REW can import measurement data from other applications, in particular the deservedly popular ETF5 measurement system (http://www.acoustisoft.com). Most ETF5 export formats are supported, along with generic comma, space or TAB-delimited text files. Note that when making measurements with ETF5 it is best to use use the calibrated SPL option to allow level comparisons between channels.
Full range ETF measurements allow the impulse response to be exported in a .pcm raw data format, using the File -> Write Impulse As *.pcm option. Use REW's File - Import Impulse Response command to load these files. Importing the impulse response allows the Wizard's Low Frequency Spectral Decay and Waterfall plots to be generated from the data (this is not possible when importing frequency response text files). REW loads the first 128k samples from the file (approx 2.73s at 48k sampling).
The File - Import Impulse Response command can also be used to load impulse responses that have been saved as .wav format. REW loads the first 128k samples from the file (approx 2.73s at 48k sampling).
The File - Import Measurement command accepts text files in the following formats:
Here is an example of a valid format for comma-delimited data:
SPL measurements acquired by Room EQ Wizard V3.08 Source: D:\RoomEQ_Wizard\test files\testfile.txt Format: Comma delimited data Dated: 05-Mar-2005 17:53:56 Channel: Left, Bass limited 80Hz 20.0, 65.01 21.0, 65.77 22.0, 67.50 23.0, 67.93 24.0, 68.22 25.0, 67.88 26.0, 67.92 27.0, 68.31, this line has a comment 28.0, 69.14 29.0, 69.16 30.0, 69.29
If comma is used as the decimal delimiter in your locale it is best for clarity to use TAB or space as the separator.
Here is some data in space-delimited format
SPL measurements acquired by Room EQ Wizard V3.21 Source: D:\RoomEQ_Wizard\test files\testfilespace.txt Format: Space delimited data Dated: 27-May-2005 13:03:26 Channel: Left, Bass limited 80Hz 20.0 65.01 21.0 65.77 22.0 67.50 23.0 67.93 24.0 68.22 25.0 67.88 26.0 67.92 27.0 68.31 this line has a comment 28.0 69.14 29.0 69.16 multiple spaces are OK 30.0 69.29