Hi everyone .
where can I find material to read to understand more about equalization ?. but something that starts from scratch because
I know very little about it , I would like to put ideas in order and remove confusion .
hardware , digital , diy , proprietary .
it's easy to get confused.
Thank you
where can I find material to read to understand more about equalization ?. but something that starts from scratch because
I know very little about it , I would like to put ideas in order and remove confusion .
hardware , digital , diy , proprietary .
it's easy to get confused.
Thank you
It is. There are many reasons to equalise. Are you asking what devices and methods to use, what things to equalise or how to equalise them?
I wonder what are the equalization methods to use (graphic, parametric, etc) and the differences between them.
then also which devices to use , hardware , software , digital , analog .
then also which devices to use , hardware , software , digital , analog .
I never eq speakers, always try to design them as flat on axis as possible, and well behaved of axis too.
I eq room, because no room is perfect and each needs some attention.
Therefore i use 31 band ultracurve behringer, digital eq with memory, and its own mic and white and pink noise source. Very easy to use and profound effect on the resulting experience eqed vs no eq.
I eq room, because no room is perfect and each needs some attention.
Therefore i use 31 band ultracurve behringer, digital eq with memory, and its own mic and white and pink noise source. Very easy to use and profound effect on the resulting experience eqed vs no eq.
It's a wide subject... let's start with the different kind of eq availlable atm:
https://iconcollective.edu/types-of-eq/
It's not definitive and 'plug ins' focused but you have the most common type listed as well as their parameters.
You said you read all and it's contrary... could you be more accurate and tell what seems confusing to you?
Imo the best thing you can do to understand equalisers is to simply get one (DSPs are the best option these days) and play around with it, while measuring the results.
There is plenty to learn from online but nothing will replace the intuition that comes from hours of just experimenting.
If you get a minidsp (quite cheap) there is very comprehensive guides out there to help you understand how to use them, and if you choose to upgrade later to a more powerful unit you won't be too far out of pocket.
My 2c worth.
There is plenty to learn from online but nothing will replace the intuition that comes from hours of just experimenting.
If you get a minidsp (quite cheap) there is very comprehensive guides out there to help you understand how to use them, and if you choose to upgrade later to a more powerful unit you won't be too far out of pocket.
My 2c worth.
Depend of what you want to achieve and your system: digital offer endless possibility but if your system is analog it induce an AD/DA stage which some might not want.
Digital offer possibility analog cant too.
Digital offer possibility analog cant too.
are you talking about crossovers?.
I'm only interested in equalization for the moment.
I take the ball to give a concrete example.
is it possible to make an electronic analogue crossover to opamp and the equalization function entrusted to digital?
I'm only interested in equalization for the moment.
I take the ball to give a concrete example.
is it possible to make an electronic analogue crossover to opamp and the equalization function entrusted to digital?
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No i'm talking about eq.
Xover are a kind of eq though, but if you find it confusing then forget this for now.
Analog or digital doesn't matter. Both can achieve excellent results (as well as horrible results).
Each technology has it's pro ( positive) and cons ( negative). And it depends on what you want to achieve and your system.
From a pure point of view of flexibility/cost/quality ratio, if your playback chain is purely dgital, then digital win.
If you have analog or mixed type source then analog doesn't introduce a full digital ad/da in the signal path.
It can be troublesome for some, but if you have good converters and you need digital eq ( for many reasons) then it can be an acceptable 'evil' ( or no evil at all to me...).
Digital eq can do things that analog eq can't. But these treatment are specialized and not nescesseraly needed to achieve good results.
And to answer your last question: you want an analog xover and digital eq mixed up?
Yes, no issue if you follow simple rules. *
Could be any eq/plug in software in between your player and the dac from your computer, then dac out into analog xover. ( other example could be though about like: cd player out in spdif into a digital hardware eq then dac out of eq to analog xover,....)
* your digital gain staging must not clip or saturate, so you have to lower global level if you 'boost' signal on digital eq.
Xover are a kind of eq though, but if you find it confusing then forget this for now.
Analog or digital doesn't matter. Both can achieve excellent results (as well as horrible results).
Each technology has it's pro ( positive) and cons ( negative). And it depends on what you want to achieve and your system.
From a pure point of view of flexibility/cost/quality ratio, if your playback chain is purely dgital, then digital win.
If you have analog or mixed type source then analog doesn't introduce a full digital ad/da in the signal path.
It can be troublesome for some, but if you have good converters and you need digital eq ( for many reasons) then it can be an acceptable 'evil' ( or no evil at all to me...).
Digital eq can do things that analog eq can't. But these treatment are specialized and not nescesseraly needed to achieve good results.
And to answer your last question: you want an analog xover and digital eq mixed up?
Yes, no issue if you follow simple rules. *
Could be any eq/plug in software in between your player and the dac from your computer, then dac out into analog xover. ( other example could be though about like: cd player out in spdif into a digital hardware eq then dac out of eq to analog xover,....)
* your digital gain staging must not clip or saturate, so you have to lower global level if you 'boost' signal on digital eq.
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what is digital hardware eq ?
i have this .
http://www.qlshifi.com/en/wzcapi/qa660.htm
I intend to change the DAC and get a more serious one.
i have this .
http://www.qlshifi.com/en/wzcapi/qa660.htm
I intend to change the DAC and get a more serious one.
This:
https://www.behringer.com/product.html;jsessionid=3AF06EAEE8F0E207CE652D4E4C9096BD?modelCode=P0146
Or this:
https://www.thomann.de/fr/bettermak...234biZHwPsS33kYcluMtz4_fWmrTAi7xoCc8cQAvD_BwE
Both are digital hardware eq.
https://www.behringer.com/product.html;jsessionid=3AF06EAEE8F0E207CE652D4E4C9096BD?modelCode=P0146
Or this:
https://www.thomann.de/fr/bettermak...234biZHwPsS33kYcluMtz4_fWmrTAi7xoCc8cQAvD_BwE
Both are digital hardware eq.
Edit, the second one is not... it's a digitally controled analog...
Anyway my point was it exist in a wide range of flavour regarding price...
You could use your player AES output to enter into deq2496 and from there go into a dac. As it is digital there is no loss in quality ( theoricaly).
The deq2496 could be exchanged with a computer with digital in/out soundcard and dedicated software.
Anyway my point was it exist in a wide range of flavour regarding price...
You could use your player AES output to enter into deq2496 and from there go into a dac. As it is digital there is no loss in quality ( theoricaly).
The deq2496 could be exchanged with a computer with digital in/out soundcard and dedicated software.
USB external sound card? .(actually I already have an EMU 0404 that I use for measurements combined with a microphone) .
with this the computer must be turned on with the software running on it or can it be programmed and turn off the PC later after having done all the operations and settings?
with this the computer must be turned on with the software running on it or can it be programmed and turn off the PC later after having done all the operations and settings?
Usb, external, internal soundcard doesn't matter if there is the needed digital in/out type.
eg: your player have AES out.
Then if you want to 'drive' a deq2496 you'll have to use AES cable to input into deq2496 in digital.
Deq2496 have other digital input type through Spdif 'toslink' ( optical) in/out.
If you player have it then you could use it too.
A computer used in place of deq2496 require the same: it needs the soundcard to accept the type of digital output your player use.
It will behave the same too in use: it'll treat in realtime the digital audio ( apply the eq). As such it needs to be ON. There is no such things as passive digital processors.
An hardware digital eq ( or other gear) is nothing less than a dedicated to eq ( or other means) computer ( including same thing as computer, processor, ram, soundcard) with a dedicated interface limited to what it have to do ( in other word: no big screen with choice of software, no access to operating system,etc,etc,...).
Personal computer (either pc or Apple) once they have a dedicated soundcard are kind of 'super hardware digital processors' as you can install whatever software you need for a given purpose.
And audio being not this 'heavy' in data processing you don't need a 'big' computer to run very powerful configuration ( including software player, almost all treatments you can dream of (for a stereo use at least)).
My latest audio computer is a mini size computer ( HP elitedesk g2 800 mini maxed with 32giga ram running win 11) consumming something like 100w max.
In the longterm it will replace digital players i use and'll take in charge some advanced eq technique ( room correction) and (heavy consuming) digital xover duty for 4 way loudspeakers ( so in all 8 channels of heavy treatments).
eg: your player have AES out.
Then if you want to 'drive' a deq2496 you'll have to use AES cable to input into deq2496 in digital.
Deq2496 have other digital input type through Spdif 'toslink' ( optical) in/out.
If you player have it then you could use it too.
A computer used in place of deq2496 require the same: it needs the soundcard to accept the type of digital output your player use.
It will behave the same too in use: it'll treat in realtime the digital audio ( apply the eq). As such it needs to be ON. There is no such things as passive digital processors.
An hardware digital eq ( or other gear) is nothing less than a dedicated to eq ( or other means) computer ( including same thing as computer, processor, ram, soundcard) with a dedicated interface limited to what it have to do ( in other word: no big screen with choice of software, no access to operating system,etc,etc,...).
Personal computer (either pc or Apple) once they have a dedicated soundcard are kind of 'super hardware digital processors' as you can install whatever software you need for a given purpose.
And audio being not this 'heavy' in data processing you don't need a 'big' computer to run very powerful configuration ( including software player, almost all treatments you can dream of (for a stereo use at least)).
My latest audio computer is a mini size computer ( HP elitedesk g2 800 mini maxed with 32giga ram running win 11) consumming something like 100w max.
In the longterm it will replace digital players i use and'll take in charge some advanced eq technique ( room correction) and (heavy consuming) digital xover duty for 4 way loudspeakers ( so in all 8 channels of heavy treatments).