single-ended amplifier
HDCD
amplifier
amplifier with a radio function.
Dolby Digital (Dolby Digital)
the antithesis of music naturally neutral, that is the sound itself is not infected with the program's features, such as speech in front of a jar to get the kind of sound that is typical coloration. Coloration indicates the playback signal in a more (or reduce) some of the ingredients, this is clearly a distortion.
new equipment prior to use of power warm-up process, so that the sound equipment into a stable state.
refers to the audio technology, especially those who prefer.
dual amplifier crossover (Biamping)
after class
B
positive feedback
sensitivity
Home Cinema system a high performance combination of audio-visual equipment, which is used to create a home theater to watch the show similar to the kind of sound and picture experience. Although most of the video equipment, especially the TV picture quality is not entirely satisfactory, but the investment after a certain amount of money, but can be obtained even in the audio sound as good.
ADD
DAB (Digital Audio Broadcasting)
FLAC is the Free Lossless Audio Codec is the abbreviation, the Chinese can be interpreted as lossless audio compression. FLAC is a well-known free audio compression, which is characterized by lossless compression. Unlike other lossy compression such as MP3 and AAC, it will not destroy any of the original audio information, so you can restore the music CD sound quality. Now it has been a lot of audio software and hardware product support. FLAC is free and supports most operating systems including Windows, Unix-based systems developed kernel (Linux, * BSD, Solaris, OSX, IRIX), BeOS, OS / 2, Amiga. And FLAC provides the tools autotools, MSVC, Watcom C, ProjectBuilder on the build system.
refers to the CD, recording, editing, and mastering all the way with a digital processing.
Digital Output (Digital Output)
see
output of the device can not reproduce the input, resulting in a waveform distortion or signal components of the increase or decrease.
CD standard sampling frequency is several times the standard sampling frequency of 44.1kHz, which aims to facilitate the D / A converter after the digital noise filter to improve the high frequency phase distortion CD player. The early CD player with 2 octave or 4 octave sampling, recent machine has reached eight times or more.
see
bass
MP3 support nowadays the most common format is MP3 and WMA. Since MP3 is a lossy compression, so the emphasis on the sampling rate is generally 44.1KHZ. In addition, bit rate, the flow of data, typically 8 --- 320KBPS. In the MP3 encoding, but also to see if it supports variable bit rate (VBR, which some high-quality high bit rate, low-quality part of the low-bit rate), now the majority of MP3 players are supported, so you can reduce the valid file size. WMA is Microsoft pushing an audio format that is relatively smaller than MP3.
U.S. Lucasfilm company to develop a standard surround sound, Dolby Pro Logic surround system it has been improved, so that surround sound can be further enhanced. THX standard for playback devices such as audio and video sources, amplifiers, speakers and even connecting wire has a relatively strict and specific requirements to achieve this standard and certification of products by Lucas, was awarded the THX logo.
the strongest part of the signal and the weakest level difference between the parts. Of equipment, the dynamic range that the signal strength of this equipment on the balance capacity.
frequency (Frequency)
not a noise reduction system, but a record of high-frequency distortion to improve tape technology, often called
the CD a Philips digital signal into an analog music signal technology.
separation channel digital surround sound home theater system (Discrete-channel home cinema digital sound system), it also uses an independent 5.1-channel, the effect is achieved even better than the Dolby Digital surround sound system, is a strong Dolby Digital Surround competitors.
Because the amplifier is not ideal, the output signal in addition to the input components include enlarged, but also added a number of the original signal 2 times, 3 times, 4 times ... ... or more times the frequency components (harmonics), resulting output waveform shape. This is called due to harmonic distortion caused by harmonic distortion.
DCC (Digital Compact Cassette)
promising
integrated amplifier
refers to the signal cable or speaker wire, usually the amount of pure copper wire that leads to good or bad, as it indicates that the 6N copper wire has reached 99.99997%. Good performance speaker cable and more composed by the multi-core line, it also bore a single or a few thick copper wire. In the more directional speaker line marked with arrows indicating the wiring from the amplifier to the speaker's direction,
burberry outlet vacaville 突然想起的歌, some signal lines are marked with an arrow to indicate from the source to the amplifier wiring direction.
refers to high voltage electric power generated to drive the diaphragm to sound thin and light that class speakers.
burn
also known as AB class A and B circles in between push-pull amplification of each B class B amplifier amplification of an effective solution to the problem of crossover distortion, high efficiency amplifier off than the CPI, was given a very wide range of applications.
Home Theater (Home Theater System)
receiver
dB (decibels)
the unit of frequency, 1 Hz signal that changes periodically once per second.
transient response
DVD-R
3. in some ways as a wave filter to refer to the vibration.
SRS
Dolby Digital amplifier
electrostatic loudspeaker (Electrostatic Speaker)
enthusiasts (Audiophile)
amplifier output stage composed of a zoom component (or components but only in parallel into a group) complete the two and a half weeks of positive and negative signal amplification. Single-ended amplifier working status of the machine can only take the CPI.
a unique B amplifier distortion. This distortion is due to the signal generated by the mechanism of positive and negative half-cycle by two different devices to amplify the positive and negative sides of the waveform is not smooth convergence.
transmit music signal is high, the bass part of a wiring. Bi-wiring required with two pairs of terminals specially designed speakers.
Sony developed mini recordable music CD, looks like a computer with a 3.5 inch floppy disk,
polo ralph lauren shirts for women 等你瘦到95斤我就娶你！, but the optical signal pickup system, similar to the CD. MD using efficient compression technology to achieve the same recording time and CD sound quality is close to the CD.
Sony has introduced a recordable 74 minutes, similar to the shape of a computer floppy disk, and the size of 64mm magnetic optical drive, MD-type magnetic disc is pre-recorded and recordable-type categories.
more audio system refers to the signal source, such as the LP microgroove LP player or CD player, sometimes referred to as a tuner (radio head) to handle the signal from the wireless receiver to the first level.
decibels (dB)
Definition Audio
THX
refers to on / off pulse signal conversion to analog voice signal digital-analog (D / A) converter. Have been equipped with a CD player in the DAC, but the exterior of the DAC allows the CD player or other digital audio player to upgrade.
Dolby B, C, S
digital audio products (such as CD, DVD) digital audio signal will be converted to analog audio devices. D / A converter can be made independent of the machine to use with the CD turntable, now often referred to as decoder.
bit (bit)
means can be composed of audio signal frequency components (bass, midrange and treble) in the enlarged group while before they were added to the respective active speaker system to an electronic network. While the active crossover networks are mostly built in subwoofer and the like among the speakers, bass speakers for the promotion,
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waves in a cycle trip. Wavelength is numerically equal to the speed of sound (344 m / s) divided by frequency.
DTS
preamplifier and power amplifier collectively.
of the amplifier, the rated continuous output power generally refers to the RMS (RMS) power; the speaker, the speaker refers to the rated power known to withstand long-term value of this power without damage, this does not mean necessarily need such a high-power amplifier only push action, mainly by the difficulty of the speaker driver features to determine the sensitivity and impedance. Does not mean that speakers can not be greater than the rated output power with a power amplifier. The same as driving a car, driving 300 kilometers per hour sports car accident occurs does not mean you can not open so fast. Similarly, as long as the volume increase is not blind, as can high-power amplifier with low power speakers.
level
Divx
THX 5.1
Front (Front End)
also known as signal to noise ratio, the useful signal and noise components of the strength of contrast, the number is often expressed in decibels. The higher signal to noise ratio of equipment that it produces less noise.
DVD
an equipment's output impedance and load impedance connected between a relationship should be satisfied, so connected to the load after the equipment itself, working conditions have a significant impact. Interconnects for electronic devices, such as signal source amplifier, the front even after the class, as long as the input impedance of greater than after a previous level 5-10 times higher than the output impedance, impedance matching can be considered good; for the amplifier Connect speaker, tube machine should be used with a nominal output impedance is equal or close to the speakers, while the transistor amplifier does not have this restriction, you can take any impedance of the speaker.
for a dedicated computer can erase rewritable DVD discs, the required storage capacity of 2.6GB (single layer) and 5.2GB (double).
Technically, Blu-ray burner system can be compatible with all CD-ROM products had emerged. The huge capacity of Blu-ray products high-definition movies,
louis vuitton belts, games and large-capacity data storage brings the possibility and convenience. Will greatly promote the development of high-definition entertainment. Currently, Blu-ray technology has been the world's more than 170 big game companies, movie studios, consumer electronics and home computer manufacturer's support. Eight major film companies in the seven: Disney, Fox, Paramount, Warner, Sony, MGM, Lions Gate's support.
(Dolby Pro-Logic)
also known as Class B, the positive and negative sinusoidal signal by two and a half weeks of push-pull output stage of the two . B amplifier has the advantage of high efficiency, the disadvantage will produce crossover distortion.
bit stream
conductors in electronic devices or easy transmission of electromagnetic waves outside the coverage of the material, to prevent external electromagnetic noise on the useful signal interference technology.
signal to noise ratio (S / N)
distortion (Distortion)
damping
developed by the Philips family with a digital cassette tape recorder, CD player with quality sound is close, but not convenient to use. As with Sony's MD failed to compete with each other, the market has gradually disappeared.
also known as AC-3, Dolby Laboratories released a new generation of home theater surround sound system. The digital audio includes left front, center, right front, left surround, right surround 5-channel signal, they are independent of the full-band signal. There are also effects all the way to a separate subwoofer channel, commonly known as 0.1 channel. All of these channels together is called 5.1.
data compression (Data Reduction)
CD turntable
fibrillation (Fluffer)
dipole-type speakers (Dipolar Loudspeaker)
most single frequency components of a signal, because this signal is a mathematical sine wave curve is named. Any complex signal - such as music signals, can be seen as composed of many different frequencies, sizes of composite sine wave.
Bandwidth (Bandwidth)
amplifier tube amplifier in the conductive mode, there is the CPI (A class), B (B class) and Class A and B (AB type) of the points.
So far, Blu-ray is the most advanced high-capacity optical disc format, BD tremendous progress in laser technology, allowing you to store 25GB on a single disc on the document file. This is an existing (single disc) DVDs five times. Speed, the Blu-ray to allow 1 to 2 times or 4.5 ~ 9MB per second record speed.
binary digital signal composed of the smallest unit, it is always to take one of two states 0 or 1.
a U.S. company with two SRS surround sound effect speaker system.
respectively, with two sets of speaker wire
DDD
adaptive transform acoustic coding means. A kind of by the Japanese launch of Sony's MD in its magnetic disc recorder used in low bit rate data compression coding technology.
in Dolby surround sound adds a front center channel, in order to lock the film's dialogue to the screen.
amplifier output stage has two The load is concerned, seems to be an Although the CPI can be used to push-pull amplifier amplification, but more common is to use push-pull class AB amplification constitute or B amplifiers.
pressure
A
rated power
the amplifier, the sensitivity usually refers to the rated output power or voltage at the input of the signal voltage plus size, also known as the input sensitivity; the speaker, the sensitivity is applied to the speaker 1W of input power, In front of one meter distant speaker can produce many decibels of sound pressure.
MD machine (Minidisc)
referred to as the amplifier for signal power to drive the speakers to enhance sound of an electronic device. Without source selection, volume control and other ancillary functions called after the power amplifier stage.
independent mono power amplifier (monobloc)
also known as Class A, of the entire cycle of the signal (sine wave plus or minus two and a half weeks), any power amplifier output current cut-off devices will not appear (to stop the output) of a class of amplifier. A amplifier will generate heat, the efficiency is very low, but there is no inherent advantage of crossover distortion. A single-ended amplifiers are ways of working, push-pull amplifier can be A,
discount watches, B or B can also be a class.
connecting cable (Cables)
Digital Audio Tape abbreviation. Refers mainly used for professional recording of a digital recording device, using the same recorder (VCR) is similar to the rotating head.
with bipolar speakers on the same structure, but the forward and reverse feed the signal to the speakers, so the sound radiation pattern was inverted More as surround speakers. THX recommends that selection of dipole type surround speakers.
divider
pre-
refers to a frequency range for the audio recording to say, bandwidth means the sound system or recording device can accommodate the bands or solo performers singing a frequency response range; and the family, said to sound reproducing apparatus, bandwidth refers to playback system can
DVD-ROM
High Definition Compact Disc (High Definition CD) acronym - a coding system to improve CD sound quality, compatible with traditional CD, but need a CD player with HDCD decoding on playback or external to a HDCD decoder improved results.
DVD-Audio
Blu-ray discs have a strong level exception, which is important to protect the disc recording layer. Philips Blu-ray discs using advanced vacuum technology linked to form a uniform thickness of 100μm (1μm = 1/1000mm) layer of security. Philips Blu-ray Disc can withstand frequent use, fingerprints, scratches and dirt, in order to ensure the quality of Blu-ray products store data security.
speakers each speaker unit consists of only a single amplifier channel to drive a connection. One pair of two-way speaker of the need to use two stereo amplifier and two pairs of speaker wire. See
refers to as a home entertainment video disc. DVD disc DVD player required to play. Audio and video will be equipped with appropriate hardware or big screen TV's with DVD-ROM with desktop computer monitors.
refers to the digital audio broadcasting. Whether FM (FM) or amplitude modulation (AM) radio, are all digital stereo, the BBC is in some pilot areas in China in recent years, also in Guangdong, Beijing and other places began to pilot. DAB required a special receiver (radio) to listen to.
active crossover network (Active Crossover)
Hz (Herz)
DAC (digital to analog converter, also known as decoder)
U.S. company has developed a series of tape Dolby noise reduction system to reduce tape recordings produced B-type noise reduction system noise 10dB, C-type increased to 20dB, S-type is up to 24dB.
Audio is a professional term, human beings can hear the audio for all voice calls, which may include noise. Sound is recorded later, whether it is voice, singing, musical instruments are available through digital music software processing, or making it into a CD, this time all the sound has not changed, because the CD was originally a type of audio files. The audio is stored in the computer's voice. If you have a computer coupled with the corresponding audio card - the card is what we often say, we can put all the recorded sound, the sound of the acoustic properties such as the sound level so you can use a computer hard drive files stored down. In turn, we can also store audio files down with a certain audio program playback, restore previously recorded sound.
DVD audio disc, the current 1.0 version to 24bit/192kHz as the standard. Yet while some by DVD-Video (DVD-Video) make music DVD discs, but not the same thing with the DVD-Audio.
Pro Logic surround sound amplifier
also known as AC-3 amplifier, one with Dolby Digital decoding AV receiver.
electronic systems for voltage, current, power, strength and other physical quantities known. Level is generally measured in decibels (dB) for the unit said. That is fixed in advance to take a number of voltage or current reference value (0dB), used to be that the quantity and reference value of the logarithmic ratio, multiplied by 20 decibels as the level (power level value to switch to 10) .
means the CD-ROM is similar, but better than the CD-ROM CD-ROM, designed for computer use, DVD-ROM can have different storage capacity of 4.7GB single-sided single-layer and double double surface of the 17GB.
Class B
physical strength of that voice.
lead to reduced magnification feedback. While the magnification of negative feedback losses, but can effectively broaden the frequency response, reduced distortion, wide range of applications.
ogg format is completely open source, free, and mp3 comparable to the new format. Similar to MP3, OGGVorbis is the lossy compression of audio encoding, but by using more advanced acoustic model to reduce losses, so the same bit-rate sound quality than MP3 encoded OGGVorbis better,
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Dolby Pro Logic
feedback to increase magnification. The role of positive feedback and negative feedback is just the opposite, so caution should be used.
the preamplifier and power amplifier in two parts in a single chassis amplifier.
ATRAC
Distortion
by the U.S. Circuit City has introduced a rental DVD's special way, one-time payment, you can watch 48 hours straight and can not return, but then see an additional charge.
impedance matching
AC, refers to the direction of the current cyclical changes in the market for electricity supply, the Anglo-American multi-60Hz, 50Hz is used in China.
oversampling
shorter wavelength laser, can be recorded in the unit area or read more information. Therefore, the Blu-ray discs greatly improved storage capacity for optical storage products, Blu-ray provides a leap-forward development opportunities.
pre-amplification and pre-amplifier control section, used to enhance the signal voltage amplitude, providing the input signal selection, pitch adjustment and volume control. Preamplifier, also known as the former level.
2. refers to the stored audio content files.
AV amplifier
also known as feedback,
jordan shoe, a way to part or all of the output signal back to the input of the amplifier circuit to change the magnification of the technology.
refers to the CD, press the analog recording, by way of editing and digital mastering.
SPL
the CD drive of the mechanical transmission part independent of the machine.
refers to the sound unit that point to the front and rear speakers and with the kind of speaker with the signal feed device. As the push for the same signal phase, so the sound signal does not have anti-phase offset, there will be no lateral acoustic radiation attenuation dramatically. Bipolar speakers typically need to put more distance away from the front wall, to the point after to let the sound waves can have a proper reflection.
refers to the DAC can be attached to the outside storage or processing of the digital signal output, can also be the optical signal output (optical) output.
Frequency response
Dynamic Range
feedback
refers to unwanted signals or by the equipment added to the signal generated by those changes.
bipolar speaker (Bipolar Loudspeaker)
DVD-RAM
PA
system based on Dolby Digital THX.
referred to as frequency response, measured an equipment for high, medium and low frequency signals to reproduce even the ability. Frequency response of the equipment requirements in two ways, one range as wide as possible, that is able to replay the lower frequency limit as low as possible, the ceiling as high as possible; the second is the frequency response of each point within the flat as much as possible, to avoid excessive fluctuations.
harmonic distortion
tube amplifier in another way.
expressed in decibels sound pressure.
load impedance and amplifier output impedance ratio. Use negative feedback transistor amplifier output impedance is very low, only a few tenths of ohms or even less, so damping up to tens to hundreds.
DVD-RW
DVD, a member of the family, that can be write once, read data DVD, DVD-R can be a single layer (3.95GB), can also be a double layer (7.9GB).
specifically designed for home theater use the amplifier, which usually have four or more number of channels and the surround sound decoding.
D / A converter
Peak Music Power Output (PMPO)
equipment music burst on the ability to follow. Good transient response equipment should be to immediately signal a response signal a stop to a halt, not dragging its feet.
a way to channel coding to the rear effects channel stereo sound. Playback will need a surround sound decoder from the coded sound signal separated.
negative feedback
preamplifier
refers to the music store trying to reduce the amount of data required a technology. Sony in its MD magneto-optical recorder that uses ATRAC compression technology, and Philips of the Netherlands in its development of the DCC digital cassette tape used in a similar PASC (precision adaptive subband coding) technology . The two methods are the use of the data compression system to try to get rid of the human ear can not hear those data.
DAT (digital audio tape)
with Dolby Pro Logic decoding AV receiver.
MD
level and sound pressure level of the unit.
refers to the audio tape or CD because there are rapid changes in speed have ups and downs of leaving the pitch phenomenon, caused more by not working.
bi-wiring (Biwiring)
shield
tube amp
high frequency sounds are usually referred to as treble, bass will be called the low frequency, audible sound frequency range between 16Hz to 20kHz.
push-pull zoom
by the Sony Corporation of Japan and Philips of the Netherlands and the United States jointly launch a HP storage capacity of 3GB erasable and rewritable DVD discs, and DVD-RAM is similar. Are still in the development of capacity of 12GB, which can input five hours of television programs DVD-RW.
means completely independent mono power amplifier, thus, starting a two-channel stereo system, two sets of the separate power amplifier. The advantage is that no cross-linking between channels like interference.
Dolby Surround (Dolby Surround)
crossover distortion
sine wave
AC (Alternating Current)
Dolby HX Pro
music signal can reach the peak transient voltage to calculate the output power, its commercial significance than practical effect. PMPO power can be compared internationally recognized RMS rated output power (RMS) 3 to 4 times higher, such as the early hand-held tape recorders RMS power per channel is only 4,5 watts, but the use of PMPO to mark, what can increase the value large to 20W or so.
wavelength
speaker device within a circuit to the input music signal is separated into treble, alto, bass and other different parts, and then were sent to the corresponding high, medium and woofer in the replay.
changes in sound pressure measurement unit, when there 1dB of change, will be able to listen to them the difference, and the increase in a +10 dB, the loudness will be doubled.
1.Audio, refers to the human voice.
class
bride dresses Audio reading
Linear Mode
