sebackman

02-08-2015, 03:28 AM

I知 wondering if anyone has seen an SW that can calculate active filter setting for a given measuring curve given certain filter (EQ&PEQ) parameters.

When JBL decided the parameters for the JBL SDEC (aka BSS BLU160) they use for active filter and EQ they must have had a program determining the first set of filter parameters and from that done additional listening and measuring.

What I知 looking for is a program where I can feed a measured curve and then give the program calculation boundaries in form of what EQ痴 and how many are available.

Par example;

high shelving slope 6db

high shelving slope 12db

low shelving slope 6db

low shelving slope 12db

PEQ Q=1-10

+/- 6db for all filters

Resolution 0,1db

max 14 filters in series used (like in JBL M2 HF below) or less

http://www.audioheritage.org/vbulletin/showthread.php?33972-JBL-Master-Reference-Monitor&p=354293&viewfull=1#post354293

Post #500 (coutesy of member 4313B)

It should not be so complicated programming a Monte Carlo simulation, or similar, to run 20.000 iterations (or more) using 0,1 db increments with all filter combinations to determine what combination of 14 filters (or number of choise) would result in a reasonable flat curve. From there more listening and measuring can be done.

To do that by hand would take ages with 14 filters.

Any thoughts

Kind regards

//RoB

When JBL decided the parameters for the JBL SDEC (aka BSS BLU160) they use for active filter and EQ they must have had a program determining the first set of filter parameters and from that done additional listening and measuring.

What I知 looking for is a program where I can feed a measured curve and then give the program calculation boundaries in form of what EQ痴 and how many are available.

Par example;

high shelving slope 6db

high shelving slope 12db

low shelving slope 6db

low shelving slope 12db

PEQ Q=1-10

+/- 6db for all filters

Resolution 0,1db

max 14 filters in series used (like in JBL M2 HF below) or less

http://www.audioheritage.org/vbulletin/showthread.php?33972-JBL-Master-Reference-Monitor&p=354293&viewfull=1#post354293

Post #500 (coutesy of member 4313B)

It should not be so complicated programming a Monte Carlo simulation, or similar, to run 20.000 iterations (or more) using 0,1 db increments with all filter combinations to determine what combination of 14 filters (or number of choise) would result in a reasonable flat curve. From there more listening and measuring can be done.

To do that by hand would take ages with 14 filters.

Any thoughts

Kind regards

//RoB