What does 12dB octave mean?

The smallest amount of electronic components that makes a low or high pass filter creates a slope of 6 dB per octave. That’s called a “one-pole” or “first order” filter. IF you double the components, you create a 12 dB per octave low or high cut filter and that is called “two pole” or “second order”, and so on.

What is 24dB octave?

4th order = 24dB/octave. low pass filter = lets low frequency through unaltered. corner frequency = the hinge for the filter, often the -3dB point (i.e. the frequency at which the response is down 3dB) to put even more simply, if the speakers go down to 45Hz then you have set the crossover on your sub to about 45Hz.

What is the difference between 12dB and 24dB filter?

In a low-pass filter the 24db filter has a steeper slope so it eliminates more of the higher frequencies completely. The 12db slope on a low-pass filter limits higher-end frequencies but lets more of them through than the 24db filter. This is really obvious if you play something with a lot of harmonics.

What is decibel slope?

In audio filters, slope refers to how quickly frequencies are attenuated by the filter once the cutoff frequency is passed. Slope is given as a dB/octave figure. A second order, or two pole filter will have a slope of 12 dB/octave, and so on (slope increases by 6 dB/octave per order or pole).

How many Hz is an octave?

440 hertz
Octave, in music, an interval whose higher note has a sound-wave frequency of vibration twice that of its lower note. Thus the international standard pitch A above middle C vibrates at 440 hertz (cycles per second); the octave above this A vibrates at 880 hertz, while the octave below it vibrates at 220 hertz.

How many decibels is an octave?

A unit, equivalent to ten decibels, used in the comparison of two levels of power in an electrical communication circuit. An octave in the musical sense is an interval embracing eight notes of the diatonic scale.

What should my high-pass filter be set to?

Recommended Starting Points:

• Front Tweeters – High-Pass Filter = 5,000 Hz (12 db or 24 db Slope)
• Front Midrange – Band-Pass Filter = 80 Hz HPF & 5,000 Hz LPF (12 db or 24 db Slope)
• Rear Speakers (Passive) – High-Pass Filter = 80 Hz (12 db or 24 db Slope)

What should my high pass filter be set to?

What is the slope of a filter?

The slope of the filter is the rate of attenuation, i.e. 6, 12 or 24 dB per octave. Also known as “Q”, the resonance of a filter is the measure of the amount of feedback from the filter’s output to its input.

What Hz is best for bass?

Bass: 60 to 250 Hz The fundamental notes of rhythm are centered on this area. Most bass signals in modern music tracks lie around the 90-200 Hz area. The frequencies around 250 Hz can add a feeling of warmth to the bass without loss of definition. Too much boost in the bass region tends to make the music sound boomy.

What should my LPF be set at?

As a general rule, the Low-Pass Filter should be set at a value approximately equal to (or below) 70% of your main speaker’s lowest frequency response.

Who can sing 5 octaves?

Singers with a wide vocal range Other big names with a 5-octave range are Shanice, Prince and Kyo, plus jazz singer Rachelle Ferrell.