (twice as loud) or 3 dB too soft (half as loud).
All of our CD players accurately reproduce the full range of frequencies audible to the human ear.
It identifies the speaker bandwidth, the limits within which it can be used with a linear response.
The way in which an electronic device such as a microphone responds to signals having a varying frequency. a flat frequency response indicates that the device handles signals of all frequencies in the same way, without favoritism. Some components boost certain frequencies or do not respond well to all frequencies. Frequency response is defined to be a characteristic of a system or a device, not a characteristic of a signal.
In regular recording mode, the MiniDisc format accurately reproduces the full range of frequencies audible to the human ear — 20 to 20,000 Hz. (MDLP and ATRAC3plus recordings may deliver a narrower range of frequencies.) However, compressed MiniDisc audio (that is, audio recorded in any mode other than the PCM mode offered by Hi-MD recorders), does offer slightly lower sound quality than uncompressed CD audio.
This is the range of sound that a component reproduces accurately. Human beings (who haven't attended too many rock concerts) can hear from about 20Hz (low bass) to 20,000Hz (very high treble).
Range over which an audio component can effectively produce a useable and fairly uniform, undistorted output signal.
The range within a driver can clearly reproduce undistorted sound waves.
The amplitude versus frequency characteristics of a device. Also may refer to the range of frequencies over which the device operates within prescribed performance
Describes the uniformity of acoustical output as a function of frequency expressed in terms of a range in hertz and the maximum deviation in decibels over that range.
The range of frequencies that a component is capable of playing. This measurement is meaningless unless a tolerance is included, like +/- 3dB. A wider frequency response and narrower tolerances indicate better performance.
The portion of the audible frequency range (20-20,000 Hz) a deck can reproduce. Several values may be shown: one for standard (type I) tape, one for high-bias (CrO2) tape, and one for metal tape (where applicable).
Measurement of the ability of a component to pass signals. This is depicted as a curve which assumes that the input signal is of equal strength at all frequencies.
The usable frequency bandwidth of a speaker, amplifier, or source unit. Usually stated as lower to upper frequency with a deviation in decibels, or relative loudness. Example: Frequency Response of 10Hz to 40kHz +/- 1dB.
(Measurement and Inspection) The maximum frequencies an analog sensor can track. All analog sensors have an inherent response time that limits their ability to measure periodic motions at high frequencies.
The range of frequencies over which the transducer voltage output will follow the sinusoidally varying mechanical input within specified limits.
The lowest and highest parts of the frequency spectrum that can be reproduced by an audio component within specific limits and tolerances.
The range of frequencies which a loudspeaker will reproduce.
Variation in the displayed amplitude of a signal as a function of frequency (flatness). Typically specified in terms of ± dB relative to the value midway between the extremes. Also may be specified relative to the calibrator signal.
A measure of a component's ability to reproduce all frequencies equally. Sometimes called magnitude response, it is the measurement of the amplitude linearity of a component over a given frequency range. It is usually presented as a plot of the output of a device versus frequency. The term is sometimes used to characterizes the range of frequencies over which a device is designed to operate without stating dB range of variations. The perfect frequency response should theoretically be flat ( a straight line graph ), however, most components exhibit some dips and peaks in the signal; varying to some degree from a perfect response Most amplifiers and other electronic audio components can easily reproduce the entire audible spectrum. However, speakers that can reproduce the entire audile spectrum are more difficult to create. Excessive fluctuations in a curve indicate colorations, which can result in muddy, tinny, boomy or dull sound
A rating that indicates the frequency range over which an instrument will respond uniformly or within specified limits. The frequency response is an important parameter in evaluating the dynamic response of an instrument.
A Bode plot of input to output response of an amplifier or attenuator for sine waves with constant amplitudes at different frequencies over a frequency range.
The range of frequencies the speaker will reproduce (lowest frequency to the highest). The optimal range is 20-20,000 Hz, the range of human hearing. Many high-quality tweeters, however, are able to reproduce frequencies well above 20,000 Hz. While the human ear can't detect these ultra-high frequencies, they do contain harmonics that affect the way listeners perceive sound and its nuances.
refers to the range of frequencies gear will accurately reproduce from input to output. The average person can hear frequencies from 20Hz-20kHz. When reading frequency responses, the spec may refer to the tolerance—the maximum level the output will differ from the input. If not specified, the tolerance is probably a standard ±3dB. The spec (20Hz-20kHz ±3dB) means that for a given input signal, the listed range of frequencies (20Hz-20kHz) will produce output within the specified range of levels (±3dB). Any frequencies and outside this range may or may not be within the range of levels. As an example, the frequency response of a Shure SM57 is a vocal-tailored 50Hz to 15kHz
The measure of a servo's ability to respond to various input frequencies.
Frequency response is the measure of any system's response at the output to a signal of varying frequency (but constant amplitude) at its input. It is usually referred to in connection with electronic amplifiers, loudspeakers and similar systems. The frequency response is typically characterized by the magnitude of the system's response, measured in dB, and the phase, measured in radians, versus frequency.