Is anyone using a ULN8 as an active crossover ?

[Bob Stern]

The ULN-8 filters are minimum phase, so you don't have the alternative of a linear phase filter as in DEQX. This is because Pro audio equipment seeks to minimize latency, so they use IIR filters rather than FIR filters.

 

[Bob Stern]

If you are considering Metric Halo, you probably have a Mac. In that case, FuzzMeasure is good software for spectral analysis. (John Atkinson uses it.)

http://supermegaultragroovy.com/products/FuzzMeasure/

 

[Bob Stern]

Elaborating Barry Diamant's point about using MIO "primitives" to construct a FIR filter:

 

One of the DSP building blocks is a multi-tap delay line. You can cascade several of these to create an FIR filter. I don't know how many filter taps the DSP engine can handle.

 

Also, you would have to use some software to calculate the FIR filter coefficients from a desired frequency response curve and then manually enter each coefficient into the MIO software, which will download it to the ULN-8 hardware DSP engine.

 

[Bob Stern]

Have you reported to Sonic Studio that your DSP doesn't work above 16/44? It doesn't sound right. Pro users run 8 channels of more complex DSP than this.

 

[Bob Stern]

Are you using Sonic Studio's proprietary plugin called SonicEQ? If so, try replacing SonicEQ with MIOEq.