Wednesday, December 15, 2010

The equalizer in the role of car audio

1. audio system using graphic equalizer purpose already has a host-amplifier-speakers these basic sound system, in order to make the system of quality improvement and adjustment of more detailed, more complete the music, the sound system to join the equalizer. Audio system using graphic equalizer (Graphic Equalizer) to some of the audio band promotion or decay, its intent is to fix the car space acoustic characteristics and sound amplitude-frequency characteristic of defects, or concerning the voice processing, can be rendered on the car sound field positioning and after about to make adjustments to suit your personal tastes and enhanced presence. Frequency balance (Frequency-response equalization, also known as balanced Equalization or adjustment balanced Corrective equalization) circuit, it is in audio system, in order to get a flat frequency response of total and calibration for some signal or adjust the transmission frequency characteristics of a network circuit, it can take on various frequencies differently, resulting in flat overall frequency response. If the jianwu DPX-8020MD internal itself with 11 graphic equalizer circuit, is a typical example, a host of internal amplification circuit, it has different frequency Equalizer circuit. 2. audio system to do not use Equalizer graphic equalizer was very popular, becoming the sound combination of parts, but a few years ago has disappeared, almost deserted. There are many reasons, first of all, the majority of commercial graphic equalizer, the poor quality produce discernible at the additional distortion and noise, and reduced the overall sound quality. Secondly if used incorrectly, often makes heavy bursts into balance, causing heavy bursts into excessive and muddy low frequency, if lacking and dark, high-frequency of excessive and harsh. HiFi sound quality for the pursuit of lovers, is intolerable, now with sound knowledge of popularity, the sound quality is a very good identification capabilities, graphic equalizer has gradually been car audio enthusiasts to Hi-Fi stage. Due to the graphic equalizer in appearance to a beautiful feeling that is young people like pursuit of the objectives, stressing the screen pretty most choose a graphic equalizer. Now 2DIN host generally with a graphic equalizer. However, for Hi-Fi enthusiasts recommend not using this host, because this host internally sources do modification, therefore, not the pursuit of quality of listening, as a general appreciation. 3. how to use the equalizer for sound effect compensation in recent years many brand car audio hosts such as SONY, KENWOOD, VDOdayton, in order to obtain a sense of comfortable listening, sets some can produce the special effects of frequency compensation processing multiple EQ, preset tuning mode, build the appropriate to play different music sound effects, provide perfect sound environment, timely non-professionals and also does not make the sound field adjustment disorder, just press the preset keys can better achieve preset effects as ROCK (rock music), VOCAL (vocal), CLUB (Club), NEW AGE (fashionable), POP (pop music), JAZZ (Jazz), CLASSIC (classical music), etc. On sound source frequency compensation principle is not able to influence its melody playing of loudness, even if the volume is large, it does not make people feel uncomfortable. According to personal preference to combine the best of the entry into force of the environment. 4. frequency compensation will result in consequences of abuse in the frequency response of a band a peak and Valley, especially in 3 ~ 5kHz and 200 ~ 300Hz, will lead to significant changes of sound quality. In the frequency response curve low band and spikes-low band makes the timbre cloudy or even specific frequency of "OM" sound, high-frequency band will have a Summit "metal sound", the peak appears in the high frequency band will have their own "sound". Low frequency effects on the sound intensity, excessive make sound becomes cloudy, serious problems of "when". 200 ~ 500Hz-low band decided to voice, too much sound become blurred, sharpness decreases, the intensity of the sound lack of decline and out thin, hard, narrow timbre. 1 ~ 3kHz luminance and high band on, clarity and Telepresence has an important role, this band would sound too hard, more than + 5 ~ 10dB appear metal Sonic, the decline will make sense out of bright timbre serious declines sound dull hair. 5kHz above band is a reflection of sound characteristics, such as high-frequency 6 ~ 7kHz adjust excessive sound becomes shrill, language pronunciation of teeth and serious declines noticeably darker timbre. Equalizer can compensate for the frequency response, allowing a frequency increase or decrease, but if used improperly, can cause sound quality deterioration, such as opacity-500Hz following excessive frequency lifting; bore, off-frequency attenuation 2000Hz above is too large, or promote the following frequency 2000Hz excessive; Burr-5000Hz excessive frequency increase above; thin-500Hz following excessive frequency attenuation; lack of telepresence-1000 ~ 4000Hz frequency attenuation is too much; dry, hard-1000 ~ 3500Hz band promotion. 5. frequency Equalizer types as properties are divided into: analogue/digital press usage fall into: external Equalizer as 1, jianwu KGC-9044, 1DIN size 11-band graphic equalizer with 3 color spectrum analyzer. 2, jianwu KGC-6024A 9-band graphic/2-band parametric equalizer. 3, KICKER KQ5 5-band equalizer, 4, KICKER KQ30 30-band equalizer, the equalizer General used for competitions. Host with Equalizer as 1, jianwu DPX-6020 digital signal processor appended equalizer and Spectrum Analyzer, 11 types of preset sound field control (SFC), digital frequency and digital time adjustment. 2. Sony MDX-M690 seven built-in equalizer, sound spectrum analysis shows. Power amplifier with Equalizer as SONY XM-405EQX power amplifier itself with the fifth paragraph of the picture shows the equalizer. Using the equalizer is to have a certain procedure in useDuring the trial and experience, I believe you would be after use without it, it will bring you new sensations.

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