Reply To: Powersoft group EQ

[EA Support]

EA Support

30 May 2024 at 5:17 pm #820

In Armonia, we have 3 different windows on which we can EQ, they are shown in the amplifier view on the left:

First one is Advanced EQ, second one is Speaker EQ, and last is Ways (output EQ). FIR Designer is able to output to the last 2, which are very similar in the fact that they both can handle FIR and IIR. Advanced EQ is only IIR, and is the same EQ layer used in the groups:

Here for example, we have multiple groups. We can add any and all speakers to a group, and these use the Advanced EQ type (no FIR):

We can import .xml files, but those made for Speaker and Output EQ in FIRDesigner do not work:

Also, we cannot export to .xml, only to the proprietary format, .iqp, that you can find attached. I do not think it would be very different to export to this EQ type, the easiest way would be to add this possibility to the save IIR coefs in the IIR tab, so we could export to xml, and directly import in a group.

The Speaker and Output EQ with FIR still work in Armonia, the fact is that on a site with more than 2 speakers, opening each amplifier, load EQs one by one to each output is very time consuming, and you cannot benefit from the visual feedback that the workspace view offers.

I hope this helps !

This Powersoft Advanced EQ is different to traditional IIR filters. It’s very similar to Lake EQ (found in the Lake Controller and which initially appeared in the 2000’s) and it uses filter prototype shapes* which are combined into a composite EQ curve or response. In the background, all the group curves, which affect a particular loudspeaker, are summed and converted into a minimum-phase filter response.

At the moment we can’t emulate this kind of EQ in FIR Designer. (However we have created an emulation of the Lake EQ and it’s just been released in Rational Acoustics “Data Modeler” software.)

* Lake named some of these filter prototypes “raised cosine” and “mesa” filters.

Best regards,
EA Support