Traditional Culture Encyclopedia - Traditional virtues - Mixing console amplifier and equalizer frequency shifter how to connect
Mixing console amplifier and equalizer frequency shifter how to connect
The role of the frequency shifter is to prevent whistling, but his use will change the sound quality, generally in the sound quality requirements are not high meeting occasions. Equalizer also has the role of suppressing whistling, the change in sound quality is small, is widely used. Please refer to the references for the specific method of using equalization to suppress whistling.
Supplementary answer:
Frequency shifter is to change the frequency to prevent positive feedback (whistling), for example, the frequency of an A tone is 440Hz, after the frequency shifter becomes 445Hz, the change of the sound can be imagined.
Equalizers are used to suppress whistling by attenuating the frequency of a fixed whistling point. Generally, 31-band equalizers (one-third octave) are used to change the sound quality, which is the most economical and commonly used method to change the sound quality, and the general stage monitors use equalizers to suppress whistling.
Feedback suppressor, he is in the wave limiting mode is the same as the equalizer, but he is dynamic, in the appearance of the whistling point frequency attenuation, and a good feedback suppressor frequency band more narrow, some can be done more than one-80th octave, theoretically, is the smallest change in the quality of the sound, but the premise of whether or not it can be accurately captured to the point of the whistling, if the capture circuit is not sufficiently accurate, then in order to achieve the suppression of whistling, it is necessary to use the circuit to capture the point of the whistling, and then to achieve the suppression of whistling. If the capture circuit is not accurate enough, then in order to achieve the role of suppressing the whistling, the whole piece of attenuation will be carried out, so that the sound quality of the change of the big, not as good as the analog graphic equalizer to suppress the whistling of the method.
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