KVR Audio

wsaidah · Post by **wsaidah** » Thu Jul 13, 2006 11:56 am

Christian, how about that pultec low boost filter that should sell some copies

martian · Post by **martian** » Thu Jul 13, 2006 12:24 pm

Christian Budde wrote: *EDIT:*
The S-Plane butterworth/chebyshev filters are already done with arbitraty order (it was too easy). However, this only works in the linear phase mode.
For the digital/analog mode I've just implemented 24dB/oct butterworth filters. Is this enough, or do you need more?

Christian

that'll do fine! i think 24db is butterworth *almost* perfect compromise for me in the low end, beyond that and the ringing on kick drums bugs me too much. but i think a chebyshev type 2 like in waves ren has the tightest phase response doesnt it? along with not so deep attenuation in the stop band?

thanks.

Christian Budde · Post by **Christian Budde** » Thu Jul 13, 2006 1:11 pm

martian wrote:
Christian Budde wrote: *EDIT:*
The S-Plane butterworth/chebyshev filters are already done with arbitraty order (it was too easy). However, this only works in the linear phase mode.
For the digital/analog mode I've just implemented 24dB/oct butterworth filters. Is this enough, or do you need more?

Christian
that'll do fine! i think 24db is butterworth *almost* perfect compromise for me in the low end, beyond that and the ringing on kick drums bugs me too much. but i think a chebyshev type 2 like in waves ren has the tightest phase response doesnt it? along with not so deep attenuation in the stop band?

Maybe I should also consider to implement a bessel filter. These have nearly linear phase in the passband. I don't know how that may effect the ringing, but it's at least nice to have.
Chebyshev type1/type2 filters will also be implemented, but I guess not until next month,

Christian

martian · Post by **martian** » Thu Jul 13, 2006 3:02 pm

more the merrier, but im more interested in the stop band. if i hp at 60hz its material just below that rings.

just tried waves ren and that hp is a bit tighter sounding at 24db, and even up to 36db. so yes that'd be my favourite now for the low end. heres a 36db/oct -3 at 60hz shot, although i think your analyser dont like waves and it seems to display bandwidth wrong for any bell setting compared to use in a host, the hp seems to read more correct though (?).

amazing how musical ren still is for such an old digital eq (symetrical bell, tight hp, defalts to wide boost narrow cut, low cpu, simple gui).

martian · Post by **martian** » Sat Jul 15, 2006 7:25 pm

bug: if i hit the eco switch in lin phase mode sx crashes

Christian Budde · Post by **Christian Budde** » Sat Jul 15, 2006 7:50 pm

martian wrote:bug: if i hit the eco switch in lin phase mode sx crashes

confirmed, it's the same with any other host. I will fix it ASAP,

Christian

_dada_ · Post by **_dada_** » Sat Jul 15, 2006 8:45 pm

First :
great EQ, nice Work !
Using it in SX 3.1, and Samplitude 8.31.

A few issues / questions / suggestions :

Can't find an easy way to reset the gain, of a single node.
Two or more selected nodes can easily be resetted,
but a single ... ?

Is a Fine / Coarse switch ( via shift ), for the mouse wheel, on the 'to do' list ?
( .. alt does something similar, but it's hard to control ... )

Analyzer settings are not stored in presets ?!

Any plans for an additional adjustable Analyzer Gain ?
Auto gain for Analyzer can slow down workflow.
Also,
it would be quite irritating, if the visible Level Range would be changed according to the signal.
For reliable reading, at least the range should be fixed ( better : adjustable ).
... and 1+ for a faster response.

Do nodes with 0db gain, use CPU ?

Thanks, Jan

Christian Budde · Post by **Christian Budde** » Sat Jul 15, 2006 9:24 pm

_dada_ wrote:A few issues / questions / suggestions :

Can't find an easy way to reset the gain, of a single node.

Two or more selected nodes can easily be resetted,
but a single ... ?

Ok, in the next intermediate release there will be a shift+doubleclick to reset a single band. However the next major update for any usability related thing will be with version 1.6. Right now there are too many shortcuts and some of them are even twice. With that update we will make all shortcuts customisable and with that clean-up some other stuff.

_dada_ wrote:Is a Fine / Coarse switch ( via shift ), for the mouse wheel, on the 'to do' list ?( .. alt does something similar, but it's hard to control ... )

What's wrong with [ALT]+mousewheel? It works perfect on my machine.

_dada_ wrote:Analyzer settings are not stored in presets ?!

Some people prefer the settings to be stored in a preset, others like it to be global. As far as I remeber the setting is stored in the preset, but not loaded. Maybe I should make it customizable as well.

_dada_ wrote:Any plans for an additional adjustable Analyzer Gain ?
Auto gain for Analyzer can slow down workflow.
Also,
it would be quite irritating, if the visible Level Range would be changed according to the signal.
For reliable reading, at least the range should be fixed ( better : adjustable ).
... and 1+ for a faster response.

The analyser will receive a major update with version 1.7, I guess. Some minor issues can be fixed with the next intermediate release. I'll see what I can do here.

_dada_ wrote:Do nodes with 0db gain, use CPU ?

Yes and in 'analog' mode they do also effect the sound. In case of 'gain' in 'analog' mode, it is a single op-amp make-up module introducing a tiny ammount of non-linearities (like real hardware). Alternatively you can bypass the filter or remove it (by hitting [del]).

Christian

Christian Budde · Post by **Christian Budde** » Sun Jul 16, 2006 12:10 am

Just uploaded the 1.5.4beta version.

Changes:
- 'Linear Phase' economy works again
- Butterwoth filters implemented (24 dB/Oct, 48 dB/Oct)
- shift+doubleclick to reset a single band
- analyser has a popup menu (right click [input]/[output])
-> adjustable FFT size
-> adjustable Speed
-> currently very early beta, doesn't saves that yet

The link is: http://www.aixcoustic.com/uploads/media ... l_154b.zip

_dada_ · Post by **_dada_** » Sun Jul 16, 2006 1:27 am

Thanks for the quick reply, Christian !

Christian Budde wrote: Ok, in the next intermediate release there will be a shift+doubleclick to reset a single band. However the next major update for any usability related thing will be with version 1.6. With that update we will make all shortcuts customisable and with that clean-up some other stuff.

Sounds good !

Christian Budde wrote:
_dada_ wrote:Is a Fine / Coarse switch ( via shift ), for the mouse wheel, on the 'to do' list ?( .. alt does something similar, but it's hard to control ... )
What's wrong with [ALT]+mousewheel? It works perfect on my machine.

AFAIR the mousewheel gets disabled, after releasing the Alt key ...
have to take a closer look ....

Christian Budde wrote:
_dada_ wrote:Analyzer settings are not stored in presets ?!
Some people prefer the settings to be stored in a preset, others like it to be global.

For me 'global' or 'preset' would be fine, but in SX it never remembers it's on/off or Input/output settings, on a new instance.
Will check the new beta ...

Christian Budde wrote:
_dada_ wrote:Do nodes with 0db gain, use CPU ?
Yes

Would it be hard work, to 'auto - bypass' them, in Digital mode ??

Christian Budde wrote:Alternatively you can bypass the filter or remove it (by hitting [del]).

Yes I know.
I own many EQs. Still looking for the 'fast and easy general purpose, low CPU' EQ.
I think, Electi-Q is the solution ( ... and sure enough, it can do a lot more ... ).
But, bypass and reactivate, takes too long.
[del], can not be used in SX ( the node is deleted, but also the selected track or part ).

bye, Jan

Christian Budde · Post by **Christian Budde** » Sun Jul 16, 2006 2:10 am

_dada_ wrote:[del], can not be used in SX ( the node is deleted, but also the selected track or part ).

Argh, damn shortcut overrides. That was the reason, why I doubled the [CTRL]+Z to 'U' to perform an undo.

Christian

P.S.: I havn't changed something in combination with saving the analyser state in the beta yet.

_dada_ · Post by **_dada_** » Mon Jul 24, 2006 11:00 am

Any news ?
Did You see my PM, Christian ?

Jan

Christian Budde · Post by **Christian Budde** » Mon Jul 24, 2006 11:10 am

_dada_ wrote:Any news ?
Did You see my PM, Christian ?

Got your PM. I was away over the weekend, so there was no development. I've just started to work on the next version again.
Expect the update within the next two days.

Christian

Christian Budde · Post by **Christian Budde** » Thu Jul 27, 2006 11:18 am

I just want to let you know, that we released the version 1.5.4 of the Electri-Q today. It took a little bit longer due to the hot weather here in germany.

Changes:
- linear phase mode now works above 44100Hz
- CPU Performance improved for all Butterworth filter.
- analyzer enhanced ->right click Input/Output button for options
- analyzer options can be saved globally (saving within the preset will be available with 1.6 in the near future)
- shift+right click on filter band launches a popup menu sorted by type instead of category

Link: http://www.aixcoustic.com/index.php/Electri-Q/13/0/

Kind regards,

Christian

asseca · Post by **asseca** » Thu Jul 27, 2006 3:49 pm

Thanks for the Butterworth filtes, really handy for steep low pass filtering ...

Electri-Q v1.5.4 released