Third line (magenta) is with Roon applying a 2KHz, 36dB high pass filter (just to check that things are working as they should). Second line (green) is with convolution filter (generated from REW) applied by Roon. Top line (red) is speaker response with no DSP applied in Roon.
![soundflower for windows rew soundflower for windows rew](http://fm801.kewl.org/assets/files/images/hardware/synth/creative-awe64.jpg)
Image (below) shows 3 things measured in this way.
![soundflower for windows rew soundflower for windows rew](http://cdn.remotehd.com/images/support/audio-setup/mac/soundflower-step-20.jpg)
SOUNDFLOWER FOR WINDOWS REW MAC
Record the test sweep that REW produces (I did this on a Mac using Soundflower and Audacity then saved the output as a FLAC file).Checking this option means that REW waits until it hears the timing signal before starting to measure. It has an option to use a timing signal (use Acoustic Timing Reference). REW works by playing a sweep (from low to high frequency). Here’s a way to test Roon filters using REW. Perhaps best to confirm this with XTZ (and choice of white or pink noise). If you run white noise (or pink - i have to check - i can never remember) through Roon after you apply your PEZ filters, your XTZ RTA would give you an idea on how flat the signal produced is. I corrected for them, but had to almost immediately leave for a business trip so have not a/b’ed the results sufficiently to have an opinion on the differences of the applied PEQ in Roon.
![soundflower for windows rew soundflower for windows rew](https://y31uv4ra1.vo.llnwd.net/content/wp/tweaklibrary_com/uploads/2021/02/Audio-Recording.png)
Am i at an early stage in testing the XTZ filters. Perhaps your system does not work that way? Now i have a thought - in my system i send the XTZ signal via a preamp with a digital out to a DAC Roon ready PreAmp (PS Audio). When you do XTZ’s room measurement (no filters in XTZ applied) then the signal produced by XTZ and played out of the ROON DAC should reflect these filters. You apply the suggested XTZ filter to ROONs PEQ and apply. Not being able to test Roon’s implemention.