均衡器的调试（Equalizer debugging）.doc

均衡器的调试（Equalizer debugging） Debugging skills of equalizer An equalizer (EQUALSER) is an electroacoustic processing device that adjusts the frequency response and amplitude of an acoustic signal. It can change the component ratio of sound and harmonic, the frequency response characteristic curve, the frequency band width and so on. Frequency equalizer is widely used in various audio systems, such as hall, sound reproduction system, broadcast recording system and home audio system. In recording (referred to as simultaneous recording and multi track pre recording) and post processing (referred to as off the shelf recording, two degree equalization, and post production of multi track recordings), the concept of beautification plays an important role. For example: (a) for frequency defects; (b) make up the sound source sound quality defects; (c) prominent features of the instrument or change the timbre; (d) in various parts of the band loudness balance; (E) to improve the music signal fullness, brightness and clarity; (f) increase telepresence, adjustment the level of performance; (g) ease voice crosstalk attenuation, leakage frequency; (H) to remove noise and noise, improve the signal-to-noise ratio (I); modified listening environment response defects, frequency equalization of indoor - can be said that the equalizer is the most important sound and sound engineers working in tuning tools. It is also the most important tool for our voice workers to improve their voice quality. I. brief introduction to the type of equalizer No matter what kind of equalizer, its function is through the audio frequency (AUDIO FREQUENEY) filter processing, to achieve the AUDIO RESPONSE (frequency response) adjustment. This adjustment allows the loudness of certain frequencies to be greater than or smaller than that of other frequencies, so that the level of a frequency is raised or attenuated by a number of decibels, called frequency balance (EQUALSATIOM), referred to as EQ. There are two wa