【 Weak current College 】 HIFI CI Hai encyclopedia---Power By 【 China power house network 】

AAD
Refers to the sound recording and post-production to analog (A), and only the producer uses digital (D) means of CD recording.

A/B comparison audition (A/Bcomparison)
Refers to two different types of music playback mode to listen again and again.

Absolute polarity (absolutepolarity)
Using the absolute polarity of correct sound system to play the absolute polarity of sound recordings correctly, the sound is produced by the will of the sound pressure and the original sound of the sound pressure. Absolute polarity, will have a 180 ° phase difference. For some musical instruments, some people can hear the absolute polarity of correct or not.

Power Purifier (ACline-conditioner)
Means designed to filter to the AC power supply power supply noise and prevent audio equipment subject to peak voltage and surge damage a stereo auxiliary aids. Some power Purifier even can also be used to prevent lightning damage. In fact, power Purifier is a special design and manufacture of filters.

Sound-absorbing material (acousticabsorbed)
Means any kind of material absorbs sound, such as carpets, curtains and covered with thick cloth furniture and so on.

Acoustic diffuser (acousticdiffuser)
Means any material or non-acoustic devices.

Acoustic feedback (acousticfeedback)
Speaker sound will make LP singing up, microphone pickup equipment such as vibration, this vibration and transform into electrical signals, and replay from speakers again. In this feedback process, the vibration feedback for themselves and become increasingly intensified. Venue in the device due excessively high volume issued in Whistler is the acoustic feedback.

Acoustic Board (acousticpanelabsorber)
Refers to the use of diaphragm action to absorb from low frequency to the frequency of a sound-absorbing materials. When the sound wave to acoustic Board, vibration-absorbing plate will be to transform the sound energy to heat medium-small parts ofthe plate.

Acoustics (acoustics)
Refer to specialized research sounds a science. Also used to refer to the listening place on sound absorption and reflection characteristics, such as "the listening room acoustics good."

The AC synchronous motor (ACsynchronous)
Refers to the speed determined by the frequency of alternating current with determines the type of motor. Mostly used for belt drive electric roll-up.

AC-3
Dolby Digital (DD) 5.1 channel digital surround sound format, the original name.

Active crossover network (activecrossover)
Refers to the audio signal in low frequency, frequency zooming to segmentation and before they are added to their pronunciation unit to a power electronic circuits. Although active crossover network used for subwoofer, but in a multichannel system, can also be individually active crossover network.

Active subwoofer (activesubwoofer)
Refers specifically to replay the low frequency, and the built-in power amplifier to drive that kind of sound box.

ADD
Means the CD recording by simulation (A), and edit and producer are all adopt digital (D).

Analog/digital converter (ADC)
The analog signal into a digital signal circuit.

O single selective (adjacent-channelselectivity)
Means receiving tuner to select the desire to listen to the radio and radio interference suppression on nearby.

Select the next table (alternate-channelselectivity)
Means receiving tuner can be curbed and the wish to receive radio apart as second Taiwan interference to other radio stations.
AES/EBU digital connector (AES/EBUinterface)
A transfer of professional digital audio signal, AES/EBU interface signal line to use XLR Plug balanced transmission lines. In addition, in certain consumer electronics products. According to the United States AES (audio engineering society) and the EBU (European Broadcasting Union) to name.

Pressing sense (aggressive)
Used to represent the music as the vote to throw to a listener in front of the forward-performances of acoustics terminology.

Air sensor (air)
Used to represent the treble of the sound field broad, or in between in musical space interval of acoustics terminology. At this point, high-frequency response may be extended to 15kHz-20kHz. Antonym "gray (dull)" and "thick (thick)".

Air suspension sing arm (air-bearingtonearm)
Means of electric LP sing sing arm system with air cushion for support of a singing arm.

Air suspension electric roll-up (air-bearingturntable)
Refer to sing up by air cushion to hold up the roll-up.

Surround sensation (ambience)
Also called a siege. Means the movie sound generated by the activity that has a certain scale and space siege. Is usually to create a surround speaker.

AMPS (ampere)
Current measurement unit, with A representation.

Resolution (analytical)
Refers to the audio equipment to grilling the reproduction of sound recordings in every detail, but used the wrong way, this kind of analysis is very lack of musical taste.

Analog (analog)
A simulation of the letterNumber of voltage change is on a simulation of the acoustic, namely, the voltage varies with original acoustic wave and continuous change. And in binary using 0 and 1 representing the audio or video signal of a digital signal.

Image deformation (anamorphic)
Means a movie or video in widescreen image horizontally with the lens or the digital processing of the "narrowing" in order to adapt to the standard 4: 3 ratio of the amplitude and shape. Replay, the narrow via "back pressure" on the image to the original site-shaped than be reinstated. Image deformation of format without sacrificing resolution of cases, providing the correct picture type and performance.

Muffler (anechoic)
Literal sense is "no echo" mean.

Anechoic chamber (anechoicchamber)
A did not reflection room. In the anechoic chamber walls are laying a sound-absorbing performance sound-absorbing materials. Accordingly, the Interior will not have the reflection of sound waves. Anechoic room is designed to test the box, driver, etc.

Clear (articulate)
Means that audio equipment to be able to clearly distinguish the tone acoustics terminology.

Non-slip adjustment (anti-stateadjustment)
Means adding singing arm used to adjust the combined with singing arm force to offset the singing arm will naturally tend to slip on the inside.

Amplitude-ratio (aspectratio)
Also known as the aspect ratio, i.e. the display screen on the screen of the ratio of width to height. Standard TV's site-ratio 4: 3 (1.33: 1), wide screen TV and HDTV high definition television picture shape than the 16: 9 (1.78: 1).

ATRAC
Adaptive transform acoustic coding (adaptivetransformacousticcoding), Department of the Sony Corporation in its launch of MD magnetic disc machine using a low bit rate data compression technology.

Audio enthusiasts (audiophile)
Commonly known as "sound buffs" or "enthusiasts" refers to replay music sound extremely valued by some people.

Sound crazy (audiophilenervosa)
Those who always kept playing with audio equipment which is not very heartily to appreciate music blindly on audio fanatics.

A/V
For Audio (sound) and Video (video), and means both audio and visual characteristics of the AV products.

A/V input (A/Vinput)
Means both settings must have the audio and settings for video Sockets A/v receiver or A/V preamplifier input.

A/V circuit (A/Vloop)
Refers to the A/v receiver and A/V preamplifiers are those that are installed on the A/V inputs and A/V outputs, to talk to both recording and playback of audio and video signal of A/V equipment connected. For example, a VCR will be followed by A/v receiver or A/V front A/V amplifier circuit connection.

A/V preamplifier (A/Vpreamplifier)
Also known as "A/V controller" is used to control the volume, select the show source and complete surround sound decoding amplifier of audio equipment.

A/V front amplifier/tuner (A/Vpreamplifier/turner)
In the same chassis equipped with AM (amplitude modulation) or FM (FM) receiver tuner A/V preamplifier.

A/v receiver (A/Vreceiver)
As the heart of the home theater system. The program is responsible for receiving the signal source, select the desired signal to watch and listen to, control the volume of the playback, complete surround sound decoding, radio programmes, and will be selected by the signal in order to promote the magnification home cinema sets of speakers. Also known as the "surround sound receiver."
Azimuth (azimuth)
In tape recorders that recording heads and the tape the angle between the direction of travel, the ideal should be to 90 °; the LP-singing in the pointer arm with the angle between the surface of the disc.

Baffle (baffle)
Means the top is equipped with some pronunciation unit front panel of speakers.

Balance (balance)
Means the audio spectrum, high and low segment on the relative loudness between the existence of objective relations; also referred to as two-channel stereo left and right channel signal same (balance).

Balance connection (balancedconnection)
Refers to the audio equipment between a connection in a single cable in a 3 wires, a root is used to transfer audio signals, another is used to transmit the audio signal polar opposite, and another for the Earth.

Banana Sockets (bananajack)
Refers to the speaker and the power amplifier and speaker line up for banana plug connection of a small round shaped socket.

Banana plug (bananaplug)
Generally the speaker cable on both ends of the insert a banana socket plug.

Bandwidth (bandwidth)
Refers to the audio device can process or of the frequency range. For example, Dolby Surround sound in the surround channel bandwidth is 100Hz-7kHz. Surround only through frequency in 100Hz (bass) and 7kHz (high to low) frequency. The human ear can hear 20Hz-20kHz frequency range. Speaking about the electric or acoustic equipment and bandwidth, are most often referring to-3dB frequency range.

Bass (bass)
Means the audio and lowSection of sound, usually less than 500Hz (another said it means less than 160Hz).

Low-frequency extension (bassextension)
Refers to the audio equipment can replay the minimum frequency. System used to determine when a replay bass sound system or speakers can dive into what level of scale. For example, small subwoofer for low-frequency extension can to 40Hz, while large subwoofer you dive into 16Hz.

Bass Management (bassmanagement)
Refers to the A/v receiver or A/V preamplifier integrated control circuit, the system determines the appropriate speaker should be sent to the number of low-frequency signal.

Phase-speakers (bassreflex)
Also known as phase-type opening hole boxes, lines at the speaker panel on a down-hole (Groove) of a class speakers. As a result of having a hole inside voice can radiation outside. Phase-speaker than closed low frequency extension to sound better, but the bass is often not so strong and compact. Comparison of "infinite baffle" (infinitebaffle)

Dual power amplifier for driving (bi-amping)
Use two power amplifier to drive the same speaker in a special way, with a power amplifier to boost the bass unit; the other by a power amplifier to boost tenor and treble unit.

Large screen (bigscreen)
Means the intuitive color or rear-projection-projection big screen TV. Normally, the screen diagonal size mostly in more than 40 inches.

Special stereo recordings (binauralrecording)
Means intended to be mounted on the simulation of recording microphone on each person's ear channels within a special recording mode. Because of the physical structure of the simulation, the poll in the sound recording contains some specialspace information. When using headphones to listen to these recordings, we will produce different from reality but very strange sense of three-dimensional space.

Terminals (bindingpost)
Refers to the power amplifier and speakers and speaker on the exclusive use of the cable connection of the terminals.

Double-pole speaker (bipolarspeaker)
Point to the front and back, while a type of radiation acoustic sound. And dipole-speaker, bi-polar-speakers and to the radiation of the sound waves are the same phase.

Bipolar transistors (bipolartransistor)
Means using in the audio circuit is very common for a transistor. Bipolar is derived from current line in the two semiconductor materials flow. Bipolar transistor under voltage of polarity and can be divided into NPN or PNP type.

Bit (bit)
The basic unit of binary numbers. Usually at 0 or 1 in one of two States. The number of bits, the more the more simulated signals expressed as precise, on the audio signal to restore it, the better.

Bitrate (bitrate)
Means digital audio, or digital video signal per second the storage or transmission of the number of bits. For example, CD discs each channel's bitrate as 705600kbs, Dolby Digital (DD) 5.1 channel bit rate for the 384kbs. Higher bitrate often means you can get better audio quality.

Dual-tone (bi-wiring)
Refer to each speaker, the second set of speaker cables used to connect to a Terminal. With a group (a pair) speaker cable with speaker of the bass unit input connection; while another group speaker line followed the speaker's treble unit connection. Only those dedicated to two of the speakers on the input terminal to the double tap tone connection.

Waving (blanketed)
Means the treble, especially like the speaker front suspension as a blanket and the sound-absorbing materials to absorb very empty.

Black level (baacklevel)
In the display after a certain calibration device, not a line of light output video signal level.

Weak (bleached)
Used to indicate that those with a special focus on high-harmonic and instrumental music is not great attention and low harmonic and fundamental frequency of the sound equipment of vocal characteristics of acoustics terminology. Pale voice sounds will appear too light, thin and lack of warmth.

Air sensor (bloom)
Used to indicate that in musical instruments sound like air wrapping around the acoustics terminology.
Bang (bloomy)
Means about bass 125Hz overweight, especially in quite a wide frequency range. Due to the low-frequency or low frequency resonance damping isn't enough.

Counterfeit goods (boutiquebrand)
Those on the face of it appears to be the high-end audio, but actually just flashy and chassis are equipped with inferior components of fake and shoddy products.

Rendering (bloated)
Means the bass in the vicinity of 250Hz paragraph too strong. The low-frequency and low frequency of resonance damping. See "too rough" (tubby).

Fudge (blurred)
Means the transient response, stereo sound and image blur, pool.

Men (boxy)
Refer to hear music from closed out of the box and some resonance. Sometimes it means 250-500Hz a bit too strong.

Pot machines (break-in)
New buy-back of sound equipment is power time will allow playback of the sound quality better.

Bridge (bridging)
Means to increase the output power and the power amplifier and speakers for a particular connection. The bridge is the two-channel stereo amplifier grafting as single power amplifier. Go all the way by which it is responsible for enlargement wave amplifier'sJust half a week, while the other way to zoom in on a wave of negative half week, speakers are like two-channel amplifier channel of "bridges" between. Bridging requires two identical two-channel stereo amplifier.

Bright (bright)
Means to highlight the high frequency band 4kHz-8kHz, harmonic relatively stronger than fundamental. Bright itself does nothing, live performances in the concert are bright sounds, the problem is so bright to master, too bright (or even whistle) is annoying.

Luminance (brightness)
For video specifically refers to the video display screen on the amount of light.

-FAI Leung-signal (brightnesssignal)
With "Y" indicates that the video signal of the FAI Leung-signal contains all of the displayed information, color video signals for the luminance and chrominance signal in composite.

Sharp spines (brittle)
Used to indicate that the instrument timbre sounds harsh intermediate frequency or high frequency acoustic acoustic characteristics.

Buffer (buffer)
Refers to audio or circuit level be separated circuits. Preamplifier is the sound source and power amplifier with buffered between because preamplifier for sources reduces the burden of promoting power amplifier.

Through audition method (bypasstest)
As a way to listen to the audio equipment. This will be a test of audio equipment or access or no access signal, so you can judge the sound characteristics.

Correction (calibration)
Means to make audio or A/V audio and visual equipment work correctly and precisely adjust. In audio system, correction including all channel set level, whereas in the video device, the correction is good color, brightness, hue, contrast and other parameters.

Needle arm (cantilever)
By LP-sing up changtou-out and its top is equipped with a thin needle.

Capacitance (capacitivereactance)
Means a capacitor that rendered block low frequency adoption but high frequency to be adopted by a characteristic. The capacitor capacitance becomes a and frequency are dependence of impedance. Is the use of capacitor capacitance is connected to the capacitor treble unit, treble bass through and not let through.

Capacitors (capacitor)
A storage charge of electronic components. The power amplifier in storage capacitor systemsused to store energy in the DC power supply power supply filter capacitor, is used to filter for communication components; in amplifier circuits for coupling capacitor is used to Exchange audio signal and partition DC.

Capture ratio (captureratio)
To receive the tuner specification. Means the tuner lock a signal strong radio and suppress a radio signal is weak some, both radio signal strength of the DB value. Capture ratio lower the tuner performance is better.

Changtou eraser (cartridgedemagnetizer)
Means for eliminating the metal part changtou stray magnetic field of a type of equipment.
CAVLD laserdiscs (CAVlaserdisc)
Defined as the constant angular velocity (CAV) recording of LD discs. Whether laser picker where read signal, discs are always in constant rotation. Also known as the "well-formed" LD discs. Each face can be registered in the 30-minute program. See the "constant velocity" (CLV).

CD CD (compactdisc)
Means the Sony Corporation and Netherlands Philips jointly developed a diameter 12cm (individual as 8cm) recordable discs 74 minutes of music.

CD-R recordable CD
（CDRecordable）
That can be entered into a digital audio disc. CD-R as a recording of a disc. After the entry cannot be erased.

CD-ROM-compact disc-read only
Means are used to store computer data in a read-only type of discs.

CD-RW recordable disc can be erased (CD-Rewritable)
An entry can be erased and the repeated heavy recorded CD disc. But existing most of the CD player is unable to play the CD-RW discs.

Center Channel (centerchannel)
In a multichannel audio system, placed in the middle of watching the rooms and is located on the left and right front speakers in the middle of Central speaker is used to put the information in the central channel. In the Centre channel in almost all the dialogues in the movie.

Center channel mode (center-channelmode)
Refers to the A/v receiver and A/V preamplifier center channel work settings.

Home speakers (center-channelspeaker)
A home theater system mounted to the top of the video monitor, or following a speaker. Is used for replay center channel sent to human dialogue, information, and other actions on the same screen some tones.

Consumer Electronics Show (CES)
Means the annual lunar new year in the United States Las Vegas international consumer electronics show.

Channel balance (channelbalance)
Refers to the audio system or individual audio equipment in the left and right channels of a relative level or volume. Also used to indicate Dolby encoded signals left and right signals the relative difference. In order to get the best Dolby decoder effects, some of the A/v receiver and A/V preamplifier can also be adjusted on channel balance.

Channel separation (channelseparation)
Lines are used to measure a channel like other channel isolation between the scale degree. In home theater systems, when channel isolation is not enough, one channel of audio will "string into" another channel. Typical example is the Dolby Surround, front main channel of "conspiracy to" surround. -Channel isolation, sound and image positioning will be more accurate.

Thoracic tone (chesty)
Refers to the speaker of a sound dyeing, like singer for pleural too large to reproducing the sound culvert. Due in 125 ~ 250Hz section of low-frequency response has raised.

Color (chrominance or chroma)
Means the color part of a video signal. Chrominance signal contains color and tonal information, but not the brightness information.

Putt mock (chufing)
Means inverted phase-speakers in a high level of replay bass by the putt mock. Because at this point, there is a wide range of air in the speaker Office through the hole.

Class a amplifier (class-A)
Also called A class. For an amplifier. This transistor or tube amplifiers will be on the entire audio signal amplification.

CPI zoom (class-B)
>Also known as a B class. For an amplifier. At this point the way transistor or tube amplifiers will be amplified audio signal is half, while the other one transistor or tube amplifiers are amplified signal negative half.

A CPI zoom (classAB)
Also known as AB class amplifier. Amplifier in a working state. At this point the amplifier output stage in output power to low level then press r to enlarge and power output for high level is converted to the CPI.

"Zoom (classD)
Also known as D-class amplifier or digital amplifier. -Use high frequency switching power supply circuits for amplification of the audio signal. High efficiency, small size advantages. Many power up to 1000 watt digital amplifier, the class size is just like a box of VHS tapes. This type of amplifier does not like as wide-band amplifier, but in active subwoofer, there are a lot of applications.

Limiting (clipping)
When asked the amplifier output exceeded its allowable output power, output audio waveform in top and bottom became flat. Just like the peak to the squared. Limiting introduces significant distortion. Let the people in the music of peak time to hear GA GA cheep cheep.

Closed (close-in)
Not enough of a sound is not muted, and the lack of air and details. Multiple result in more frequently than when the attenuation 10kHz.

CLVLD laserdiscs (CLVlaserdisc)
Defined as the constant linear velocity recorded LD laser discs. Depending on the laser picker in the read position on the disc, the disc speed LD will change. When the laser pickup in disc outside along when read, LD DVD speed is rather slow on; when the picker to read along the inner diameter of the disc, the speed will be faster. Because, from laser picker, the linear velocity of the unchanged. Also known as "extended play" DVD, because the single-sided disc can store one hour of video programs.

Coaxial cable (coaxialCable)
Refers to an internal conductor are isolated layer of wovenwith around a cable.

Coaxial digital output (coaxialdigitaloutput)
Means the CD player, DVD player and other digital audio sources installed on the device used to output digital audio RCA socket. You can use coaxial digital signal cable to connect with other audio equipment.

Coaxial pronunciation unit (coaxialdriver)
Means a pronunciation unit (usually a treble unit) installed in a different pronunciation unit (usually a baritone unit) internal type speakers.

Coded orthogonal frequency division multiplexing (COFDM)
Originally codedorthogonalfrequencydivisionmultiplex, a channel coding and modulation methods. In Europe, mainly used for DTV digital television and DAB digital audio broadcasting. For every part of the adjacent signal isolation from each other as possible, and as many as in may 1536 discrete frequency transmission, thus reducing transmission errors and multipath interference such as passing wave.

Coherent (coherence)
The music can have an overall feeling rather than by the many individual parts of the composition of the kind of feeling.

Acoustic colouring (coloration)
Refers to the audio system, an audio equipment arising out of the sound changes. Dyeing of speakers in the audio cannot be accurately to evolve and to the speaker of the acoustic signal. For example, audio speaker can be dyed to evolve too much bass and treble are lacking.

Comb filter (combfiltering)
Refers to the frequency response of a series of deep valleys and peaks. Typically, when the direct sound and the listening room speakers on either side of the side wall of the reflection and slightly some latency reflections-together, we will produce this kind of comb filter.

Common mode curbed (common-moderejection)
When the balance is applied to the differential amplifier, then only the phase difference between balanced signal to zoom in. No two phase common noise (common mode noise) are differential amplifiers are curbed.