MellowDios
Registered
Wow! It's been ten years since I did the room correction on my previous studio, using Doug Plumb's RplusD and REW 3.29 - 4.11. REW has blossomed unbelievably. Kind of intimidating actually. Dauntless, nonetheless. I leap into the breach.
My room is 17'7" x 11'1" x 7'3". as close to Fibonacci as I could build it, considering space limitations.
For initial tests (no room treatment) and speaker placement, I have REW 5.19 running on a Macbook Pro (USB, single analog port for input and output depending on what's plugged in. I have an EMM-6 (with cal file from Dayton (0 degrees. no sensitivity data) plugged into a simple Blue Icicle USB inline preamp (volume control, quoted as 0dB b to -40dB in the pithy manual). The Macbook's stereo analog out (headphone jack, level controllable in the Sound panel on the Mac) runs through unbalanced lines to the inputs on my Bryston power amplifier, to my Mains. I've yet to install my single sub.
This setup seemed to function, although I had considerable difficulty getting a useable level in REW for the first while. Here are a couple of screen dumps showing what fields are available in Soundcard Preferences and the setup in Mic/Meter Preferences.
There doesn't seem to be any way to make a Soundcard cal file, unless I'm missing it. As you can see, I had to reduce the Sweep Level drastically to get a reading (similar to what is suggested in Help for using a USB mic). Even though I was able to calibrate the SPL meter successfully, initially I could not get a level high enough to perform a measurement. After fiddling with the levels a few times I did successfully record a measurement, but I'm unsure of the accuracy of the results.
I've attached two mdat files. One full range and one 0-200 Hz. I'd appreciate it very much if someone could tell me if these graphs look reasonable. Also, an explanation of how to interpret the phase data, or how to record it in a way that is more relevant, would be great too.
It never ceases to amaze me how music and audio can be so frustrating and so much fun at the same time. Thanks in advance.
My room is 17'7" x 11'1" x 7'3". as close to Fibonacci as I could build it, considering space limitations.
For initial tests (no room treatment) and speaker placement, I have REW 5.19 running on a Macbook Pro (USB, single analog port for input and output depending on what's plugged in. I have an EMM-6 (with cal file from Dayton (0 degrees. no sensitivity data) plugged into a simple Blue Icicle USB inline preamp (volume control, quoted as 0dB b to -40dB in the pithy manual). The Macbook's stereo analog out (headphone jack, level controllable in the Sound panel on the Mac) runs through unbalanced lines to the inputs on my Bryston power amplifier, to my Mains. I've yet to install my single sub.
This setup seemed to function, although I had considerable difficulty getting a useable level in REW for the first while. Here are a couple of screen dumps showing what fields are available in Soundcard Preferences and the setup in Mic/Meter Preferences.
There doesn't seem to be any way to make a Soundcard cal file, unless I'm missing it. As you can see, I had to reduce the Sweep Level drastically to get a reading (similar to what is suggested in Help for using a USB mic). Even though I was able to calibrate the SPL meter successfully, initially I could not get a level high enough to perform a measurement. After fiddling with the levels a few times I did successfully record a measurement, but I'm unsure of the accuracy of the results.
I've attached two mdat files. One full range and one 0-200 Hz. I'd appreciate it very much if someone could tell me if these graphs look reasonable. Also, an explanation of how to interpret the phase data, or how to record it in a way that is more relevant, would be great too.
It never ceases to amaze me how music and audio can be so frustrating and so much fun at the same time. Thanks in advance.
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