do you have to have a spl connected to the computer to use rew?
I'm going to take a wild guess here and assume you mean the word 'microphone' when you say 'spl'.
SPL is an acronym for sound pressure level.
If you're asking whether you could use REW to chart external readings already obtained by some other means, then the answer is yes, if they're in the correct format.
I'll just print out the specific section in the REW HELP file I previously suggested reading.....
I have edited out things that may not pertain to you.
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Importing Measurement Data
Frequency Response Text Files
File - Import Measurement command accepts text files in the following formats:
Cubic spline interpolation is used between sample points
Generic comma, TAB or space delimited files
Data must be presented as freq, SPL pairs, one pair per line
Samples can be at arbitrary frequency spacing, but each line must have a higher frequency than the one before and there must be at least 5 freq, spl data pairs
Only lines which begin with a number are imported, others are ignored
In comma-delimited files there must be at least one space after the comma
Spaces before values are ignored
To add a comment on a data line put a tab, comma or space after the spl value
Comma-delimited File Format
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.
Space-delimited File Format
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
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brucek