Trying to learn DSP crossover when you have only GEQ. Waveguide plus midwoofer crossed at ~2kHz:
Example hardware:
it has autotune build in but I think it will not work.
- how to calculate a god HF lift?
- use nearfield plus lets say 1 meter measurements?
- no autotune in eg REW? all manually by trial and error?
- what about step response and tweeter delay?
- better use low order and match acoustic slopes?
- Bessel, Butter, Linkwitz slopes for crossover 6-48dB
Example hardware:
it has autotune build in but I think it will not work.
What are you trying ? Is it crossover filtering or speaker/room compensation ?
Your picture shows Parametric EQ. I assume GEQ is graphic EQ, where only the gain is adjustable with fixed Q-factor and frequencies, often spaced sub-multiples of an octave apart. For a GEQ to be successful, the number of bands needs to be high, for example the common one-third octave GEQ is 31 or 32 bands across.
Your picture shows Parametric EQ. I assume GEQ is graphic EQ, where only the gain is adjustable with fixed Q-factor and frequencies, often spaced sub-multiples of an octave apart. For a GEQ to be successful, the number of bands needs to be high, for example the common one-third octave GEQ is 31 or 32 bands across.
You can switch between GEQ/PEQ. GEQ allow change the Q. I've played yesterday combining nearfiled measurements, more to come. I'm asking which soft do you use for quick calculations: REW, Vituix etc. or fully manual by trial and error.
I think most software (like REW) can output a list of PEQ (generic) that you need to dial into your processor. However, PEQ is mostly used for speaker tuning. For crossover, the regular HP / LP / BP / AP filters are used.
With GEQ, again the frequency bands are fixed, so what's the point ?
With GEQ, again the frequency bands are fixed, so what's the point ?
Point is about methodology/software used to get result fast and efficient, example:
https://www.diyaudio.com/community/...y-to-start-when-using-dsp.383188/post-6945964
(with GEQ I can define freq/q/gain, with PEQ I can't in that soft from 1 post)
https://www.diyaudio.com/community/...y-to-start-when-using-dsp.383188/post-6945964
(with GEQ I can define freq/q/gain, with PEQ I can't in that soft from 1 post)
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Well, that is in direct conflict with conventional wisdom.
https://audiouniversityonline.com/parametric-eq-vs-graphic-eq/
Fortunately, it is also the source of the confusion. If you're planning on using software, you'd have to call it parametric (PEQ). Both VCAD and REW have them.
REW EQ output:
I don't have HS - high shelf. How to use PEQ instead?
Filter 1: ON PK Fc 1147 Hz Gain 1.10 dB Q 1.000
Filter 2: ON PK Fc 2140 Hz Gain -7.60 dB Q 1.446
Filter 3: ON PK Fc 6725 Hz Gain -1.60 dB Q 1.000
Filter 4: ON HS Fc 9928 Hz Gain 5.10 dB
Filter 5: ON PK Fc 17202 Hz Gain -2.40 dB Q 1.573
I don't have HS - high shelf. How to use PEQ instead?
Fc = 16000 Hz
Gain = 5.1 dB
Q = 0.6 (or maybe slightly lower to reduce error around 20kHz)
Use REW to adjust to your taste:
Gain = 5.1 dB
Q = 0.6 (or maybe slightly lower to reduce error around 20kHz)
Use REW to adjust to your taste: