Support Forums Forums FIR Creator Support Unable to import target from REW Reply To: Unable to import target from REW

28 February 2022 at 6:50 am #447

Hi liveNathan,

Take a look at

Loudspeaker Measurement Import File Formats

The file starts with:

* Measurement data measured by REW V5.20.5
* Source: EQ window target shape
* Format:
* Dated: Feb 27, 2022 11:39:39 AM
* REW Settings:
* C-weighting compensation: Off
* Target level: 75.0 dB
* Note:
* Measurement: Target Main Native
* Smoothing: 1/48 octave
* Frequency Step: 96 ppo
* Start Frequency: 2.5 Hz
*
* Freq(Hz), dBFS(dBFS)
2.500000, -125.155
2.518116, -124.904
2.536363, -124.653
2.554743, -124.402
2.573256, -124.151
2.591902, -123.900
2.610684, -123.649
2.629602, -123.399
2.648658, -123.148
2.667851, -122.897
2.687183, -122.646
2.706656, -122.395
2.726269, -122.144

It’s a 2 column file with Freq & Magnitude but “FIR Creator” requires 3 or 4 column for Freq|Mag|Phase|Coherence. Since there are so many different ways TXT and CSV files can be created, we’ve had to put some rules around how we import files. We do look for a few special cases, and for REW, we currently look for the starting line

* Impulse Response data saved by REW

We’ll look at adding something for this file’s header also.

In the meantime I suggest copying this into Excel, adding a 3rd column of 0’s, and saving as a 3 column txt file.

Alternatively, if your intended target response is something simple, use “FIR Creator” in “Direct Design” mode, make your target response, export as a FIR Designer Target File (FDT) and import this on the Target tab.

Regards,
EA Support