Home Theater Systems - Electronics and Forum - HomeTheaterShack - View Single Post - accuracy of REW for full range measurements?
View Single Post
Old 11-17-06, 09:32 PM   #7 (Link)
brucek
Shack Administrator
Platinum Supporter
Alias: brucek
User: #6
Since: Apr 2006
Posts: 5,221
  brucek is online now    
Re: accuracy of REW for full range measurements?


Quote:
Maybe I need to re load the program?
Not likely, it's just an exe.
Is your soundcard.cal file good from 10Hz to 20000Hz?
If you connect a cable from the LINE_OUT to the LINE_IN right channels and do a full sweep measurement with the soundcard.cal loaded and C-weight unchecked and microphone cal removed, is it indeed a perfect flat line response? It should be.

Quote:
any reason why REW can't be used for full range measurement?
Certainly it can, as long as you have a proper full range soundcard.cal and a microphone.cal loaded.
See my thread here. Look at the graphs.. your loopback measurement should look like the red line..

Quote:
Has it indeed been found that the other options are inaccurate? not needed?
Not needed. If you need individual frequencies, you can use the internal signal generator.

brucek


Forum Rules Reply With Quote