![]() ![]() This can be the case with narrow-band resonance problems of loudspeakers or vibrating door panels. may be necessary if one single EQ band is not sufficient to eliminate a peak in the frequency response. On the other hand, it is completely uncritical to choose the same center frequency for more than one filter if a certain frequency range needs to be lowered. Such settings almost automatically lead to digital clipping, which can destroy your speakers in seconds! The example shows what happens when four bands with the same center frequency are adjusted for maximum boost. Important: Avoid having identical center frequencies for several bands if you like to boost a specific frequency range. In contrast to the “Fine EQ”, there is no limit to the center frequency as long as you enter values between 10 Hz and 24,000 Hz for devices with 48 kHz sampling rate (or 10 Hz to 48,000 Hz for devices with 96 kHz sampling rate / 10 Hz to 96,000) Hz for devices with 192 kHz sampling rate). It is even possible to enter the frequency directly - just click on the numbers and type in the desired value. "Parametric EQ" allows you to change the center frequency in extremely fine 1 Hz steps - this is done using the up / down arrow keys on your keyboard. As soon as you do this, the frequency is displayed in blue numbers instead of white underneath the respective slider. ![]() Each EQ band can be switched to this function individually. The “Parametric EQ” function is similar to the “Fine EQ function”, but allows even more extensive setting options. The effect is shown in the graphic below. The Q factor can be varied from 0.5 to 15 in 0.1 steps. A small Q factor results in an effect on a wide frequency range, while a high Q factor allows to eliminate narrow-band flaws in the frequency response. The “Q” control affects the bandwidth of a boost or cut. It is therefore not possible to adjust two EQ bands to the same center frequency. The adjacent “1.25 kHz” band can be lowered down to 1,175 Hz. The center frequency of the 1 kHz band can be raised up to 1,150 Hz. This means that it is not possible to overlap two adjacent EQ bands. The center frequency can now be increased by a maximum of 1/12 octave or lowered by a maximum of 1/6 octave in 1/24 octave steps. To do this, click with your PC mouse on the desired EQ band, which is then highlighted in grey. The “Fine EQ” function allows you to change the center frequency and the Q factor in small steps. Although the equalizer already comes with a very practical resolution in 1/3-octave steps, a “fine adjustment” for each band can be selected if a higher resolution is required. ![]()
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